Details

Autor(en) / Beteiligte

• Davis, Benjamin L
• Berrier, Joel C
• Johns, Lucas
• Shields, Douglas W
• Hartley, Matthew T
• Kennefick, Daniel
• Kennefick, Julia
• SEIGAR, MARC S
• Lacy, Claud H S

Titel

THE BLACK HOLE MASS FUNCTION DERIVED FROM LOCAL SPIRAL GALAXIES

Ist Teil von

• The Astrophysical journal, 2014-07, Vol.789 (2), p.1-16

Ort / Verlag

United States

Erscheinungsjahr

2014

Quelle

Electronic Journals Library

Beschreibungen/Notizen

• We present our determination of the nuclear supermassive black hole (SMBH) mass function for spiral galaxies in the local universe, established from a volume-limited sample consisting of a statistically complete collection of the brightest spiral galaxies in the southern ([delta] < 0]degrees]) hemisphere. The sample is defined by a limiting luminosity (redshift-independent) distance, D sub(L) = 25.4 Mpc (z = 0.00572) and a limiting absolute B-band magnitude, M sub(B) = -19.12. We then use an established relationship between the logarithmic spiral arm pitch angle and the mass of the central SMBH in a host galaxy in order to estimate the mass of the 128 respective SMBHs in this volume-limited sample. This result effectively gives us the distribution of mass for SMBHs residing in spiral galaxies over a lookback time, t sub(L) [< or =, slant] 82.1 h super(-1) sub(67.77) Myr and contained within a comoving volume, V sub(C) = 3.37 x 10 super(4) h super(-3) sub(67.77) M sub([middot in circle]) Mpc super(-3).