Chandra detection of massive black holes in galactic cooling flows

被引：13

作者：

Brighenti, F ^{[1
]}

Mathews, WG ^{[1
]}

机构：

[1] Univ Calif Santa Cruz, Board Studies Astron & Astrophys, Univ Calif Observ, Lick Observ, Santa Cruz, CA 95064 USA

来源：

ASTROPHYSICAL JOURNAL | 1999年 / 527卷 / 02期

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

black hole physics; cooling flows; galaxies : elliptical and lenticular; cD; galaxies : ISM;

D O I：

10.1086/312407

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Anticipating forthcoming Chandra X-ray observations, we describe the continuation of interstellar cooling flows deep into the cores of elliptical galaxies. Interstellar gas heated to T > 1 keV in the potential of massive black holes (r less than or similar to 50 pc) should be visible unless thermal heating is diluted by nonthermal pressure. Since our flows are subsonic near the massive black holes, distributed cooling continues within similar to 300 pc. Dark, low-mass stars formed in this region may be responsible for some of the mass attributed to central black holes.

引用

页码：L89 / L92

页数：4

共 21 条

[1]

Braine J, 1997, ASTRON ASTROPHYS, V321, P765

[2] H-I IN GIANT ELLIPTICAL GALAXIES WITH COOLING FLOWS [J].

BREGMAN, JN ;

ROBERTS, MS ;

GIOVANELLI, R .

ASTROPHYSICAL JOURNAL, 1988, 330 (02) :L93-L96

[3] Evolution of hot gas and dark halos in group-dominant elliptical galaxies: Influence of cosmic inflow [J].

Brighenti, F ;

Mathews, WG .

ASTROPHYSICAL JOURNAL, 1999, 512 (01) :65-78

[4] Structure and evolution of interstellar gas in flattened, rotating elliptical galaxies [J].

Brighenti, F ;

Mathews, WG .

ASTROPHYSICAL JOURNAL, 1996, 470 (02) :747-761

[5] X-ray observations and the structure of elliptical galaxies [J].

Brighenti, F ;

Mathews, WG .

ASTROPHYSICAL JOURNAL, 1997, 486 (02) :L83-L86

[6]

BRIGHENTI F, 1999, UNPUB APJ

[7]

Cappellaro E, 1997, ASTRON ASTROPHYS, V322, P431

[8] Cooling flows and quasars: Different aspects of the same phenomenon .1. Concepts [J].

Ciotti, L ;

Ostriker, JP .

ASTROPHYSICAL JOURNAL, 1997, 487 (02) :L105-L108

[9] The centers of early-type galaxies with HST .4. Central parameter relations [J].

Faber, SM ;

Tremaine, S ;

Ajhar, EA ;

Byun, YI ;

Dressler, A ;

Gebhardt, K ;

Grillmair, C ;

Kormendy, J ;

Lauer, TR ;

Richstone, D .

ASTRONOMICAL JOURNAL, 1997, 114 (05) :1771-1796

[10] EINSTEIN (HEAO-2) X-RAY-OBSERVATORY [J].

GIACCONI, R ;

BRANDUARDI, G ;

BRIEL, U ;

EPSTEIN, A ;

FABRICANT, D ;

FEIGELSON, E ;

FORMAN, W ;

GORENSTEIN, P ;

GRINDLAY, J ;

GURSKY, H ;

HARNDEN, FR ;

HENRY, JP ;

JONES, C ;

KELLOGG, E ;

KOCH, D ;

MURRAY, S ;

SCHREIER, E ;

SEWARD, F ;

TANANBAUM, H ;

TOPKA, K ;

VANSPEYBROECK, L ;

HOLT, SS ;

BECKER, RH ;

BOLDT, EA ;

SERLEMITSOS, PJ ;

CLARK, G ;

CANIZARES, C ;

MARKERT, T ;

NOVICK, R ;

HELFAND, D ;

LONG, K .

ASTROPHYSICAL JOURNAL, 1979, 230 (02) :540-550

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