Supermassive black holes (SMBHs) and their host galaxies are generally
thought to coevolve, so that the SMBH achieves up to about 0.2 to 0.5% of the
host galaxy mass in the present day. The radiation emitted from the growing
SMBH is expected to affect star formation throughout the host galaxy. The
relevance of this scenario at early cosmic epochs is not yet established. We
present spectroscopic observations of a galaxy at redshift z = 3.328, which
hosts an actively accreting, extremely massive BH, in its final stages of
growth. The SMBH mass is roughly one-tenth the mass of the entire host galaxy,
suggesting that it has grown much more efficiently than the host, contrary to
models of synchronized coevolution. The host galaxy is forming stars at an
intense rate, despite the presence of a SMBH-driven gas outflow.
Description
[1507.02290] An Over-Massive Black Hole in a Typical Star-Forming Galaxy, 2 Billion Years After the Big Bang
%0 Generic
%1 trakhtenbrot2015overmassive
%A Trakhtenbrot, Benny
%A Urry, C. Megan
%A Civano, Francesca
%A Rosario, David J.
%A Elvis, Martin
%A Schawinski, Kevin
%A Suh, Hyewon
%A Bongiorno, Angela
%A Simmons, Brooke D.
%D 2015
%K accretion black evolution holes host
%T An Over-Massive Black Hole in a Typical Star-Forming Galaxy, 2 Billion
Years After the Big Bang
%U http://arxiv.org/abs/1507.02290
%X Supermassive black holes (SMBHs) and their host galaxies are generally
thought to coevolve, so that the SMBH achieves up to about 0.2 to 0.5% of the
host galaxy mass in the present day. The radiation emitted from the growing
SMBH is expected to affect star formation throughout the host galaxy. The
relevance of this scenario at early cosmic epochs is not yet established. We
present spectroscopic observations of a galaxy at redshift z = 3.328, which
hosts an actively accreting, extremely massive BH, in its final stages of
growth. The SMBH mass is roughly one-tenth the mass of the entire host galaxy,
suggesting that it has grown much more efficiently than the host, contrary to
models of synchronized coevolution. The host galaxy is forming stars at an
intense rate, despite the presence of a SMBH-driven gas outflow.
@misc{trakhtenbrot2015overmassive,
abstract = {Supermassive black holes (SMBHs) and their host galaxies are generally
thought to coevolve, so that the SMBH achieves up to about 0.2 to 0.5% of the
host galaxy mass in the present day. The radiation emitted from the growing
SMBH is expected to affect star formation throughout the host galaxy. The
relevance of this scenario at early cosmic epochs is not yet established. We
present spectroscopic observations of a galaxy at redshift z = 3.328, which
hosts an actively accreting, extremely massive BH, in its final stages of
growth. The SMBH mass is roughly one-tenth the mass of the entire host galaxy,
suggesting that it has grown much more efficiently than the host, contrary to
models of synchronized coevolution. The host galaxy is forming stars at an
intense rate, despite the presence of a SMBH-driven gas outflow.},
added-at = {2015-07-10T09:47:02.000+0200},
author = {Trakhtenbrot, Benny and Urry, C. Megan and Civano, Francesca and Rosario, David J. and Elvis, Martin and Schawinski, Kevin and Suh, Hyewon and Bongiorno, Angela and Simmons, Brooke D.},
biburl = {https://www.bibsonomy.org/bibtex/26e43ef3b6347685e6bd9c5c8e6c8544a/miki},
description = {[1507.02290] An Over-Massive Black Hole in a Typical Star-Forming Galaxy, 2 Billion Years After the Big Bang},
interhash = {323d1837147e57488bbc060ce1ea902c},
intrahash = {6e43ef3b6347685e6bd9c5c8e6c8544a},
keywords = {accretion black evolution holes host},
note = {cite arxiv:1507.02290Comment: Author's version, including the main paper and the Supplementary Materials (16+21 pages, 3+3 figures)},
timestamp = {2015-07-10T09:47:02.000+0200},
title = {An Over-Massive Black Hole in a Typical Star-Forming Galaxy, 2 Billion
Years After the Big Bang},
url = {http://arxiv.org/abs/1507.02290},
year = 2015
}