2011/03/09 by C. Power, Chris Power, K. Zubovas +4 · 26 citations
Physics and Astronomy · #Angular momentum #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Black hole (networking) #Bulge #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy formation and evolution #Gamma-ray bursts and supernovae #Physics #Quantum mechanics #Redshift #Sigma #Star (game theory) #Star formation #astro-ph.CO
paper · pdf · open access · doi:10.1111/j.1745-3933.2011.01048.x
published in Monthly Notices of the Royal Astronomical Society Letters 413(1), L110-L113 (Oxford University Press) · 6 pages, no figures, accepted for publication in MNRAS
arxiv created 2011/03/09 · openalex publication_date 2011/03/31 · arxiv updated 2015/05/27 · openalex created_date 2019/06/27 · openalex updated_date 2026/08/05
Abstract We show that star formation in galaxy bulges is self-regulating through momentum feedback, limiting the stellar bulge mass to Mb∝σ4. Together with a black hole mass MBH∝σ4 set by active galactic nucleus (AGN) momentum feedback, this produces a linear MBH–Mb relation. At low redshift this gives MBH/Mb∼ 10−3, close to the observed ratio. We show that AGN feedback can remove any remaining gas from the bulge and terminate star formation once the central black hole reaches the MBH–σ value, contrary to earlier claims. We find a mild upward deviation from the σ4 law at higher redshift and at higher σ.