Low-frequency gravitational waves from supermassive black holes | Zendy

Martin G. Haehnelt | Zendy

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Low-frequency gravitational waves from supermassive black holes

Author(s) -

Martin G. Haehnelt

Publication year - 1994

Publication title -

monthly notices of the royal astronomical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.058

H-Index - 383

eISSN - 1365-8711

pISSN - 0035-8711

DOI - 10.1093/mnras/269.1.199

Subject(s) - physics , supermassive black hole , astrophysics , astronomy , gravitational wave , population , quasar , intermediate mass black hole , binary black hole , spin flip , galaxy , demography , sociology

Supermassive black holes are investigated as possible sources forlow-frequency bursts of gravity waves. The event rate for `known' supermassiveblack holes at intermediate and high redshifts, inferred from the quasarluminosity function, is low $\sim 0.1 \yr^{-1}$. A space-based interferometercould therefore only see several events per year from supermassive black holesif an additional population of supermassive black holes existed and emittedgravitational waves efficiently. These might reside in the population of dwarfgalaxies or in a transient population of small dark matter haloes that havemostly merged into larger haloes hosting the galaxies seen today. The proposedspace-based gravitational-wave interferometer LISA/SAGITTARIUS should detectmost gravitational-wave events involving supermassive black holes above $10^{4}\Msol$ out to redshifts of $z \sim 100$.Comment: 18 pages (including 5 Figures), uuencoded postscript fil

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