Journal article

Constraining the quasar population with the broad-line width distribution

Abstract:

We measure the width of the MgII $\lambda2799$ line in quasar spectra from the SDSS, 2QZ and 2SLAQ surveys and, by invoking an unnormalised virial mass estimator, relate the scatter in line width to the scatter in mass in the underlying black hole population. We find conclusive evidence for a trend such that there is less scatter in line width, and hence black hole mass, in more luminous objects. However, the most luminous objects in our sample show such a low degree of scatter in line widt...

Publication status:
Published

Authors

Journal:
Monthly Notices of the Royal Astronomical Society
Volume:
390
Issue:
4
Pages:
1413-1429
Publication date:
2008-07-08
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
Source identifiers:
6298
Language:
English
Keywords:
Pubs id:
pubs:6298
UUID:
uuid:3cca72bc-d366-4e4b-aed0-d58666b3bcd0
Local pid:
pubs:6298
Deposit date:
2012-12-19