Destruction of the central black hole gas reservoir through head-on galaxy collisions
Destruction of the central black hole gas reservoir through head-on galaxy collisions
复制标题
正面星系碰撞破坏中央黑洞气藏
DOI:
10.1038/s41550-020-01286-9
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发表时间:
2021
期刊:
影响因子:
14.1
通讯作者:
Kawaguchi Toshihiro
中科院分区:
文献类型:
--
作者:
Miki Yohei;Mori Masao;Kawaguchi Toshihiro
A massive black hole exists in almost every galaxy. Black holes occasionally radiate a vast amount of light by releasing gravitational energy of accreting gas with a cumulative active period of only a few 108yr, the so-called duty cycle of the active galactic nuclei. Many galaxies today host a starving massive black hole. Although galaxy collisions have been thought to enhance nucleus activity,, the origin of the duty cycle, especially the shutdown process, is still a critical issue. Here, we show that galaxy collisions are also capable of suppressing black hole fuelling, by using an analytic model and three-dimensional hydrodynamic simulations and by applying the well-determined parameter sets for the galactic collision in the Andromeda galaxy,. Our models demonstrate that a central collision of galaxies can strip the torus-shaped gas surrounding the massive black hole, the putative fuelling source. The derived condition for switching off the black hole fuelling indicates that a notable fraction of currently bright nuclei can become inactive, which is reminiscent of the fading or dying active nucleus phenomena, , –that are associated with galaxy merging events. Galaxy collisions may therefore be responsible for both switching off and turning on the nucleus activity, depending on the collision orbit (head-on or far-off-centre).
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DOI:
10.3847/1538-4357/ac09e8
发表时间:
2020-08
期刊:
The Astrophysical Journal
影响因子:
--
作者:
D. Anglés-Alcázar;E. Quataert;P. Hopkins;R. Somerville;C. Hayward;C. Faucher-Giguère;G. Bryan;D. Keres̆;L. Hernquist;J. Stone
通讯作者:
D. Anglés-Alcázar;E. Quataert;P. Hopkins;R. Somerville;C. Hayward;C. Faucher-Giguère;G. Bryan;D. Keres̆;L. Hernquist;J. Stone
影响因子:
2.3
作者:
Rika Okada;J. Fukue;R. Matsumoto
通讯作者:
R. Matsumoto
DOI:
10.1086/166505
发表时间:
1988
期刊:
The Astrophysical Journal
影响因子:
--
作者:
K. Tomisaka;S. Ikeuchi
通讯作者:
S. Ikeuchi
DOI:
--
发表时间:
2002
期刊:
The Astrophysical Journal 567
影响因子:
--
作者:
Yoshida;M.
通讯作者:
M.
DOI:
10.3847/1538-4357/835/2/256
发表时间:
2016-12
期刊:
The Astrophysical Journal
影响因子:
--
作者:
W. Keel;C. Lintott;W. Maksym;V. Bennert;S. Chojnowski;A. Moiseev;A. Smirnova;K. Schawinski;L. Sartori;C. Urry;A. Pancoast;M. Schirmer;B. Scott;Charles Showley;K. Flatland
通讯作者:
W. Keel;C. Lintott;W. Maksym;V. Bennert;S. Chojnowski;A. Moiseev;A. Smirnova;K. Schawinski;L. Sartori;C. Urry;A. Pancoast;M. Schirmer;B. Scott;Charles Showley;K. Flatland