Previous | Session 62 | Next | Author Index | Block Schedule
C. T. Liu (City Univ. of New York/College of Staten Island), T. A. D. Paglione (City Univ. of New York/York College), S. Tribiano (City Univ. of New York/BMCC), N. D. Tyson (AMNH), COSMOS Collaboration
We present the luminosity function (LF) of starburst galaxies with redshift z < 0.3, using a sample of 12,785 strongly star-forming (spectral type Sc or bluer) galaxies with robust photometric redshift measurements from the COSMOS two square degree survey. We use a modified maximum likelihood method to account for uncertainty in the photometric redshifts, and employ a bootstrapping technique to account for any systematic errors introduced. The LF is characterized by a Schechter function with a very steep faint end slope of \alpha = -1.8 +/- 0.1 for the redshift bin 0.02 < z < 0.15 down to M(v) = -13, and for 0.15 < z < 0.30 down to M(v) = -15. We characterize the morphology distribution of faint starburst galaxies in this low redshift range, in terms of the fraction of compact (nucleated), irregular, and low surface-brightness galaxies respectively.
We gratefully acknowledge support from NASA via grant HST-GO-09822 to the City University of New York, and from the City University of New York CIRG grant program.
If you would like more information about this abstract, please follow the link to http://cosmos.astro.caltech.edu. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.
The author(s) of this abstract have provided an email address for comments about the abstract: firstname.lastname@example.org
Previous | Session 62 | Next
Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.