Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21541205m&link_type=abstract
American Astronomical Society, AAS Meeting #215, #412.05; Bulletin of the American Astronomical Society, Vol. 42, p.247
Astronomy and Astrophysics
Astronomy
Scientific paper
Spectroscopic redshift determinations of dusty, high redshift galaxies (e.g. submillimeter galaxies) are challenging due to their faintness at optical wavelengths and, thus, the large amount of telescope time required. These factors drive the need for alternative methods of redshift determination. A promising avenue for creating such a method involves using the 1.6 μm stellar bump of dusty, star-forming galaxies. Using a large sample of submillimeter galaxies and Spitzer-selected dusty galaxies with spectroscopic redshifts, we developed a new technique for estimating photometric redshifts which does not rely on the use of templates. These redshift estimates depend solely on the Spitzer IRAC+MIPS fluxes and, therefore, can be applied to large submillimeter surveys with these data. In particular, we applied our method to the submillimeter galaxies in the SHADES survey and the Dust Obscured Galaxies (DOGs) in the Boötes field. Our method has shown itself to be a quick, easy, and inexpensive way to obtain photometric redshifts for dusty, high redshift galaxies. This project was supported by the NOAO/KPNO Research Experiences for Undergraduates (REU) Program which is funded by the National Science Foundation Research Experiences for Undergraduates Program and the Department of Defense ASSURE program through Scientific Program Order No. 13 (AST-0754223) of the Cooperative Agreement No. AST-0132798 between the Association of Universities for Research in Astronomy (AURA) and the NSF.
Dey Arjun
Messenger Stephen J.
Pope Adrian
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