ATTENZIONE! IL REPOSITORY E’ APERTO ESCLUSIVAMENTE ALL’IMMISSIONE DEI RAPPORTI TECNICI (COLLEZIONE 4.01). NON E’ POSSIBILE INSERIRE PRODOTTI IN TUTTE LE ALTRE COLLEZIONI, A CAUSA DI PROBLEMI TECNICI. THE REPOSITORY IS OPEN EXCLUSIVELY FOR THE SUBMISSION OF TECHNICAL REPORTS (COLLECTION 4.01). SUBMISSIONS TO ALL OTHER COLLECTIONS ARE TEMPORARILY UNAVAILABLE, DUE TO TECHNICAL ISSUES.
 

An over-massive black hole in a typical star-forming galaxy, 2 billion years after the Big Bang

Journal
Date Issued
2015
Author(s)
Trakhtenbrot, Benny
•
Urry, C. Megan
•
Civano, Francesca
•
Rosario, David J.
•
Elvis, Martin
•
Schawinski, Kevin
•
Suh, Hyewon
•
•
Simmons, Brooke D.
DOI
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.
Volume
349
Issue
6244
Start page
168
Uri
Url
Issn Identifier
0036-8075
Ads BibCode
2015Sci...349..168T
Rights
open.access
File(s)
Loading...
Thumbnail Image
Name

Trakhtenbrot2015_arXiv.pdf

Description
postprint
Size

2.06 MB

Format

Adobe PDF

Checksum (MD5)

3cba242bd11006bafae6f77e7d2bc158

Loading...
Thumbnail Image
Name

Trakhtenbrot2015.pdf

Description
[administrators only]
Size

385.96 KB

Format

Adobe PDF

Checksum (MD5)

463415bb1a5445603a6c26df5e8c37d8