CORRELATIONS IN RELAXED CLUSTERS OF GALAXIES

被引：0
作者：
Babyk, Iu. [1 ,2 ,3 ]
Del Popolo, A. [4 ,5 ]
机构：
[1] NAS Ukraine, Main Astron Observ, UA-03650 Kiev, Ukraine
[2] Dublin Inst Adv Studies, Dublin 2, Ireland
[3] Dublin City Univ, Dublin 9, Ireland
[4] Univ Catania, Dipartimento Fis & Astron, I-95125 Catania, Italy
[5] Univ Fed Rio Grande do Norte, Int Inst Phys, BR-59012970 Natal, RN, Brazil
来源：
BALTIC ASTRONOMY | 2014年 / 23卷 / 01期
关键词：
cosmology:; theory; large-scale structure of Universe; dark matter; galaxies:; clusters; formation; COLD DARK-MATTER; HUBBLE-SPACE-TELESCOPE; DENSITY-PROFILE; ANGULAR-MOMENTUM; X-RAY; CHANDRA OBSERVATIONS; SECONDARY INFALL; GALACTIC HALOS; MILKY-WAY; COSMOLOGICAL SIMULATIONS;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The correlations among different quantities in galaxy clusters, observed by Newman et al. (2013a,b), are investigated. We find an anti-correlation among the slope a, the effective radius, Re, and a correlation among the core radius rcore and Re. Moreover, the mass inside 100 kpc (mainly dark matter) is correlated with the mass inside 5 kpc (mainly baryons). The listed correlations can be understood in a two phase formation model: the first dissipative phase forming the brightest cluster galaxies, and the second dissipationless phase, in which the inner density profile is flattened by the interaction of baryonic clumps and the dark matter halo through dynamical friction.
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页码：9 / 26
页数：18
相关论文
共 130 条
[1]   Cosmological Parameters from Observations of Galaxy Clusters [J].
Allen, Steven W. ;
Evrard, August E. ;
Mantz, Adam B. .
ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, VOL 49, 2011, 49 :409-470
[2]   DYNAMICAL FRICTION, SECONDARY INFALL, AND THE EVOLUTION OF CLUSTERS OF GALAXIES [J].
ANTONUCCIODELOGU, V ;
COLAFRANCESCO, S .
ASTROPHYSICAL JOURNAL, 1994, 427 (01) :72-85
[3]   Chandra observations of the lensing cluster EMSS 1358+6245:: Implications for self-interacting dark matter [J].
Arabadjis, JS ;
Bautz, MW ;
Garmire, GP .
ASTROPHYSICAL JOURNAL, 2002, 572 (01) :66-78
[4]   On the physical origin of dark matter density profiles [J].
Ascasibar, Y ;
Yepes, G ;
Gottlöber, S ;
Müller, V .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2004, 352 (04) :1109-1120
[5]   Cosmological measure with volume averaging and the vacuum energy problem [J].
Astashenok, Artyom V. ;
del Popolo, Antonino .
CLASSICAL AND QUANTUM GRAVITY, 2012, 29 (08)
[6]  
Avila Reese V., 1998, APJ, V505, P37
[7]   The Chandra X-ray galaxy clusters at z<1.4: constraints on the evolution of L X -T-M g relations [J].
Babyk, I. ;
Vavilova, I. .
ASTROPHYSICS AND SPACE SCIENCE, 2014, 349 (01) :415-421
[8]  
Babyk I, 2012, ADV ASTRON SPACE PHY, V2, P188
[9]  
Babyk I, 2012, ADV ASTRON SPACE PHY, V2, P56
[10]  
Babyk Iu., 2012, ARXIV12082424
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