Facial reconstruction

Search LJMU Research Online

Browse Repository | Browse E-Theses

Galaxy and Mass Assembly (GAMA): maximum likelihood determination of the luminosity function and its evolution

Loveday, J and Norberg, P and Baldry, IK and Bland-Hawthorn, J and Brough, S and Brown, MJI and Driver, SP and Kelvin, LS and Phillipps, S (2015) Galaxy and Mass Assembly (GAMA): maximum likelihood determination of the luminosity function and its evolution. Monthly Notices of the Royal Astronomical Society, 451 (2). pp. 1540-1552. ISSN 1365-2966

WarningThere is a more recent version of this item available.
[img] Text
1505.01003v1.pdf - Accepted Version

Download (1MB)

Abstract

We describe modifications to the joint stepwise maximum likelihood method of Cole (2011) in order to simultaneously fit the GAMA-II galaxy luminosity function (LF), corrected for radial density variations, and its evolution with redshift. The whole sample is reasonably well-fit with luminosity (Qe) and density (Pe) evolution parameters Qe, Pe = 1.0, 1.0 but with significant degeneracies characterized by Qe = 1.4 - 0.4Pe. Blue galaxies exhibit larger luminosity density evolution than red galaxies, as expected. We present the evolution-corrected r-band LF for the whole sample and for blue and red sub-samples, using both Petrosian and Sersic magnitudes. Petrosian magnitudes miss a substantial fraction of the flux of de Vaucouleurs profile galaxies: the Sersic LF is substantially higher than the Petrosian LF at the bright end.

Item Type: Article
Additional Information: This is a pre-copyedited, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of record MNRAS (August 01, 2015) 451 (2): 1540-1552. is available online at: http://dx.doi.org/10.1093/mnras/stv1013
Uncontrolled Keywords: astro-ph.GA; astro-ph.GA
Subjects: Q Science > QB Astronomy
Divisions: Astrophysics Research Institute
Publisher: Oxford University Press
Related URLs:
Date Deposited: 14 May 2015 10:53
Last Modified: 09 Sep 2015 13:20
DOI or Identification number: 10.1093/mnras/stv1013
URI: http://researchonline.ljmu.ac.uk/id/eprint/1067

Available Versions of this Item

Actions (login required)

View Item View Item