A candidate supermassive binary black hole system in the brightest cluster galaxy of RBS 797
نویسندگان
چکیده
منابع مشابه
The Binary Nucleus in Vcc 128: a Candidate Supermassive Black Hole in a Dwarf Elliptical Galaxy
Hubble Space Telescope (HST) Wide Field Planetary Camera 2 (WFPC2) images of the Virgo Cluster dwarf elliptical galaxy VCC 128 reveal an apparently double nucleus. The two components, which are separated by ∼ 32 pc in projection, have the same magnitude and color. We present a spectrum of this double nucleus and show that it is inconsistent with one or both components being emission-line backgr...
متن کاملA Compact Supermassive Binary Black Hole System
We report on the discovery of a supermassive binary black hole system in the radio galaxy 0402+379, with a projected separation between the two black holes of just 7.3 pc. This is the closest black hole pair yet found by more than two orders of magnitude. These results are based upon recent multi-frequency observations using the Very Long Baseline Array (VLBA) which reveal two compact, variable...
متن کاملSupermassive black hole binary mergers
Massive merging black holes will be the primary sources of powerful gravitational waves at low frequency, and will permit to test General Relativity if we identify candidate galaxies that are close to a binary black hole merger. In this paper we show that for a typical range of mass ratios of the two black holes the final stage of the merger is preceded by a rapid precession and a subsequent sp...
متن کاملSupermassive binary black hole mergers
When galaxies collide, dynamical friction drives their central supermassive black holes close enought to each other such that gravitational radiation becomes the leading dissipative effect. Gravitational radiation takes away energy, momentum and angular momentum from the compact binary, such that the black holes finally merge. In the process, the spin of the dominant black hole is reoriented. O...
متن کاملA Supermassive Black Hole in the S0 Galaxy Ngc 3245
The S0 galaxy NGC 3245 contains a circumnuclear disk of ionized gas and dust with a radius of 1. 1 (or 110 pc), making it an ideal target for dynamical studies with the Hubble Space Telescope (HST ). We have obtained spectra of the nuclear disk with the Space Telescope Imaging Spectrograph, using an 0. 2-wide slit at five parallel positions. Measurements of the Hα and [N II] emission lines are ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2013
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201322401