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Halo Density Profiles and Baryon Physics

文献类型：期刊论文

作者Del Popolo, A.1,2,3; Li, Xi-Guo1
刊名ASTRONOMY REPORTS
出版日期2017-08
卷号61页码:631-638
ISSN号1063-7729
DOI10.1134/S1063772917080029
英文摘要The radial dependence of the pseudo phase-space density, rho(r)/sigma (3)(r) is studied. We find that the pseudo phase-space density for halos consisting both of dark matter and baryons is approximately a power-law only down to 0.1% of the virial radius while it has a non-power law behavior below the quoted scale, with inner profiles changing with mass. Halos consisting just of dark matter, as the one in dark matter only simulations, are characterized by an approximately power-law behavior. The results argue against universality of the pseudo phase-space density, when the baryons effect are included, and as a consequence argue against universality of density profiles constituted by dark matter and baryons as also discussed in [1].
WOS关键词DARK-MATTER HALOS ; PHASE-SPACE DENSITY ; SECONDARY INFALL MODEL ; HIGH-RESOLUTION MEASUREMENTS ; SPHERICAL COLLAPSE MODEL ; GALAXY CLUSTERS ; GALACTIC HALOS ; GRAVITATIONAL COLLAPSE ; DYNAMICAL FRICTION ; ANGULAR-MOMENTUM
资助项目[2017 VMA0044]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000407239400001
出版者MAIK NAUKA/INTERPERIODICA/SPRINGER
源URL[http://119.78.100.186/handle/113462/56813]  
专题中国科学院近代物理研究所
通讯作者Li, Xi-Guo
作者单位1.Chinese Acad Sci, Inst Modern Phys, POB 31, Lanzhou 730000, Gansu, Peoples R China
2.Univ Catania, Dipartimento Fis & Astron, I-95125 Catania, Italy
3.INFN, Sez Catania, Via Santa Sofia 64, I-95123 Catania, Italy
推荐引用方式
GB/T 7714		 Del Popolo, A.,Li, Xi-Guo. Halo Density Profiles and Baryon Physics[J]. ASTRONOMY REPORTS,2017,61:631-638.
APA Del Popolo, A.,&Li, Xi-Guo.(2017).Halo Density Profiles and Baryon Physics.ASTRONOMY REPORTS,61,631-638.
MLA Del Popolo, A.,et al."Halo Density Profiles and Baryon Physics".ASTRONOMY REPORTS 61(2017):631-638.

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来源：近代物理研究所

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