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pro vyhledávání: '"643"'
Autor:
Bek, Pavel, 1975-
Autor:
Russell, H. R., Nulsen, P. E. J., Fabian, A. C., Braben, T. E., Brandt, W. N., Clews, L., McDonald, M., Reynolds, C. S., Sanders, J. S., Veilleux, S.
H1821+643 is the nearest quasar hosted by a galaxy cluster. The energy output by the quasar, in the form of intense radiation and radio jets, is captured by the surrounding hot atmosphere. Here we present a new deep Chandra observation of H1821+643 a
Externí odkaz:
http://arxiv.org/abs/2401.03022
Akademický článek
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Autor:
Paynter, James, Thrane, Eric
The remnants of binary black hole mergers can be given recoil kick velocities up to $5,000\text{ km s$^{-1}$}$ due to anisotropic emission of gravitational waves. E1821+643 is a recoiling supermassive black hole moving at $\sim 2,100\text{ km s$^{-1}
Externí odkaz:
http://arxiv.org/abs/2210.03267
Autor:
Fukuchi, Hikaru, Ichikawa, Kohei, Akiyama, Masayuki, Ricci, Claudio, Chon, Sunmyon, Kokubo, Mitsuru, Liu, Ang, Hashimoto, Takuya, Izumi, Takuma
H1821+643 is the most X-ray luminous non-beamed AGN of $L_\mathrm{14-150 keV}= 5.2\times 10^{45}$ erg s$^{-1}$ in the Swift/BAT ultra-hard X-ray survey and it is also a hyper-luminous infrared (IR) galaxy $L_\mathrm{IR} = 10^{13.2} L_\odot$ residing
Externí odkaz:
http://arxiv.org/abs/2209.09255
Autor:
Garofalo, David, Singh, Chandra B.
Publikováno v:
Publications of the Astronomical Society of the Pacific 2022
The moderate spin estimate for the black hole at the center of the cool core cluster H1821+643 motivates the completion of a story about this object's origin and evolution that was in the making since the work by Blundell and Rawlings over two decade
Externí odkaz:
http://arxiv.org/abs/2209.01964
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 515, Issue 3, September 2022, Pages 3319-3335
The most luminous quasars are created by major, gas-rich mergers and E1821+643, an optically luminous quasar situated at the center of a cool-core cluster, appears to be in the late stages of the post-merger blowout phase. This quasar is also identif
Externí odkaz:
http://arxiv.org/abs/2208.03418
Akademický článek
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Publikováno v:
MNRAS, 514, 2568 - 2580 (2022)
We present an analysis of deep $Chandra$ Low-Energy and High-Energy Transmission Grating archival observations of the extraordinarily luminous radio-quiet quasar H1821+643, hosted by a rich and massive cool-core cluster at redshift $z=0.3$. These dat
Externí odkaz:
http://arxiv.org/abs/2205.12974