Halo density profiles and baryon physics

作者: A. Del Popolo , Xi-Guo Li

DOI: 10.1134/S1063772917080029

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摘要: The radial dependence of the pseudo phase-space density, ρ(r)/σ 3(r) is studied. We find that density for halos consisting both dark matter and baryons approximately a power-law only down to 0.1% virial radius while it has non-power law behavior below quoted scale, with inner profiles changing mass. Halos just matter, as one in simulations, are characterized by an behavior. results argue against universality when effect included, consequence constituted also discussed [1].

参考文章(130)
A. Del Popolo, M. Gambera, PEAK MASS IN LARGE-SCALE STRUCTURE AND DYNAMICAL FRICTION Astronomy and Astrophysics. ,vol. 308, pp. 373- 375 ,(1996)
A. Del Popolo, Density profile slopes of dwarf galaxies and their environment Monthly Notices of the Royal Astronomical Society. ,vol. 419, pp. 971- 984 ,(2012) , 10.1111/J.1365-2966.2011.19754.X
A. Del Popolo, M. Le Delliou, A unified solution to the small scale problems of the ΛCDM model II: introducing parent-satellite interaction Journal of Cosmology and Astroparticle Physics. ,vol. 2014, pp. 051- 051 ,(2014) , 10.1088/1475-7516/2014/12/051
A. Del Popolo, N. R. Napolitano, C. Tortora, V. F. Cardone, Secondary infall model and dark matter scaling relations in intermediate-redshift early-type galaxies Monthly Notices of the Royal Astronomical Society. ,vol. 416, pp. 1822- 1835 ,(2011) , 10.1111/J.1365-2966.2011.19162.X
Massimo Ricotti, Andrew Pontzen, Matteo Viel, Is the Concentration of Dark Matter Halos at Virialization Universal The Astrophysical Journal. ,vol. 663, ,(2007) , 10.1086/520113
Emilio Romano-Díaz, Yehuda Hoffman, Clayton Heller, Isaac Shlosman, Erasing Dark Matter Cusps in Cosmological Galactic Halos with Baryons The Astrophysical Journal. ,vol. 685, ,(2008) , 10.1086/592687
Kandaswamy Subramanian, Renyue Cen, Jeremiah P Ostriker, None, The Structure of Dark Matter Halos in Hierarchical Clustering Theories The Astrophysical Journal. ,vol. 538, pp. 528- 542 ,(2000) , 10.1086/309152
Andrey V. Kravtsov, Ileana M. Vass, Ileana M. Vass, Monica Valluri, Monica Valluri, Stelios Kazanzidis, EVOLUTION OF DARK MATTER PHASE-SPACE DENSITY DISTRIBUTIONS IN EQUAL-MASS HALO MERGERS The Astrophysical Journal. ,vol. 698, pp. 1813- 1825 ,(2009) , 10.1088/0004-637X/698/2/1813
Andrey V. Kravtsov, Daisuke Nagai, Anatoly A. Klypin, Oleg Y. Gnedin, Response of Dark Matter Halos to Condensation of Baryons: Cosmological Simulations and Improved Adiabatic Contraction Model The Astrophysical Journal. ,vol. 616, pp. 16- 26 ,(2004) , 10.1086/424914
Crystal G. Austin, Liliya L. R. Williams, Eric I. Barnes, Arif Babul, Julianne J. Dalcanton, Semianalytical dark matter halos and the Jeans equation The Astrophysical Journal. ,vol. 634, pp. 756- 774 ,(2005) , 10.1086/497133