THE BLACK HOLE MASS FUNCTION DERIVED FROM LOCAL SPIRAL GALAXIES
نویسندگان
چکیده
منابع مشابه
The Local Black Hole Mass Function from 2dFGRS Radio Galaxies
Radio emission from early–type (E and S0) galaxies usually signals the presence of a central supermassive black hole. If radio luminosity and black–hole mass are correlated, then we can use the large sample of radio galaxies observed in the 2dF Galaxy Redshift Survey (2dFGRS) to estimate the local (z < 0.1) black–hole mass function for early–type galaxies. Integrating over this mass function yi...
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We present Hubble Space Telescope imaging and spectroscopic observations of three Brightest Cluster Galaxies, Abell 1836-BCG, Abell 2052-BCG, and Abell 3565-BCG, obtained with the Wide Field and Planetary Camera 2, the Advanced Camera for Surveys and the Space Telescope Imaging Spectrograph. The data provide detailed information on the structure and mass profile of the stellar component, the du...
متن کاملConstraints on mass ejection in black hole formation derived from black hole X-ray binaries
Both the recently observed high runaway velocities of Cyg X-1 (∼ 50 km s) and X-ray Nova Sco 1994 (≥ 100 km s) and the relatively low radial velocities of the black hole X-ray binaries with low mass donor stars, can be explained by symmetric mass ejection in the supernovae (SNe) which formed the black holes in these systems. Assuming symmetric mass ejection in black hole formation, we estimate ...
متن کاملThe mass function of young star clusters in spiral galaxies
Aims. The initial cluster mass function (ICMF) in spiral discs is constrained and compared with data for old globular clusters and young clusters in starbursts. Methods. For a given absolute magnitude, the cluster age distribution depends on the ICMF. Here, the behaviour of the median agemagnitude relation is analysed in detail for Schechter ICMFs with various cut-off masses, Mc. The calculated...
متن کاملLetter to the Editor Constraints on mass ejection in black hole formation derived from black hole X-ray binaries
Both the recently observed high runaway velocities of Cyg X-1 (∼ 50 km s−1) and X-ray Nova Sco 1994 (≥ 100 km s−1) and the relatively low radial velocities of the black hole X-ray binaries with low mass donor stars, can be explained by symmetric mass ejection in the supernovae (SNe) which formed the black holes in these systems. Assuming symmetric mass ejection in black hole formation, we estim...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2014
ISSN: 0004-637X,1538-4357
DOI: 10.1088/0004-637x/789/2/124