Co-Evolution of Supermassive Black Holes and Their Host Galaxies

被引:0
|
作者
Kotilainen, J. K. [1 ]
Decarli, R. [2 ]
Falomo, R. [3 ]
Treves, A. [4 ]
Labita, M. [4 ]
Scarpa, R. [5 ]
机构
[1] Univ Turku, Finnish Ctr Astron ESO FINCA, FI-21500 Turku, Finland
[2] Max Planck Inst Astron, D-69117 Heidelberg, Germany
[3] INAF Osservatorio Astron Padova, I-35122 Padua, Italy
[4] Univ Insubria, I-22100 Como, Italy
[5] Inst Astrofis Canarias, E-38205 Tenerife, Spain
关键词
galaxies: active; galaxies: evolution; galaxies: high-redshift; galaxies: nuclei (galaxies:) quasars: general; ACTIVE GALACTIC NUCLEI; QUASI-STELLAR OBJECTS; LUMINOSITY FUNCTION; BULGE RELATIONSHIP; COSMIC EVOLUTION; MASS; SDSS; HISTORY; SIGMA;
D O I
10.1017/S1743921310005533
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We study the evolution of the M-BH /M-host relation up to z = 3 for a sample of 96 quasars with known host galaxy luminosities. Black hole masses are estimated assuming virial equilibrium in the broad-line regions, while the host galaxy masses are inferred from their luminosities. With this data, we are able to pin down the evolution of the M-BH /M-host relation over 85% of the age of the universe. While the M-BH /M-host relation remains nearly unchanged, taking into account the aging of the stellar population, we find that the M-BH /M-host ratio (Gamma) increases by a factor similar to 7 from z = 0 to z = 3. We show that the evolution of F is independent of radio loudness and quasar luminosity. We propose that the most massive black holes, in their quasar phase at high-redshift, become extremely rare objects in host galaxies of similar mass in the local universe.
引用
收藏
页码:34 / +
页数:2
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