Добірка наукової літератури з теми "Spherical collapse model"
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Статті в журналах з теми "Spherical collapse model"
DEL POPOLO, ANTONINO. "IMPROVEMENTS TO THE SPHERICAL COLLAPSE MODEL." International Journal of Modern Physics D 15, no. 07 (July 2006): 1067–88. http://dx.doi.org/10.1142/s0218271806008553.
Повний текст джерелаTaddei, Laura. "Spherical Collapse in the Symmetron Model." Journal of Physics: Conference Series 470 (December 6, 2013): 012006. http://dx.doi.org/10.1088/1742-6596/470/1/012006.
Повний текст джерелаGOVENDER, M., K. S. GOVINDER, S. D. MAHARAJ, R. SHARMA, S. MUKHERJEE, and T. K. DEY. "RADIATING SPHERICAL COLLAPSE WITH HEAT FLOW." International Journal of Modern Physics D 12, no. 04 (April 2003): 667–76. http://dx.doi.org/10.1142/s0218271803003086.
Повний текст джерелаDel Popolo, Antonino, and Morgan Le Delliou. "Splashback Radius in a Spherical Collapse Model." Universe 8, no. 9 (September 6, 2022): 462. http://dx.doi.org/10.3390/universe8090462.
Повний текст джерелаDel Popolo, A. "Some improvements to the spherical collapse model." Astronomy & Astrophysics 454, no. 1 (July 2006): 17–26. http://dx.doi.org/10.1051/0004-6361:20054441.
Повний текст джерелаCupani, Guido, Marino Mezzetti, and Fabio Mardirossian. "Angular momentum in cluster Spherical Collapse Model." Monthly Notices of the Royal Astronomical Society 417, no. 4 (October 6, 2011): 2554–61. http://dx.doi.org/10.1111/j.1365-2966.2011.19419.x.
Повний текст джерелаLee, Seokcheon. "Spherical collapse model with and without curvature." Physics Letters B 685, no. 2-3 (March 2010): 110–14. http://dx.doi.org/10.1016/j.physletb.2010.01.058.
Повний текст джерелаSanchez-Conde, M. A., J. Betancort-Rijo, and F. Prada. "The spherical collapse model with shell-crossing." Monthly Notices of the Royal Astronomical Society 378, no. 1 (June 11, 2007): 339–52. http://dx.doi.org/10.1111/j.1365-2966.2007.11798.x.
Повний текст джерелаDEL POPOLO, A., F. PACE, and J. A. S. LIMA. "EXTENDED SPHERICAL COLLAPSE AND THE ACCELERATING UNIVERSE." International Journal of Modern Physics D 22, no. 08 (June 21, 2013): 1350038. http://dx.doi.org/10.1142/s0218271813500387.
Повний текст джерелаMohanty, Sujata, and Rajesh Gopal. "Analysis of cosmological bias within spherical collapse model." EUREKA: Physics and Engineering, no. 5 (September 30, 2022): 3–11. http://dx.doi.org/10.21303/2461-4262.2022.002429.
Повний текст джерелаДисертації з теми "Spherical collapse model"
Reyes, Juan Daniel Bojowald Martin. "Spherically symmetric loop quantum gravity connections to two-dimensional models and applications to gravitational collapse /." [University Park, Pa.] : Pennsylvania State University, 2009. http://etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-4758/index.html.
Повний текст джерелаCupani, Guido. "Non equilibrium dynamics of galaxy clusters." Doctoral thesis, Università degli studi di Trieste, 2009. http://hdl.handle.net/10077/3065.
Повний текст джерелаThe thesis is focused on the dynamics of galaxies in the outskirts of galaxy clusters, where the matter is affected by an overall infall motion towards the cluster centre. Starting from the classical results of the spherical collapse model, we determined new theoretical constraints for the mass profile of clusters as a function of the cosmological parameters. We investigated the importance of the turnaround radius (i.e. the radius where the infall motion counterbalances the Hubble expansion motion) as well as the possibility of directly extracting the mass profile from the infall velocity pattern of member galaxies. The theoretical results were applied to a sample of simulated clusters (Borgani et al. 2004, Biviano et al. 2006) to keep the 3-dimensional dynamics under control. We demonstrated that: (1) most clusters are compatible with a single mass profile in the external region (provided their size and mass are normalized to the turnaround scale); (2) it is possible to extract the individual mass profiles of clusters using a selected subset of galaxies identified on their redshift-position distribution; (3) the Jeans equation and the virial theorem must be corrected in the outskirts of clusters to take into account the overall infall motion of matter. Taking advantage of these results, we developed a new technique for estimating the mass profile in cluster outskirts which only relies on the observational properties of member galaxies. This technique turns out to be simpler and more reliable than the current methods and is suitable to be applied to observations.
La tesi è incentrata sulla dinamica delle galassie nelle periferie degli ammassi di galassie, dove la materia è interessata da un moto complessivo di caduta verso il centro dell'ammasso. A partire dai risultati classici del modello di collasso sferico, abbiamo determinato dei nuovi vincoli teorici al profilo di massa degli ammassi in funzione dei parametri cosmologici. Abbiamo analizzato l'importanza del raggio di "turnaround" (ossia il raggio dove il moto di caduta è controblanciato dal moto di espansione di Hubble) e la possibilità di estrarre il profilo di massa direttamente dalla velocità di caduta delle galassie. Abbiamo poi applicato questi risultati teorici a un campione di ammassi simulati (Borgani et al. 2004, Biviano et al. 2006) per tenere sotto controllo la dinamica in tre dimensioni. Con quest'analisi, siamo stati in grado di dimostrare che: (1) la quasi totalità degli ammassi è compatibile con un unico profilo di massa nelle regioni esterne (purché le loro dimensioni e masse siano riscalate rispetto al raggio di turnaround); (2) è possibile estrarre il profilo individuale di un ammasso utilizzando un ristretto sottoinsieme di galassie, identificate dalla distribuzione dei loro redshift e delle loro posizioni; (3) l'equazione di Jeans e il teorema del viriale devono essere corretti nelle periferie degli ammassi in modo da tener conto del moto di caduta della materia. Grazie a questi risultati, abbiamo sviluppato una nuova tecnica per stimare il profilo di massa nelle zone esterne, basata unicamente sulle proprietà osservative delle galassie. Questa tecnica risulta essere più semplice e affidabile degli altri metodi attualmente utilizzati ed è adatta ad essere applicata alle osservazioni.
XXI Ciclo
1981
Jian, Jia-Hung, and 簡嘉宏. "Spherical Collapse Model( Cosmological N-Body Simulation with Cold Dark Matter and Hot Plasma Gas )." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/95183576032706860748.
Повний текст джерелаWaizmann, Jean-Claude [Verfasser]. "On finding galaxy clusters with Planck and the spherical collapse model in different Dark Energy cosmologies / put forward by Jean-Claude Waizmann." 2010. http://d-nb.info/1009399861/34.
Повний текст джерелаChang, Chia-Chun, and 張嘉君. "Spherical Collapse Models with Clustered Dark Energy." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/7m9222.
Повний текст джерела國立臺灣師範大學
物理學系
106
We use the spherical collapse model to investigate the clustering effect of dark energy (DE) in the structure formation of galaxy clusters. For the fully clustered DE, we treat the overdense region as an isolated system and the total energy of matter and DE conserves inside the spherical region. Under this circumstance, we introduce a parameter r to characterize the degree of DE clustering, defined by the nonlinear density contrast ratio of DE to matter at the turnaround epoch, and thus we are able to determine the process of the spherical collapse and obtain the virialized nonlinear overdensity ∆ vir by the virial theorem. The current observational data on galaxy clusters suggests 0.5 < r < 0.8 for the clustered DE with w < −0.9 at 1σ level. In addition, we utilize the linear perturbation theory to deal with the evolution of DE perturbation at the early time and calculate the related physical quantities. We compare the two methods and find both results consistent with each other while our method introducing a new parameter is simpler and more straightforward without considering the initial DE perturbation and its evolution at the early time.
Книги з теми "Spherical collapse model"
Deruelle, Nathalie, and Jean-Philippe Uzan. Newtonian cosmology. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198786399.003.0016.
Повний текст джерелаЧастини книг з теми "Spherical collapse model"
Umeda, Hideyuki, and Takashi Yoshida. "Nucleosynthesis in Spherical Explosion Models of Core Collapse Supernovae." In Handbook of Supernovae, 1–18. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-20794-0_76-1.
Повний текст джерелаUmeda, Hideyuki, and Takashi Yoshida. "Nucleosynthesis in Spherical Explosion Models of Core-Collapse Supernovae." In Handbook of Supernovae, 1753–70. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-21846-5_76.
Повний текст джерелаAbbasi, Afaq Ahmed, Michele Viviani, Daniele Bertetta, Marina Delucchi, Rico Ricotti, and Giorgio Tani. "Experimental Analysis of Cavitation Erosion on Blade Root of Controllable Pitch Propeller." In Progress in Marine Science and Technology. IOS Press, 2022. http://dx.doi.org/10.3233/pmst220032.
Повний текст джерелаZhao, T., G. T. Houlsby, and S. Utili. "Numerical Simulation of the Collapse of Granular Columns Using DEM." In Discrete Element Modelling of Particulate Media, 133–40. The Royal Society of Chemistry, 2012. http://dx.doi.org/10.1039/bk9781849733601-00133.
Повний текст джерелаТези доповідей конференцій з теми "Spherical collapse model"
LOKAS, E. L., and y. HOFFMAN. "THE SPHERICAL COLLAPSE MODEL IN A UNIVERSE WITH COSMOLOGICAL CONSTANT." In Proceedings of the Third International Workshop. WORLD SCIENTIFIC, 2001. http://dx.doi.org/10.1142/9789812811363_0012.
Повний текст джерелаHasan, Mainul. "Dynamics of a Micro-Bubble Between Two Spherical Particles." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37053.
Повний текст джерелаChahine, Georges. "A Numerical Model for Three-Dimensional Bubble Dynamics in Complex Flow Configurations." In SNAME 22nd American Towing Tank Conference. SNAME, 1989. http://dx.doi.org/10.5957/attc-1989-008.
Повний текст джерелаKrishnan, Gopi, and Kamran Mohseni. "On the Modelling of a Synthetic Jet as a Spherical Jet." In ASME/JSME 2007 5th Joint Fluids Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/fedsm2007-37306.
Повний текст джерелаAlhelfi, Ali, and Bengt Sunden. "The Boundary Integral Method Applied to Non-Spherical Cavitation Bubble Growth and Collapse Close to a Rigid Boundary." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-51687.
Повний текст джерелаMa, Jingsen, Chao-Tsung Hsiao, and Georges L. Chahine. "Euler-Lagrange Simulations of Bubble Cloud Dynamics Near a Wall." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-65191.
Повний текст джерелаGhosh, Koushik, Achintya Mukhopadhyay, Swarnendu Sen, and Dipankar Sanyal. "An Integral Approach for Predicting Vapour Film Collapse and Growth Around a Hot Sphere in Subcooled Water." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-16261.
Повний текст джерелаAlnaimat, Fadi, Omar Alhammadi, and Bobby Mathew. "Condensation Heat Transfer Model: A Comparison Study of Condensation Rate Between a Single Bubble and Multiple Rising Bubbles." In ASME 2021 Heat Transfer Summer Conference collocated with the ASME 2021 15th International Conference on Energy Sustainability. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/ht2021-63593.
Повний текст джерелаMostafa, Khaled, and Ahmed Alian. "Level 3 Fitness for Service Assessment of Dented Pipes With Diameter Less Than 6.25 Inch." In ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-84935.
Повний текст джерелаWang, Ruimin, Fengde Zong, and Yang Yang. "Influence of Parametric Resonance on a Bubble Driven by Intensive Sound During Stable Cavitation." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68610.
Повний текст джерела