Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21342403w&link_type=abstract
American Astronomical Society, AAS Meeting #213, #424.03; Bulletin of the American Astronomical Society, Vol. 41, p.246
Astronomy and Astrophysics
Astronomy
Scientific paper
We present results of a study which directly compares star formation rates (SFRs) based on two commonly used indicators, the UV non-ionizing continuum and H-alpha nebular emission, for star-forming galaxies at z 0.8. Using UV data from the GALEX ultra-deep imaging survey in the Extended Groth Strip (EGS), Hubble Deep Field North (HDFN), and COSMOS fields, we construct a PSF-based UV flux catalog, which effectively deals with object blending. In the EGS and HDFN regions, we extract H-alpha fluxes from new near-IR (NIR) narrowband imaging observations obtained with the PISCES NIR camera on the 2.3m Bok telescope on Kitt Peak. For the COSMOS field, H-alpha fluxes are extracted from new NIR narrowband imaging observations taken with the NEWFIRM NIR camera on the Kitt Peak 4m. From the rest-frame far-UV flux and UV slope, we calculate dust-corrected UV SFRs. We also calculate SFRs from H-alpha fluxes, corrected for 1 magnitude of extinction. For galaxies at z 0.8, we examine the correlation between dust-corrected UV and H-alpha SFRs, and compare with previous results at lower redshifts. Walton's research was supported by the NOAO/KPNO Research Experiences for Undergraduates (REU) Program which is funded by the National Science Foundation through Scientific Program Order No. 3 (AST-0243875) of the Cooperative Agreement No. AST-0132798 between the Association of Universities for Research in Astronomy (AURA) and the NSF, and The Observatories of the Carnegie Institute of Washington.
Dale Daniel
Finn Robert
Kennefick Julia
Kulesa Craig
Lee Julian
No associations
LandOfFree
A Comparison of UV and Hα Star Formation Rates In Intermediate Redshift Galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A Comparison of UV and Hα Star Formation Rates In Intermediate Redshift Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Comparison of UV and Hα Star Formation Rates In Intermediate Redshift Galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1702773