Готові списки джерел за темами / Supernovae Ia distance scale

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Добірка наукової літератури з теми "Supernovae Ia distance scale"

Автор: Grafiati
Опубліковано: 11 березня 2023

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Статті в журналах з теми "Supernovae Ia distance scale"

1

Levin, S. F. "Cosmological distances scale: Pt. 11. Extraordinary evidences and cosmically jerk problem." Izmeritel`naya Tekhnika, no. 11 (2020): 3–8. http://dx.doi.org/10.32446/0368-1025it.2020-11-3-8.

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Анотація:
Statistical verification of the “extraordinary” evidence of “acceleration of the expansion of the Universe” due to the “cosmic push” at the redshift interval and at based on data on supernovae of type SN Ia, for which photometric distances were determined, was carried out. The transition from “deceleration” to “acceleration” is considered as a “breakdown” – a change in the structure and parameters of the model of the cosmological distance scale. It is shown that data from different sources do not form a compositionally homogeneous set. The scale model's “misalignment” (discord) was revealed fo
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2

Tammann, G. A. "The Cosmic Distance Scale." Symposium - International Astronomical Union 124 (1987): 151–85. http://dx.doi.org/10.1017/s0074180900159121.

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The zero-point of the extragalactic distance scale, defined by about two dozens of nearby, late-type galaxies, has remained nearly unchanged for the last decade, in spite of the advent of new techniques and great efforts. The distances are essentially tied to trigonometric parallax stars and hence independent of the Hyades modulus; they are consistent with RR Lyr stars. The mean zero-point is therefore probably secure to better than 10%.All known secondary distance indicators are still affected by zero-point errors, by problems in the definition of their relation between distance indicator and
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3

Tammann, G. A., and B. Reindl. "Allan Sandage and the distance scale." Proceedings of the International Astronomical Union 8, S289 (2012): 13–25. http://dx.doi.org/10.1017/s1743921312021059.

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AbstractAllan Sandage returned to the distance scale and the calibration of the Hubble constant again and again during his active life, experimenting with different distance indicators. In 1952 his proof of the high luminosity of Cepheids confirmed Baade's revision of the distance scale (H0 ~ 250 km s−1 Mpc−1). During the next 25 years, he lowered the value to 75 and 55. Upon the arrival of the Hubble Space Telescope, he observed Cepheids to calibrate the mean luminosity of nearby Type Ia supernovae (SNe Ia) which, used as standard candles, led to the cosmic value of H0 = 62.3 ± 1.3 ± 5.0 km s
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4

Sternberg, Assaf. "Evidence for Circumstellar Material in Type Ia Supernovae via Sodium Absorption Features." Proceedings of the International Astronomical Union 7, S281 (2011): 299–302. http://dx.doi.org/10.1017/s1743921312015232.

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AbstractType Ia supernovae are very good tools for measuring distances on a cosmic scale. The consensus view is that mass transfer onto a white dwarf in a close binary system leads to a thermonuclear explosion, though the nature of the mass donor is still uncertain. In the single-degenerate model it is a main-sequence star or an evolved star. In the double-degenerate model it is another white dwarf. We study the velocity structure of absorbing material along the line of sight to 35 Type Ia supernovae and find a statistical preference for blueshifted structures, likely arising in gas outflows f
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5

Levin, S. F. "Cosmological Distance Scale. Part 4. Calibration Based on SN Ia Supernovae." Measurement Techniques 58, no. 5 (2015): 477–84. http://dx.doi.org/10.1007/s11018-015-0740-0.

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6

Wong, Kenneth C., Sherry H. Suyu, Geoff C.-F. Chen та ін. "H0LiCOW – XIII. A 2.4 per cent measurement of H0 from lensed quasars: 5.3σ tension between early- and late-Universe probes". Monthly Notices of the Royal Astronomical Society 498, № 1 (2019): 1420–39. http://dx.doi.org/10.1093/mnras/stz3094.

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ABSTRACT We present a measurement of the Hubble constant (H0) and other cosmological parameters from a joint analysis of six gravitationally lensed quasars with measured time delays. All lenses except the first are analysed blindly with respect to the cosmological parameters. In a flat Λ cold dark matter (ΛCDM) cosmology, we find $H_{0} = 73.3_{-1.8}^{+1.7}~\mathrm{km~s^{-1}~Mpc^{-1}}$, a $2.4{{\ \rm per\ cent}}$ precision measurement, in agreement with local measurements of H0 from type Ia supernovae calibrated by the distance ladder, but in 3.1σ tension with Planck observations of the cosmic
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7

Tammann, G. A. "The Linearity of the Cosmic Expansion Field and the Value of the Hubble Constant." Symposium - International Astronomical Union 183 (1999): 31–47. http://dx.doi.org/10.1017/s0074180900132061.

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A linearity test shows H0 to decrease by 7% out to 18 000 km s–1. The value at 10 000 km s–1 is a good approximation to the mean value of H0 over very large scales. The construction of the extragalactic distance scale is discussed. Field galaxies, cluster distances relative to Virgo, and blue supernovae of type Ia yield H0 (cosmic) with increasing weight; they give consistently H0 = 57 ± 7 (external error). This value is supported by purely physical distance determinations (SZ effect, gravitational lenses, MWB fluctuations). Arguments for H0 > 70 are discussed and shown to be flawed.
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8

Lovyagin, Nikita Yu, Rustam I. Gainutdinov, Stanislav I. Shirokov, and Vladimir L. Gorokhov. "The Hubble Diagram: Jump from Supernovae to Gamma-ray Bursts." Universe 8, no. 7 (2022): 344. http://dx.doi.org/10.3390/universe8070344.

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Анотація:
The Hubble diagram (HD) is a plot that contains a luminous distance modulus presented with respect to the redshift. The distance modulus–redshift relation of the most well-known “standard candles”, the type Ia supernovae (SN), is a crucial tool in cosmological model testing. In this work, we use the SN Ia data from the Pantheon catalogue to calibrate the Swift long gamma-ray bursts (LGRBs) as “standard candles” via the Amati relation. Thus, we expand the HD from supernovae to the area of the Swift LGRBs up to z∼8. To improve the quality of estimation of the parameters and their errors, we impl
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9

Levin, S. F. "Cosmological Distance Scale. Part 5. Metrological Expert Opinion on Type SN Ia Supernovae." Measurement Techniques 59, no. 8 (2016): 791–802. http://dx.doi.org/10.1007/s11018-016-1047-5.

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Regős, Enikő. "Progenitor Evolution and Dark Energy Time Variation from CLASH SNe Ia." Proceedings of the International Astronomical Union 7, S281 (2011): 26–28. http://dx.doi.org/10.1017/s1743921312014627.

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AbstractThe nature and timescales behind the growth of the white dwarf toward the Chandrasekhar mass are not known. The two leading competing scenarios for Type Ia supernovae (SNe Ia) are accretion from a companion [single degenerate (SD)] or merger with another white dwarf [double degenerate (DD)]. Measurement of the SNe Ia delay time distribution could distinguish between these scenarios. Possibly both channels operate, on short (SD) and long (DD) time scales. A supernova search in parallel with our Cluster Lensing And Supernova survey with Hubble extends the Hubble diagram of SNe Ia to z &g
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Дисертації з теми "Supernovae Ia distance scale"

1

Pan, Yen-Chen. "The relationship between type Ia supernovae and their host galaxies." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:2517bb46-781a-4317-adc0-6149f4df500f.

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Анотація:
This thesis studies the relationship between type Ia supernovae (SNe Ia) and their host galaxies. The sample consists of 527 SNe Ia with redshift z&lt;0.09 discovered by the Palomar Transient Factory (PTF). We obtained high-quality photometric and spectroscopic data of the host galaxies and determined their stellar mass M<sub>stellar</sub>, star formation rate (SFR), gas-phase/stellar metallicity, stellar age and SN offset. In the first part of the analysis, we compare the SN Ia photometric properties to the host parameters. Strong correlations between the SN Ia light-curve width (stretch) and
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2

KHETAN, NANDITA. "Astrophysical transients as cosmological probes." Doctoral thesis, Gran Sasso Science Institute, 2021. http://hdl.handle.net/20.500.12571/23541.

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Advancements in the field of cosmology over the past decades have dramatically increased our knowledge of the origin and evolution of the Universe, with increasing precision on measured cosmological parameters. The best model describing the evolution of our Universe is the Lambda Cold Dark Matter ($Lambda$CDM) model. While this model fits numerous observations, some tensions with respect to it have been highlighted. One of the most intriguing is the Hubble tension: a disagreement of $sim 5 sigma$ between the $H_0$ values measured at early- and late-time Universe. It is yet unclear whether this
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3

Montagna, Marco. "Scala delle distanze in astrofisica." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/12831/.

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Анотація:
La misura delle distanze in astrofisica è una materia complessa ma essenziale per la comprensione dei fenomeni astronomici. Nei secoli gli astronomi hanno ideato diversi metodi per ottenere questa importante misura. Nel loro insieme questi metodi formano una scala delle distanze, dove ogni gradino della scala è calibrato a partire dal gradino precedente. I metodi per misurare le distanze in astrofisica sono raggruppati in tre categorie: i metodi geometrici, basati sul concetto di parallasse, che possono essere usati solo all'interno della Via Lattea; gli indicatori primari, i quali sono basati
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4

Antonelli, Daniele. "La scala delle distanze in astrofisica." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/9478/.

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Анотація:
In questo elaborato vengono descritti i principali metodi per il calcolo delle distanze in astrofisica. Viene trattato il fenomeno della parallasse, il funzionamento e alcuni tipi di stelle variabili oltre alle supernove di tipo thermonuclear. Infine sono brevemente discussi alcuni indicatori secondari: le relazioni di Faber-Jackson, Tully-Fisher e la legge di Hubble.
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5

Barbantini, Elena. "Scala delle distanze in Astrofisica." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/16354/.

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Анотація:
Con i vari metodi utilizzati per calcolare le distanze dei corpi celesti è stata creata una vera e propria scala delle distanze astrofisiche, in cui ogni gradino funge da calibro per quello successivo. Infatti, a partire dalla misura delle distanze all'interno del sistema solare e delle stelle vicine, è stato possibile calcolare le distanze delle galassie vicine e successivamente di quelle più lontane, potendo, infine, determinare il valore della costante di Hubble per la stima delle dimensioni dell'Universo.
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6

Vettori, Gregorio. "Scala delle distanze in astrofisica." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21197/.

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Анотація:
In astrofisica la determinazione delle distanze ha sempre assunto un ruolo molto importante, poiché essa consente una più accurata comprensione della struttura e dell’evoluzione dell’universo in cui ci troviamo. Ci sono molti metodi che possono essere seguiti, a seconda degli oggetti di studio e dello scopo della ricerca. I metodi diretti (geometrici), utilizzabili solo nei dintorni del Sistema Solare, permettono di calibrare quelli indiretti (indicatori primari e secondari), i quali sono utilizzabili a distanze molto maggiori. Ogni metodo consente di accurare il successivo, creando così un me
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7

Shappee, B. J., A. L. Piro, T. W. S. Holoien, et al. "THE YOUNG AND BRIGHT TYPE IA SUPERNOVA ASASSN-14lp: DISCOVERY, EARLY-TIME OBSERVATIONS, FIRST-LIGHT TIME, DISTANCE TO NGC 4666, AND PROGENITOR CONSTRAINTS." IOP PUBLISHING LTD, 2016. http://hdl.handle.net/10150/621393.

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Анотація:
On 2014 December 9.61, the All-sky Automated Survey for SuperNovae (ASAS-SN or "Assassin") discovered ASASSN-141p just similar to 2 days after first light using a global array of 14 cm diameter telescopes. ASASSN-141p went on to become a bright supernova (V = 11.94 mag), second only to SN 2014J for the year. We present prediscovery photometry (with a detection less than a day after first light) and ultraviolet through near-infrared photometric and spectroscopic data covering the rise and fall of ASASSN-141p for more than 100 days. We find that ASASSN-141p had a broad light curve (Delta m(15) (
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8

Galbany, i. Gonzàlez Lluís. "Supernova studies in the SDSS-II/SNe Survey: Spectroscopy of the peculiar SN 2007qd, and photometric properties of Type-Ia supernovae as a function of the distance to the host galaxy." Doctoral thesis, Universitat Autònoma de Barcelona, 2011. http://hdl.handle.net/10803/83974.

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Aquesta tesi engloba el treball fet durant els ultims quatre anys com a estudiant de doctorat a l’Institut de Física d’Altes Energies (IFAE), emmarcat dins de la col·labaració Sloan Digital Sky Survey II Supernova (SDSS-II/SNe) Survey. Al primer capítol (§1) s’introdueixen els principals conceptes del Model Estàndar de Cosmologia, presentant els seus orígens, les propietats dels seus continguts, i les mesures de distància i brillantor. També es reconstrueix l’història de l’univers des del Big Bang i es resumeixen alguns dels descobriments més excitants que han confirmat les prediccions
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9

Léget, Pierre-François. "Modélisation des spectres des Supernovas de Type Ia observés par la collaboration The Nearby Supernova Factory dans le but d’améliorer les mesures de distances extragalactiques." Thesis, Clermont-Ferrand 2, 2016. http://www.theses.fr/2016CLF22730/document.

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Анотація:
À la fin des années 90, deux équipes indépendantes ont montré l’expansion accélérée de notre Univers, à partir des mesures de distances de supernovas de type Ia (SNIa). Depuis, une des priorités de la cosmologie moderne est de caractériser ce phénomène et d’en comprendre ses fondements. L’amélioration des mesures de distance réalisées à partir des SNIa est une technique majeure permettant de mieux caractériser l’accélération et donc de déterminer la nature physique de ce phénomène. Ce document développe un nouveau modèle de distribution spectrale en énergie de SNIa nommé le Supernova Useful Ge
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10

Zhang, Bonnie Ruibin. "Precise cosmological analysis of Type Ia supernovae: the Hubble constant and dark energy." Phd thesis, 2018. http://hdl.handle.net/1885/149550.

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The field of physical cosmology has advanced greatly in the last few decades. In this time, a holistic `concordance' model of our Universe has been pieced together: an isotropic and homogeneous Universe which started very small, went through a brief inflationary period, and obeys General Relativity. Approximately a third of its energy content can be attributed to matter (mostly cold dark matter, with some baryonic), and the remainder to `dark' energy, which appears to be a cosmological constant, tied to spacetime itself. Together, these components are re
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Частини книг з теми "Supernovae Ia distance scale"

1

Suntzeff, Nicholas B. "Type Ia Supernovae and Cosmology." In Stellar Candles for the Extragalactic Distance Scale. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-39882-0_10.

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Höflich, Peter, Chris Gerardy, Eric Linder, and Howie Marion. "Models for Type Ia Supernovae and Cosmology." In Stellar Candles for the Extragalactic Distance Scale. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-39882-0_11.

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3

Saha, Abhijit. "The Cepheid Calibration of Type Ia Supernovae as Standard Candles." In Stellar Candles for the Extragalactic Distance Scale. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-39882-0_4.

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4

Branch, David, Peter Nugent, and Adam Fisher. "Type Ia Supernovae as Extragalactic Distance Indicators." In Thermonuclear Supernovae. Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5710-0_44.

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5

Macchetto, F. Duccio, and Nino Panagia. "Distance Scale from Supernovae." In Post-Hipparcos Cosmic Candles. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4734-7_13.

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6

Phillips, Mark M. "Supernovae as Cosmological Standard Candles." In Stellar Candles for the Extragalactic Distance Scale. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-39882-0_9.

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7

Wheeler, J. Craig, and Robert P. Harkness. "Physical Models of Supernovae and the Distance Scale." In Galaxy Distances and Deviations from Universal Expansion. Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4702-3_9.

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Ruiz-Lapuente, P., and A. V. Filippenko. "Towards the Cosmic Distance Scale through Nebular SNe Ia." In Supernovae and Supernova Remnants. Cambridge University Press, 1996. http://dx.doi.org/10.1017/cbo9780511564734.006.

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Adams, Fred C. "Long-term astrophysical processes." In Global Catastrophic Risks. Oxford University Press, 2008. http://dx.doi.org/10.1093/oso/9780198570509.003.0006.

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Анотація:
As we take a longer-term view of our future, a host of astrophysical processes are waiting to unfold as the Earth, the Sun, the Galaxy, and the Universe grow increasingly older. The basic astronomical parameters that describe our universe have now been measured with compelling precision. Recent observations of the cosmic microwave background radiation show that the spatial geometry of our universe is flat (Spergel et al., 2003). Independent measurements of the red-shift versus distance relation using Type Ia supernovae indicate that the universe is accelerating and apparently contains a substantial component of dark vacuum energy (Garnavich et al., 1998; Perlmutter et al., 1999; Riess et al., 1998). This newly consolidated cosmological model represents an important milestone in our understanding of the cosmos. With the cosmological parameters relatively well known, the future evolution of our universe can now be predicted with some degree of confidence (Adams and Laughlin, 1997). Our best astronomical data imply that our universe will expand forever or at least live long enough for a diverse collection of astronomical events to play themselves out. Other chapters in this book have discussed some sources of cosmic intervention that can affect life on our planet, including asteroid and comet impacts (Chapter 11, this volume) and nearby supernova explosions with their accompanying gamma-rays (Chapter 12, this volume). In the longerterm future, the chances of these types of catastrophic events will increase. In addition, taking an even longer-term view, we find that even more fantastic events could happen in our cosmological future. This chapter outlines some of the astrophysical events that can affect life, on our planet and perhaps elsewhere, over extremely long time scales, including those that vastly exceed the current age of the universe. These projections are based on our current understanding of astronomy and the laws of physics, which offer a firm and developing framework for understanding the future of the physical universe (this topic is sometimes called Physical Eschatology – see the review of ćirković, 2003). Notice that as we delve deeper into the future, the uncertainties of our projections must necessarily grow.
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Kirshner, R. P. "Supernovae and the Cosmic Distance Scale." In Supernovae and Supernova Remnants. Cambridge University Press, 1996. http://dx.doi.org/10.1017/cbo9780511564734.004.

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Тези доповідей конференцій з теми "Supernovae Ia distance scale"

1

RÖPKE, Friedrick K. "NUMERICAL SIMULATIONS OF MULTI-SCALE ASTROPHYSICAL PROBLEMS: THE EXAMPLE OF TYPE Ia SUPERNOVAE." In Proceedings of the 6th International Workshop on Data Analysis in Astronomy “Livio Scarsi”. WORLD SCIENTIFIC, 2007. http://dx.doi.org/10.1142/9789812779458_0009.

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2

Balakina, E., and M. Pruzhinskaya. "Peculiar velocities of SNe Ia in clusters of galaxies." In ASTRONOMY AT THE EPOCH OF MULTIMESSENGER STUDIES. Proceedings of the VAK-2021 conference, Aug 23–28, 2021. Crossref, 2022. http://dx.doi.org/10.51194/vak2021.2022.1.1.140.

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The study of the accelerating expansion of the Universe is possible because of the standardization procedure of Type IaSupernovae (SNe). However, we still observe the residual dispersion on the Hubble diagram that could be related toenvironmental effects and unknown peculiar velocities of SNe Ia. In this analysis, we continue to study the peculiar velocitiesof SNe inside galaxy clusters and their influence on distance modulus measurements. We perform the fit for a low redshiftz ≤ 0.15 sample with a fixed value of Ω m for C11 and G10 models and calculate wRM S value to estimate the impactof peculia
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