ULTRA-CLOSE ENCOUNTERS OF STARS WITH MASSIVE BLACK HOLES: TIDAL DISRUPTION EVENTS WITH PROMPT HYPERACCRETION

被引：28

作者：

Evans, Christopher ^{[1
,2
]}

Laguna, Pablo ^{[1
,2
]}

Eracleous, Michael ^{[1
,2
,3
,4
]}

机构：

[1] Georgia Inst Technol, Ctr Relativist Astrophys, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA

[3] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA

[4] Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2015年 / 805卷 / 02期

基金：

美国国家科学基金会;

关键词：

accretion; accretion disks; stars: black holes; ACCRETION DISKS; WHITE-DWARFS; FLARE; SIMULATIONS; EVOLUTION; JET;

D O I：

10.1088/2041-8205/805/2/L19

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A bright flare from a galactic nucleus followed at late times by a t(-5/3) decay in luminosity is often considered the signature of the complete tidal disruption of a star by a massive black hole. The flare and power-law decay are produced when the stream of bound debris returns to the black hole, self-intersects, and eventually forms an accretion disk or torus. In the canonical scenario of a solar-type star disrupted by a 10(6) M-circle dot black hole, the time between the disruption of the star and the formation of the accretion torus could be years. We present fully general relativistic simulations of a new class of tidal disruption events involving ultra-close encounters of solar-type stars with intermediate mass black holes. In these encounters, a thick disk forms promptly after disruption, on timescales of hours. After a brief initial flare, the accretion rate remains steady and highly super-Eddington for a few days at similar to 10(2) M-circle dot yr(-1).

引用

页数：6

共 47 条

[1] A CONTINUUM OF H- TO He-RICH TIDAL DISRUPTION CANDIDATES WITH A PREFERENCE FOR E plus A GALAXIES [J].

Arcavi, Iair ;

Gal-Yam, Avishay ;

Sullivan, Mark ;

Pan, Yen-Chen ;

Cenko, S. Bradley ;

Horesh, Assaf ;

Ofek, Eran O. ;

De Cia, Annalisa ;

Yan, Lin ;

Yang, Chen-Wei ;

Howell, D. A. ;

Tal, David ;

Kulkarni, Shrinivas R. ;

Tendulkar, Shriharsh P. ;

Tang, Sumin ;

Xu, Dong ;

Sternberg, Assaf ;

Cohen, Judith G. ;

Bloom, Joshua S. ;

Nugent, Peter E. ;

Kasliwal, Mansi M. ;

Perley, Daniel A. ;

Quimby, Robert M. ;

Miller, Adam A. ;

Theissen, Christopher A. ;

Laher, Russ R. .

ASTROPHYSICAL JOURNAL, 2014, 793 (01)

[2] DISRUPTION OF A RED GIANT STAR BY A SUPERMASSIVE BLACK HOLE AND THE CASE OF PS1-10jh [J].

Bogdanovic, Tamara ;

Cheng, Roseanne M. ;

Amaro-Seoane, Pau .

ASTROPHYSICAL JOURNAL, 2014, 788 (02)

[3]

Bonnerot C., 2015, MNRAS UNPUB

[4] Relativistic jet activity from the tidal disruption of a star by a massive black hole [J].

Burrows, D. N. ;

Kennea, J. A. ;

Ghisellini, G. ;

Mangano, V. ;

Zhang, B. ;

Page, K. L. ;

Eracleous, M. ;

Romano, P. ;

Sakamoto, T. ;

Falcone, A. D. ;

Osborne, J. P. ;

Campana, S. ;

Beardmore, A. P. ;

Breeveld, A. A. ;

Chester, M. M. ;

Corbet, R. ;

Covino, S. ;

Cummings, J. R. ;

D'Avanzo, P. ;

D'Elia, V. ;

Esposito, P. ;

Evans, P. A. ;

Fugazza, D. ;

Gelbord, J. M. ;

Hiroi, K. ;

Holland, S. T. ;

Huang, K. Y. ;

Im, M. ;

Israel, G. ;

Jeon, Y. ;

Jeon, Y. -B. ;

Jun, H. D. ;

Kawai, N. ;

Kim, J. H. ;

Krimm, H. A. ;

Marshall, F. E. ;

Meszaros, P. ;

Negoro, H. ;

Omodei, N. ;

Park, W. -K. ;

Perkins, J. S. ;

Sugizaki, M. ;

Sung, H. -I. ;

Tagliaferri, G. ;

Troja, E. ;

Ueda, Y. ;

Urata, Y. ;

Usui, R. ;

Antonelli, L. A. ;

Barthelmy, S. D. .

NATURE, 2011, 476 (7361) :421-424

[5]

BURROWS DN, 1992, APJ, V385, P94

[6] ACCRETION DISKS IN ACTIVE GALACTIC NUCLEI - VERTICALLY EXPLICIT MODELS [J].

CANNIZZO, JK .

ASTROPHYSICAL JOURNAL, 1992, 385 (01) :94-107

[7] THE DISK ACCRETION OF A TIDALLY DISRUPTED STAR ONTO A MASSIVE BLACK-HOLE [J].

CANNIZZO, JK ;

LEE, HM ;

GOODMAN, J .

ASTROPHYSICAL JOURNAL, 1990, 351 (01) :38-46

[8] SWIFT J2058.4+0516: DISCOVERY OF A POSSIBLE SECOND RELATIVISTIC TIDAL DISRUPTION FLARE? [J].

Cenko, S. Bradley ;

Krimm, Hans A. ;

Horesh, Assaf ;

Rau, Arne ;

Frail, Dale A. ;

Kennea, Jamie A. ;

Levan, Andrew J. ;

Holland, Stephen T. ;

Butler, Nathaniel R. ;

Quimby, Robert M. ;

Bloom, Joshua S. ;

Filippenko, Alexei V. ;

Gal-Yam, Avishay ;

Greiner, Jochen ;

Kulkarni, S. R. ;

Ofek, Eran O. ;

Olivares, Felipe E. ;

Schady, Patricia ;

Silverman, Jeffrey M. ;

Tanvir, Nial R. ;

Xu, Dong .

ASTROPHYSICAL JOURNAL, 2012, 753 (01)

[9] Tidal disruption of a star in the Schwarzschild spacetime: Relativistic effects in the return rate of debris [J].

Cheng, Roseanne M. ;

Bogdanovic, Tamara .

PHYSICAL REVIEW D, 2014, 90 (06)

[10] THE ULTRAVIOLET-BRIGHT, SLOWLY DECLINING TRANSIENT PS1-11af AS A PARTIAL TIDAL DISRUPTION EVENT [J].

Chornock, R. ;

Berger, E. ;

Gezari, S. ;

Zauderer, B. A. ;

Rest, A. ;

Chomiuk, L. ;

Kamble, A. ;

Soderberg, A. M. ;

Czekala, I. ;

Dittmann, J. ;

Drout, M. ;

Foley, R. J. ;

Fong, W. ;

Huber, M. E. ;

Kirshner, R. P. ;

Lawrence, A. ;

Lunnan, R. ;

Marion, G. H. ;

Narayan, G. ;

Riess, A. G. ;

Roth, K. C. ;

Sanders, N. E. ;

Scolnic, D. ;

Smartt, S. J. ;

Smith, K. ;

Stubbs, C. W. ;

Tonry, J. L. ;

Burgett, W. S. ;

Chambers, K. C. ;

Flewelling, H. ;

Hodapp, K. W. ;

Kaiser, N. ;

Magnier, E. A. ;

Martin, D. C. ;

Neill, J. D. ;

Price, P. A. ;

Wainscoat, R. .

ASTROPHYSICAL JOURNAL, 2014, 780 (01)

← 1 2 3 4 5 →