Details of the mass-temperature relation for clusters of galaxies

被引：298
作者：
Finoguenov, A [1 ]
Reiprich, TH [1 ]
Böhringer, H [1 ]
机构：
[1] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany
来源：
ASTRONOMY & ASTROPHYSICS | 2001年 / 368卷 / 03期
关键词：
galaxies : clusters : general; cosmology : observations; dark matter; large-scale structure of Universe;
D O I：
10.1051/0004-6361:20010080
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present results on the total mass and temperature determination using two samples of clusters of galaxies. One sample is constructed with emphasis on the completeness of the sample, while the advantage of the other is the use of the temperature profiles, derived with ASCA. We obtain remarkably similar fits to the M - T relation for both samples, with the normalization and the slope significantly different from both prediction of selfsimilar collapse and hydrodynamical simulations. We discuss the origin of these discrepancies and also combine the X-ray mass with velocity dispersion measurements to provide a comparison with high-resolution dark matter simulations. Finally, we discuss the importance of a cluster formation epoch in the observed M - T relation.
引用
收藏
页码：749 / 759
页数：11
相关论文
共 59 条
[1]   Linear regression for astronomical data with measurement errors and intrinsic scatter [J].
Akritas, MG ;
Bershady, MA .
ASTROPHYSICAL JOURNAL, 1996, 470 (02) :706-714
[2]   Resolving the discrepancy between X-ray and gravitational lensing mass measurements for clusters of galaxies [J].
Allen, SW .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1998, 296 (02) :392-406
[3]   Pre-heated isentropic gas in groups of galaxies [J].
Balogh, ML ;
Babul, A ;
Patton, DR .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1999, 307 (02) :463-479
[4]  
BOHRINGER H, 1996, 263 MPE, P537
[5]  
BOHRINGER H, 1995, LARGE SCALE STRUCTUR, P181
[6]   Velocity dispersions of CNOC clusters and the evolution of the cluster abundance [J].
Borgani, S ;
Girardi, M ;
Carlberg, RG ;
Yee, HKC ;
Ellingson, E .
ASTROPHYSICAL JOURNAL, 1999, 527 (02) :561-572
[7]  
CAVALIERE A, 1976, ASTRON ASTROPHYS, V49, P137
[8]  
Cen RY, 1999, ASTROPHYS J, V519, pL109, DOI 10.1086/312123
[9]   Evolution of bias in different cosmological models [J].
Colín, P ;
Klypin, AA ;
Kravtsov, AV ;
Khokhlov, AM .
ASTROPHYSICAL JOURNAL, 1999, 523 (01) :32-53
[10]  
COLLINS CA, 2000, IN PRESS MNRAS
123456