Comparison Of UV And H-alpha SFR Indicators At Intermediate Redshift: Extraction Of H-alpha Fluxes From Near-IR Narrowband Imaging

Details Comparison Of UV And H-alpha SFR Indicators At Intermediate Redshift: Extraction Of H-alpha Fluxes From Near-IR Narrowband Imaging Comparison Of UV And H-alpha SFR Indicators At Intermediate Redshift: Extraction Of H-alpha Fluxes From Near-IR Narrowband Imaging

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.8903e&link_type=abstract

American Astronomical Society, AAS Meeting #211, #89.03; Bulletin of the American Astronomical Society, Vol. 39, p.878

Astronomy and Astrophysics

Astronomy

Scientific paper

We present preliminary results of an on-going study of the systematics between two commonly used star formation rate (SFR) indicators, UV and H-alpha emission at z 0.8. This poster reports on the measurement of emission-line fluxes from new H-alpha near-IR narrowband imaging in the Extended Groth Strip (EGS), while a companion poster describes the extraction of UV fluxes from ultra-deep GALEX data taken in the same area. Two narrowband filters centered on 1113 and 1184 nm were used to image the EGS in 32 different pointings. The data were taken with the PISCES near-IR imager at the Steward Observatory Bok 2.3m Telescope. Catalogs were produced using Source Extractor and cross-correlated with the DEEP2 redshift dataset to identify true H-alpha emitters in the redshift windows of our filters. The SFR of these galaxies were computed and compared to the SFR computed by GALEX UV photometry.
Esselman'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.

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