Other
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21942902s&link_type=abstract
American Astronomical Society, AAS Meeting #219, #429.02
Other
Scientific paper
We study the evolution of the relation between star-formation-rate (SFR) and stellar mass for high-redshift galaxies (3 ≤ z ≤ 7) using data from the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS). We describe a method to incorporate the effects of nebular line and continuum emission on updated stellar population synthesis models (Bruzual & Charlot 2011, in prep). We fit the multiwavelength photometry from CANDELS using these updated models over a range of stellar population parameters, including a range of star-formation histories with SFRs that both increase and decrease with time. From these fits we estimate the galaxy stellar masses and SFRs. We discuss the impact of models with nebular emission lines on the inferred stellar masses and SFRs, and we find that nebular emission lines reduce the derived stellar masses by as much as a factor of 3, in agreement with results from other studies. Using these fits, we quantify the SFR--stellar mass relation and study its evolution for galaxies at 3 ≤ z ≤ 7.
CANDELS Team
Finkelstein Steven L.
Papovich Casey
Salmon Brett W.
Tilvi Vithal
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