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Search: L773:0035 8711 OR L773:1365 2966 OR L773:1745 3925 OR L773:1745 3933 > (2005-2009) > Possible evidence f...

Possible evidence for the ejection of a supermassive black hole from an ongoing merger of galaxies

Haehnelt, MG (author)
Davies, Melvyn B (author)
Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science
Rees, MJ (author)
 (creator_code:org_t)
Oxford University Press (OUP), 2006
2006
English.
In: Monthly Notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 1365-2966 .- 1745-3925 .- 1745-3933. ; 366:1, s. 22-25
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Attempts of Magain et al. to detect the host galaxy of the bright quasi-stellar object (QSO) HE0450-2958 have not been successful. We suggest that the supermassive black hole (SMBH) powering the QSO was ejected from the observed ultraluminous infrared galaxy (ULIRG) at the same redshift and at 1.5 arcsec distance. Ejection could have been caused either by recoil due to gravitational wave emission from a coalescing binary of SMBHs or the gravitational slingshot of three or more SMBHs in the ongoing merger of galaxies which triggered the starburst activity in the ULIRG. We discuss implications for the possible hierarchical build-up of SMBHs from intermediate and/or stellar mass black holes, and for the detection of coalescing supermassive binary black holes by LISA.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

galaxies : nuclei
general
binaries
celestial mechanics
black hole physics
stellar dynamics

Publication and Content Type

art (subject category)
ref (subject category)

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Haehnelt, MG
Davies, Melvyn B
Rees, MJ
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