Accedi

Bibliografie tematiche / Structure and evolution of the Galaxy / Tesi

Segui questo link per vedere altri tipi di pubblicazioni sul tema: Structure and evolution of the Galaxy.

Tesi sul tema "Structure and evolution of the Galaxy"

Autore: Grafiati

Pubblicato: 8 giugno 2024

Ultima modifica: 31 luglio 2025

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili

Scegli il tipo di fonte:

Vedi i top-50 saggi (tesi di laurea o di dottorato) per l'attività di ricerca sul tema "Structure and evolution of the Galaxy".

Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.

Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.

Vedi le tesi di molte aree scientifiche e compila una bibliografia corretta.

1

Machado, murtinheiras martins Andre. "Statistical analysis of large scale surveys for constraining the Galaxy evolution." Thesis, Besançon, 2014. http://www.theses.fr/2014BESA2026/document.

Testo completo

Abstract (sommario):

La formation et l'évolution du disque épais de la Voie Lactée restent controversées. Nous avons utilisé un modèle de synthèse de la population de la Galaxie, le Modèle de la Galaxie de Besançon (Robin et al., 2003), qui peut être utilisé pour l'interprétation des données, étudier la structure galactique et tester différents scénarios de formation et évolution Galactique. Nous avons examiné ces questions en étudiant la forme et la distribution de métallicité du disque mince et du disque épais en utilisant l'approche de synthèse de la population. Nous avons imposé sur des simulations les erreurs

Gli stili APA, Harvard, Vancouver, ISO e altri

2

Cole, Shaun. "Evolution of large scale structure and galaxy formation." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315745.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

3

Majewski, Steven R., Ricardo P. Schiavon, Peter M. Frinchaboy, et al. "The Apache Point Observatory Galactic Evolution Experiment (APOGEE)." IOP PUBLISHING LTD, 2017. http://hdl.handle.net/10150/625493.

Testo completo

Abstract (sommario):

The Apache Point Observatory Galactic Evolution Experiment (APOGEE), one of the programs in the Sloan Digital Sky Survey III (SDSS-III), has now completed its systematic, homogeneous spectroscopic survey sampling all major populations of the Milky Way. After a three-year observing campaign on the Sloan 2.5 m Telescope, APOGEE has collected a half million high-resolution (R similar to 22,500), high signal-to-noise ratio (>100), infrared (1.51-1.70 mu m) spectra for 146,000 stars, with time series information via repeat visits to most of these stars. This paper describes the motivations for the

Gli stili APA, Harvard, Vancouver, ISO e altri

4

Durkalec, Anna. "Properties and evolution of galaxy clustering at 2." Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM4758/document.

Testo completo

Abstract (sommario):

Cette thèse porte sur l'étude des propriétés et l'évolution de regroupement de galaxies pour les galaxies de la gamme de 22. Je ai pu mesurer la distribution spatiale d'une population générale de galaxie à redshift z~3 pour la première fois avec une grande précision. Je ai quantifié le regroupement de galaxie en estimation et la modélisation de la fonction de corrélation projetée (espace réel) à deux points, pour une population générale de 3022 galaxies. Je ai prolongé les mesures de regroupement à la luminosité et des sous-échantillons de masse sélectionné stellaires. Mes résultats montrent q

Gli stili APA, Harvard, Vancouver, ISO e altri

5

Legrand, Louis. "Large surveys : from galaxy evolution to cosmological probes." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASP023.

Testo completo

Abstract (sommario):

Les grands relevés de galaxies sont des fenêtres ouvertes sur notre Univers: ils nous offrent de précieuses informations sur son contenu et sur son évolution. D'une part les relevés profonds explorent la formation et l'évolution des galaxies. D'autre part, les relevés à grand champ cartographient la distribution de la matière dans le but de comprendre la nature de l'énergie noire et de la matière noire.Au cours de cette thèse, j'explore les capacités offertes par ces relevés afin de répondre aux questions suivantes:1. Quels sont les principaux moteurs de l'évolutions des galaxies ? 2. Quelles

Gli stili APA, Harvard, Vancouver, ISO e altri

6

Hatzidimitriou, D. "The evolution and geometry of the oouter parts of the Small Magellanic Cloud." Thesis, University of Edinburgh, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234097.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

7

Laporte, Chervin F. P., Facundo A. Gómez, Gurtina Besla, Kathryn V. Johnston, and Nicolas Garavito-Camargo. "Response of the Milky Way's disc to the Large Magellanic Cloud in a first infall scenario." OXFORD UNIV PRESS, 2018. http://hdl.handle.net/10150/626276.

Testo completo

Abstract (sommario):

We present N-body and hydrodynamical simulations of the response of the Milky Way's baryonic disc to the presence of the Large Magellanic Cloud during a first infall scenario. For a fiducial Galactic model reproducing the gross properties of the Galaxy, we explore a set of six initial conditions for the Large Magellanic Cloud (LMC) of varying mass which all evolve to fit the measured constraints on its current position and velocity with respect to the Galactic Centre. We find that the LMC can produce strong disturbances - warping of the stellar and gaseous discs - in the Galaxy, without violat

Gli stili APA, Harvard, Vancouver, ISO e altri

8

Kruk, Sandor J. "Evolution of barred galaxies and associated structures." Thesis, University of Oxford, 2018. http://ora.ox.ac.uk/objects/uuid:34cc9283-a386-464f-b9ae-1d4e3b4fdf77.

Testo completo

Abstract (sommario):

Bars are common in disc galaxies along with many associated structures such as disc-like bulges, boxy/peanut bulges, rings, etc. They are a sign of maturity of disc galaxies and can play an important role in their evolution. In this thesis, I investigate the specific role bars play in quenching the star formation in, and shaping of their host galaxies. In order to test how bars affect their host galaxies, I study the discs, bars and bulges of what is currently the largest sample of barred galaxies (~3,500), selected with visual morphologies from the Galaxy Zoo project. I perform multi-waveleng

Gli stili APA, Harvard, Vancouver, ISO e altri

9

Laigle, Clotilde. "Observational and theoretical constraints on galaxy evolution at high redshift." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066343.

Testo completo

Abstract (sommario):

Je présente dans cette thèse de nouvelles contraintes sur la formation et l’évolution des galaxies, en étudiant leur croissance en masse et leur évolution au sein de la toile cosmique depuis l’époque de leur formation jusqu’à maintenant. Pour cela, j’ai créé un catalogue photométrique sur le champ COSMOS. Ce catalogue permet de sonder avec précision l’Univers à haut redshift. J’analyse ce relevé observé à l’aide de relevés virtuels, produits à partir de simulations hydrodynamiques. Ces simulations implémentent nos connaissances sur la formation et l’évolution des galaxies.Dans un premier temps

Gli stili APA, Harvard, Vancouver, ISO e altri

10

Roldán, Carlos Antonio Calcáneo. "The evolution of dark matter substructure." Thesis, Durham University, 2001. http://etheses.dur.ac.uk/4232/.

Testo completo

Abstract (sommario):

This thesis investigates the dynamical evolution of systems orbiting within deeper potentials. Initially we use a simple satellite-halo interaction to study the dynamical processes that act on orbiting systems and we compare these results to analytical theory. Deep images of the Centaurus cluster reveal a spectacular arc of diffuse light that stretches for over 100 kpc and yet is just a few kpc wide. We use numerical simulations to show that this feature can be produced by the tidal debris of a spiral galaxy that has been disrupted by the potential of one of the central cD galaxies of the clus

Gli stili APA, Harvard, Vancouver, ISO e altri

11

Czekaj, Maria A. "Galaxy evolution: A new version of the Besançon Galaxy Model constrained with Tycho data." Doctoral thesis, Universitat de Barcelona, 2012. http://hdl.handle.net/10803/123978.

Testo completo

Abstract (sommario):

The understanding of the origin and evolution of the Milky Way is one of the primary goals of the Gaia mission (ESA, launch autumn 2013). In order to study and analyse fully the Gaia data it will be useful to have a Galaxy model able to test various hypothesis and scenarios of galaxy formation and evolution. Kinematic and star count data, together with the physical parameters of the stars - ages and metallicities-, will allow to characterize our galaxy's populations and, from that, the overall Galactic gravitational potential. One of the promising procedures to reach such goal is to optimize

Gli stili APA, Harvard, Vancouver, ISO e altri

12

Kraljic, Katarina. "Links between galaxy evolution, morphology and internal physical processes." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112286/document.

Testo completo

Abstract (sommario):

Cette thèse a pour but de faire le lien entre l’évolution des galaxies, leur morphologie et les processus physiques internes, notamment la formation stellaire comme le résultat du milieu interstellaire turbulent et multiphase, en utilisant les simulations cosmologiques zoom-in, les simulations des galaxies isolées et en interaction, et le modèle analytique de la formation stellaire. Dans le chapitre 1, j’explique la motivation pour cette thèse et je passe brièvement en revue le contexte nécessaire lié à la formation des galaxies et la modélisation en utilisant les simulations numériques. Tout

Gli stili APA, Harvard, Vancouver, ISO e altri

13

Argyle, Joshua J. "The evolution of galaxy structures from a Bayesian perspective." Thesis, University of St Andrews, 2017. http://hdl.handle.net/10023/15647.

Testo completo

Abstract (sommario):

Galaxy structures in the local Universe are the result of an evolution spanning billions of years. The diversity in morphologies observed is due to mechanisms that could either be from external interactions or internal processes. The hierarchical merging of two massive galaxies has long been thought to give rise to pressure-supported spherical structures, including elliptical galaxies and classical bulges. On the other hand, isolated galaxies may evolve at a much slower pace with the accretion of gas forming flattened rotationally-supported discs. Secular evolution could also result in newly f

Gli stili APA, Harvard, Vancouver, ISO e altri

14

Oldham, Lindsay Joanna. "The evolution of dark and luminous structure in massive early-type galaxies." Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/267989.

Testo completo

Abstract (sommario):

In this thesis, I develop and combine strong lensing and dynamical probes of the mass of early-type galaxies (ETGs) in order to improve our understanding of their dark and luminous mass structure and evolution. Firstly, I demonstrate that the dark matter halo of our nearest brightest cluster galaxy (BCG), M87, is centrally cored relative to the predictions of dark-matter-only models, and suggest an interpretation of this result in terms of dynamical heating due to the infall of satellite galaxies. Conversely, I find that the haloes of a sample of 12 field ETGs are strongly cusped, consistent w

Gli stili APA, Harvard, Vancouver, ISO e altri

15

Bastos, Martins Ledo Hugo Ricardo. "A census of nuclear stellar disks in early-type galaxies." Thesis, University of Hertfordshire, 2016. http://hdl.handle.net/2299/17184.

Testo completo

Abstract (sommario):

In this thesis we explored the use of nuclear stellar discs as tracers of the merging history of early-type galaxies. These small structures, just a few tens to a few hundreds of parsecs across, are a common but poorly studied feature of early-type galaxies. They are formed during or shortly after merging events due to the infall of gas, which settles in a disc and leads to the formation of new stars. Initial simulations showed that they should not survive a following major merger and could, therefore, be used to trace the epoch when their host galaxies experienced their last major merger even

Gli stili APA, Harvard, Vancouver, ISO e altri

16

Alpaslan, Mehmet. "The cosmic web unravelled : a study of filamentary structure in the Galaxy and Mass Assembly survey." Thesis, University of St Andrews, 2014. http://hdl.handle.net/10023/4906.

Testo completo

Abstract (sommario):

I have investigated the properties of the large scale structure of the nearby Universe using data from the Galaxy and Mass Assembly survey (GAMA). I generated complementary halo mass estimates for all groups in the GAMA Galaxy Group Catalogue (G³C) using a modified caustic mass estimation algorithm. On average, the caustic mass estimates agree with dynamical mass estimates within a factor of 2 in 90% of groups. A volume limited sample of these groups and galaxies are used to generate the large scale structure catalogue. An adapted minimal spanning tree algorithm is used to identify and classif

Gli stili APA, Harvard, Vancouver, ISO e altri

17

Lee, Bomee, Mauro Giavalisco, Katherine Whitaker, et al. "The Intrinsic Characteristics of Galaxies on the SFR–M ∗ Plane at 1.2 < z < 4: I. The Correlation between Stellar Age, Central Density, and Position Relative to the Main Sequence." IOP PUBLISHING LTD, 2018. http://hdl.handle.net/10150/627039.

Testo completo

Abstract (sommario):

We use the deep CANDELS observations in the GOODS North and South fields to revisit the correlations between stellar mass (M-*), star formation rate (SFR) and morphology, and to introduce a fourth dimension, the mass-weighted stellar age, in galaxies at 1.2 < z < 4. We do this by making new measures of M-*, SFR, and stellar age thanks to an improved SED fitting procedure that allows various star formation history for each galaxy. Like others, we find that the slope of the main sequence (MS) of star formation in the (M-*; SFR) plane bends at high mass. We observe clear morphological differences

Gli stili APA, Harvard, Vancouver, ISO e altri

18

Wicker, Raphaël. "Baryons in galaxy clusters : astrophysical effects and cosmological constraints." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPASP114.

Testo completo

Abstract (sommario):

Les amas de galaxies sont les objets gravitationnellement liés les plus massifs de l'univers, et l'histoire de leur formation est une conséquence directe de l'évolution des structures dans l'univers. Ainsi, leur étude permet de poser des contraintes cosmologiques. L'utilisation des amas en tant que sondes cosmologiques repose sur l'observation de leur contenu en matière, en particulier ordinaire, ou baryons. Ces derniers sont présents sous forme d'étoiles contenues dans les galaxies, et de gaz au sein du milieu intra-amas. Toutefois, les baryons dans les amas de galaxies sont sujets à des effe

Gli stili APA, Harvard, Vancouver, ISO e altri

19

Cousin, Morgane. "Formation & Evolution des galaxies par l'approche semi-analytique." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00968765.

Testo completo

Abstract (sommario):

Les modèles semi-analytiques (SAMs) constituent aujourd'hui le meilleur outils d'analyse et d'étude pour la formation et l'évolution des galaxies individuels mais également des regroupements de galaxies appelés amas. Alors qu'ils reproduisent avec succès les fonctions de masse stellaire, de corrélation à deux points, de luminosité des galaxies locales (z=0), ils échouent dans les prédictions des propriétés des galaxies plus jeunes, à plus haut décalage vers le rouge. Et ce d'autant plus que la masse stellaire est faible. Ces inconsistances entre les modèles et les observations démontrent que l

Gli stili APA, Harvard, Vancouver, ISO e altri

20

Pelliccia, Debora. "Kinematics of COSMOS star-forming galaxies over the last eight billion years." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4733.

Testo completo

Abstract (sommario):

Dans l'Univers local, il existe une relation très étroite entre la morphologie d'une galaxie et d'autres paramètres physiques comme, par exemple, leur cinématique intrinsèque. À grand redshift, il n'est pas clair si cette relation est toujours valide. La cinématique des galaxies est un des outils puissants pour l'étude des processus physiques qui gouvernent la formation des galaxies, en traçant les distributions intrinsèques aux galaxies de matière noire et lumineuse, et leur évolution dans le temps. Cette thèse présente le nouveau sondage HR-COSMOS, dont le but fut d'acquérir le premier échan

Gli stili APA, Harvard, Vancouver, ISO e altri

21

Whitaker, Katherine E., Rachel Bezanson, Dokkum Pieter G. van, et al. "Predicting Quiescence: The Dependence of Specific Star Formation Rate on Galaxy Size and Central Density at 0.5 < z < 2.5." IOP PUBLISHING LTD, 2017. http://hdl.handle.net/10150/623862.

Testo completo

Abstract (sommario):

In this paper, we investigate the relationship between star formation and structure, using a mass-complete sample of 27,893 galaxies at 0.5. <. z. <. 2.5 selected from 3D-HST. We confirm that star-forming galaxies are larger than quiescent galaxies at fixed stellar mass (M*). However, in contrast with some simulations, there is only a weak relation between star formation rate (SFR) and size within the star-forming population: when dividing into quartiles based on residual offsets in SFR, we find that the sizes of star-forming galaxies in the lowest quartile are 0.27. +/-. 0.06 dex smaller than

Gli stili APA, Harvard, Vancouver, ISO e altri

22

Whitaker, Katherine E., Rachel Bezanson, Dokkum Pieter G. van, et al. "Predicting Quiescence: The Dependence of Specific Star Formation Rate on Galaxy Size and Central Density at 0.5 < z < 2.5." IOP PUBLISHING LTD, 2017. http://hdl.handle.net/10150/623944.

Testo completo

Abstract (sommario):

In this paper, we investigate the relationship between star formation and structure, using a mass-complete sample of 27,893 galaxies at 0.5. <. z. <. 2.5 selected from 3D-HST. We confirm that star-forming galaxies are larger than quiescent galaxies at fixed stellar mass (M*). However, in contrast with some simulations, there is only a weak relation between star formation rate (SFR) and size within the star-forming population: when dividing into quartiles based on residual offsets in SFR, we find that the sizes of star-forming galaxies in the lowest quartile are 0.27. +/-. 0.06 dex smaller than

Gli stili APA, Harvard, Vancouver, ISO e altri

23

Ribeiro, Bruno. "Morphology as a tracer of evolution in the early phases of galaxy assembly." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4744/document.

Testo completo

Abstract (sommario):

Les propriétés globales des galaxies montrent une forte évolution du taux de formation stellaire et de la densité de masse stellaire à l'époque de l'assemblage des galaxies précédent le pic de formation stellaire dans l'univers, produite par plusieurs processus physiques concurrents (fusion, accrétion, rétroaction, environnement, ...). Les propriétés morphologiques des galaxies ont aussi fortement évolué à la même époque. Dans cette thèse, j'étudie comment l'évolution des propriétés morphologique est reliée aux propriétés spectrophotométriques des galaxies depuis z ~ 6. Les données spectroscop

Gli stili APA, Harvard, Vancouver, ISO e altri

24

Moutard, Thibaud. "Redshifts photométriques et paramètres physiques des galaxies dans les sondages à grande échelle : contraintes sur l'évolution des galaxies massives." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4782.

Testo completo

Abstract (sommario):

Cette thèse présente la mesure des redshifts photométriques et des paramètres physiques dans le cadre des sondages de galaxies à grande échelle, ainsi que la contrainte qui peut en être extraite sur l'évolution des galaxies. Je montre notamment dans cette thèse dans quelle mesure la calibration photométrique affecte la précision des redshifts photométriques, afin de contraindre la stratégie photométrique à développer pour la mission Euclid.Afin de prendre en compte les problèmes inhérents à l'observation, les analyses ont été effectuée sur la base de données observées dont la configuration est

Gli stili APA, Harvard, Vancouver, ISO e altri

25

Starikova, Svetlana. "Clustering Analysis of Cosmic Sources at High Redshifts." Doctoral thesis, Università degli studi di Padova, 2011. http://hdl.handle.net/11577/3427463.

Testo completo

Abstract (sommario):

This thesis is dedicated to the investigation of clustering properties of both normal and active galaxies over a wide range of redshifts, from local to z>2. These sources, selected in the infrared with Spitzer and X-rays with Chandra, represent different classes of objects in the high-z Universe - X-ray emitting AGNs at z>~1, massive evolved galaxies at z~2, and star-forming galaxies at z~=1.7 and 0.7. We report on the measurements of the correlation functions for these objects and combine them with the clustering models of dark matter halos in order to infer the halo occupation properties of

Gli stili APA, Harvard, Vancouver, ISO e altri

26

Liu, Jiayi. "Constraining the cosmic microwave background temperature evolution and the population and structure of galaxy clusters and groups from the South Pole Telescope and the Planck Surveyor." Diss., Ludwig-Maximilians-Universität München, 2014. http://nbn-resolving.de/urn:nbn:de:bvb:19-172552.

Testo completo

Abstract (sommario):

Galaxy clusters, the massive systems host hundreds of galaxies, are invaluable cosmological probes and astrophysical laboratories. Besides these fascinating galaxies, the concentration of dark matter creates a deep gravitational potential well, where even light passing by is bended and the background image is distorted. The baryonic gas falling into the potential well is heated up to more than 10^7 K that free electrons start to emitting in X-ray. Observing those phenomena leads to a throughout understanding of gravity, particle physics and hydrodynamics. In addition, residing on the top of th

Gli stili APA, Harvard, Vancouver, ISO e altri

27

Kollmeier, Juna Ariele. "The intergalactic medium absorption, emission, disruption /." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1153856075.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

28

Liu, Jiayi [Verfasser], and Joseph [Akademischer Betreuer] Mohr. "Constraining the cosmic microwave background temperature evolution and the population and structure of galaxy llusters and groups from the South Pole Telescope and the Planck Surveyor / Jiayi Liu. Betreuer: Joseph Mohr." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2014. http://d-nb.info/1056876506/34.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

29

Sarron, Florian. "Galaxy clusters in the cosmic web Searching for filaments and large-scale structure around DAFT/FADA clusters Weak lensing study of 16 DAFT/FADA clusters: Substructures and filaments." Thesis, Sorbonne université, 2018. http://www.theses.fr/2018SORUS366.

Testo completo

Abstract (sommario):

En tant que structures liées les plus massives de l’univers, les amas de galaxies permettent d’étudier l’influence de l’environnement sur l’évolution des galaxies. Dans ce manuscrit, je présente AMASCFI, un algorithme de détection d’amas développé durant la thèse et utilise le catalogue d’amas obtenu à partir des décalages spectraux photométriques du relevé Canada France Hawaii Telescope Legacy Survey (CFHTLS) pour étudier le rôle des amas sur l’évolution des galaxies. Je démontre les bonnes performances d’AMASCFI sur Euclid et le CFHTLS à partir de données simulées. Je l’applique au CFHTLS po

Gli stili APA, Harvard, Vancouver, ISO e altri

30

Santiago, Bautista Iris del Carmen. "Étude des propriétés des galaxies dans les structures filamentaires." Thesis, Toulouse 3, 2020. http://www.theses.fr/2020TOU30034.

Testo completo

Abstract (sommario):

La composante baryonique de la structure à grande échelle de l’Univers est composée de concentration de gaz et de galaxies, donnant lieu à des groupes, à des amas, à des filaments allongés et à des murs étendus. Ces structures peuvent suivre la distribution de matière noire dans l’Univers. Néanmoins, selon le modèle cosmologique actuel, l’ensemble des matières baryoniques dans l’Univers n’a pas encore été observé. Cependant, les simulations numériques nous suggèrent qu’entre la moitié et deux tiers des parties des baryons sont localisées entre les amas de galaxies et peuplent les structures qu

Gli stili APA, Harvard, Vancouver, ISO e altri

31

Maciejewski, Michal. "Structures de l'espace des phases des halos de matière noire." Paris 6, 2008. http://www.theses.fr/2008PA066476.

Testo completo

Abstract (sommario):

Durant les trois dernières décennies, la cosmologie et le paradigme de la matière noire ont été étudiés grâce au développement des simulations cosmologiques à N-corps et, parallèlement, à l'acquisition de nouvelles données observationnelles impressionnantes (WMAP, SDSS, HST). Durant mon travail de thèse, j'ai étudié les structures internes des halos de matière noire des galaxies provenant des simulations numériques par une nouvelle méthode appliquée à l'espace des phases à six dimensions. Dans un premier temps, j'ai évalué différentes méthodes utilisées pour l'estimation de la densité de l'esp

Gli stili APA, Harvard, Vancouver, ISO e altri

32

Lombardo, Linda. "Explorer l'histoire de la Galaxie grâce à la spectroscopie stellaire." Electronic Thesis or Diss., Université Paris sciences et lettres, 2022. http://www.theses.fr/2022UPSLO011.

Testo completo

Abstract (sommario):

Ce travail de thèse présente plusieurs études qui utilisent la spectroscopie à haute résolution pour déterminer les propriétés chimiques des différentes populations stellaires de la Voie Lactée. Le document est structuré comme suit : Le premier chapitre de la thèse, divisée en 3 sections, est une introduction générale à la structure de la Voie lactée et à ses populations stellaires, suivie d'une partie décrivant les différentes méthodes utilisées pour mesurer les abondances chimiques des étoiles. La première section décrit les différents scénarios concernant la structure et la formation de la

Gli stili APA, Harvard, Vancouver, ISO e altri

33

Guglielmo, Valentina. "Groups and clusters of galaxies in the XXL survey." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3421945.

Testo completo

Abstract (sommario):

This thesis presents one of the first census of the properties of galaxies in X-ray selected groups and clusters at intermediate redshift, with the aim of assessing the role of envi- ronment on the galaxy stellar mass assembly, star formation activity and observed stellar population properties. My project is framed in the XXL Survey (Pierre et al. 2016), the largest XMM-Newton programme approved to date, covering two extragalactic regions in the sky of 25 deg2 each one. Extended X-ray sources identified as groups and clusters are spectroscopically confirmed and their main properties are chara

Gli stili APA, Harvard, Vancouver, ISO e altri

34

Croton, Darren. "Galaxy Formation and Evolution." Diss., lmu, 2005. http://nbn-resolving.de/urn:nbn:de:bvb:19-44059.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

35

Ruggiero, Rafael. "Galaxy Evolution in Clusters." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/14/14131/tde-14022019-140755/.

Testo completo

Abstract (sommario):

In this thesis, we aim to further elucidate the phenomenon of galaxy evolution in the environment of galaxy clusters using the methodology of numerical simulations. For that, we have developed hydrodynamic models in which idealized gas-rich galaxies move within the ICM of idealized galaxy clusters, allowing us to probe in a detailed and controlled manner their evolution in this extreme environment. The main code used in our simulations is RAMSES, and our results concern the changes in gas composition, star formation rate, luminosity and color of infalling galaxies. Additionally to processes ta

Gli stili APA, Harvard, Vancouver, ISO e altri

36

Curtis, Lake Emma. "Galaxy evolution with FMOS." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:866b8ba5-5353-43a7-9898-a4b767ab0f6d.

Testo completo

Abstract (sommario):

This thesis is concerned with the targeting of emission line galaxies with FMOS (Fibre Multi-Object Spectrograph) to determine properties of star forming galaxies at redshift ~1.5, and provide measurements of the growth rate of large-scale structure through Redshift Space Distortions (RSDs). I also consider the opportunities of targeting the passive galaxy population at high redshift, through measurements of their continuum. I start with the extensive broad-band photometric data available in the UKIDSS-UDS (United Kingdom Infrared Telescope Deep Sky Survey - Ultra-Deep Survey) field which is u

Gli stili APA, Harvard, Vancouver, ISO e altri

37

Linke, Laila Maria [Verfasser]. "Testing models of galaxy formation and evolution with galaxy-galaxy-galaxy lensing / Laila Maria Linke." Bonn : Universitäts- und Landesbibliothek Bonn, 2021. http://d-nb.info/1235524469/34.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

38

Martinet, Nicolas. "Galaxy clusters : a probe to galaxy evolution and cosmology." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066348/document.

Testo completo

Abstract (sommario):

Cette thèse présente un certain nombre de résultats récents à propos de l'évolution des galaxies et la cosmologie, à partir de l'observation d'amas de galaxies en lumière visible. Nous introduisons d'abord les principales propriétés des amas de galaxies (Chapitre 1.1) et la façon dont ces objets permettent de contraindre le modèle cosmologique standard (Chapitre 1.2). Une grande partie des résultats présentés ici ont été obtenus à partir de l'étude du relevé d'amas DAFT/FADA, qui regroupe des amas dans la gamme de décalages spectraux 0.4<br>This thesis presents some recent results concerning g

Gli stili APA, Harvard, Vancouver, ISO e altri

39

Cool, Richard Jacob. "Empirical Measurements of Massive Galaxy and Active Galaxy Evolution." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/195540.

Testo completo

Abstract (sommario):

Using new wide-area galaxy redshift surveys, we explore the evolutionof the most massive galaxies and the most luminous quasars in the universe over much of cosmic history. Quasars and massive red galaxies both areextremes; the most luminous high redshift quasars likely play a key role in shaping their nearby environment and the universe as a whole. The mostmassive galaxies represent the end points of galaxy evolution and containa fossil record of the galaxy evolution process.Using the AGES redshift survey completed with the MMT and the Hectospecmulti-object spectrograph as well as new $z$-b

Gli stili APA, Harvard, Vancouver, ISO e altri

40

Noeske, Kai Gerhard. "Optical and near infrared studies of the photometric structure and starburst activity of blue compact dwarf galaxies." Doctoral thesis, [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969518021.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

41

Thomas, Daniel. "Chemical evolution and galaxy formation." Diss., lmu, 2000. http://nbn-resolving.de/urn:nbn:de:bvb:19-4637.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

42

Bothwell, Matthew Stuart. "Galaxy evolution : near and far." Thesis, University of Cambridge, 2011. https://www.repository.cam.ac.uk/handle/1810/265602.

Testo completo

Abstract (sommario):

The formation of stars from interstellar gas is the cornerstone of galaxy evolution. This thesis represents work undertaken in order to characterise the role of cool interstellar gas, and its relation to star formation, in galaxy evolution across cosmic time. In particular, it concentrates on star forming galaxies at the extremes of the galaxy assembly spectrum - extremely faint dwarfs, and extremely luminous starbursts - in an attempt to test the limits of galaxy evolution models. The thesis falls into two complimentary halves, addressing topics in the low redshift and high redshift Universe

Gli stili APA, Harvard, Vancouver, ISO e altri

43

Moustakas, John. "Spectral Diagnostics of Galaxy Evolution." Diss., The University of Arizona, 2006. http://hdl.handle.net/10150/305142.

Testo completo

Abstract (sommario):

Despite considerable progress in recent years, a complete description of the physical drivers of galaxy formation and evolution remains elusive, in part because of our poor understanding of star formation, and how star formation in galaxies is regulated by feedback from supernovae and massive stellar winds. Insight into the star formation histories of galaxies, and the interplay between star formation and feedback, can be gained by measuring their chemical abundances, which until recently has only been possible for galaxies in the nearby universe. However, reliable star formation and abundance

Gli stili APA, Harvard, Vancouver, ISO e altri

44

Osmond, John Peter Francis. "The evolution of galaxy groups." Thesis, University of Birmingham, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.422727.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

45

Shabala, Stanislav. "AGN feedback in galaxy evolution." Thesis, University of Cambridge, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.612309.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

46

Davidge, Helen. "Probing galaxy evolution with AKARI." Thesis, Open University, 2017. http://oro.open.ac.uk/49554/.

Testo completo

Abstract (sommario):

This thesis presents the first detailed analysis of three extragalactic fields observed by the infrared satellite, AKARI. AKARI is the only telescope able to observe deeply in the Spitzer/IRAC - Spitzer/MIPS band gap of 8-24 microns. The first analysis of these extragalactic fields, was to perform galaxy number counts, the most basic statistical property of galaxy populations. Presented are the counts at 3, 4, 7, 11, 15 and 18 microns. These number counts were compared with published results and galaxy evolution models. These models are dependent on both the Spectral Energy Distribution (SED)

Gli stili APA, Harvard, Vancouver, ISO e altri

47

Romano, Donatella. "Chemical evolution and galaxy formation." Doctoral thesis, SISSA, 2002. http://hdl.handle.net/20.500.11767/4041.

Testo completo

Abstract (sommario):

Following a review of the basic ingredients necessary for constructing models of galactic chemical evolution, with a special emphasis on the issue of stellar evolution and nucleosynthesis (which is treated in detail in Chapter 2), I continue with the basic equations that one needs to solve in order to follow the chemical evolution of a system of gas and stars in time and space. The assumptions of the models I have handled with the aim of addressing different aspects of the formation and evolution of the Milky Way and elliptical galaxies are discussed in Chapter 3. In Chapters 4 and 5,

Gli stili APA, Harvard, Vancouver, ISO e altri

48

Thomas, Nicole. "Galaxy Clustering as a Probe for Galaxy Evolution in Simulations." University of the Western Cape, 2017. http://hdl.handle.net/11394/6206.

Testo completo

Abstract (sommario):

Magister Scientiae - MSc (Physics)<br>Studying clustering on small scales (<10Mpc) over a large span of red- shifts allows us to connect galaxies to underlying cosmic large-scale structure, and thereby provide constraints on the physical processes that drive galaxy evolution. Relatedly, studying the relative bias of galaxies and their halo occupancy quanti es how the underlying dark matter distribution is traced by baryons in galaxies. Comparing model predictions to current and future multi-wavelength galaxy surveys, en- ables a greater understanding of how galaxy formation processes impact th

Gli stili APA, Harvard, Vancouver, ISO e altri

49

Saghiha, Hananeh [Verfasser]. "Comparing galaxy-galaxy(-galaxy) lensing in semi-analytic models and observations to study galaxy evolution / Hananeh Saghiha." Bonn : Universitäts- und Landesbibliothek Bonn, 2017. http://d-nb.info/113070467X/34.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

50

Glazebrook, Karl. "An infrared study of galaxy evolution." Thesis, University of Edinburgh, 1992. http://hdl.handle.net/1842/28109.

Testo completo

Abstract (sommario):

This thesis describes a large-area 2μm survey undertaken on the U.K. Infrared Telescope in Hawaii, using a new infrared imaging camera. The survey convers 594 hskip 0.4cm and is complete and uniform to a limit of K = 17. The main aim of the survey was to construct a sample of galaxies, selected by their 2μm flux, for studies of galaxy evolution. The subsidiary aim was to survey the 2μm Universe and search for any new populations of infrared objects, such as protogalaxies and brown dwarf stars. The first half of this thesis is concerned with the analysis of astronomical data. The detailed metho

Gli stili APA, Harvard, Vancouver, ISO e altri

Offriamo sconti su tutti i piani premium per gli autori le cui opere sono incluse in raccolte letterarie tematiche. Contattaci per ottenere un codice promozionale unico!