TY - GEN
T1 - The star formation history of early-type galaxies
AU - Yi, Sukyoung K.
AU - Kaviraj, Sugata
AU - Schawinski, Kevin
PY - 2007/6
Y1 - 2007/6
N2 - The UV light is an effective tracer for young stars. Base on the recent GALEX UV data of nearby, bright early-type galaxies, we find that 30% of them show a UV flux that is too strong to explain without invoking a 1-3% (in total stellar mass) star formation rate in the last billion years. This implies that low-level residual star formation was common during the last few billion years even in bright, early-type galaxies. We discuss the implications for the formation and evolution of early-type galaxies. This article is a summary of our recent work (Yi et al. 2005; Schawinski et al. 2006; Kaviraj et al. 2006).
AB - The UV light is an effective tracer for young stars. Base on the recent GALEX UV data of nearby, bright early-type galaxies, we find that 30% of them show a UV flux that is too strong to explain without invoking a 1-3% (in total stellar mass) star formation rate in the last billion years. This implies that low-level residual star formation was common during the last few billion years even in bright, early-type galaxies. We discuss the implications for the formation and evolution of early-type galaxies. This article is a summary of our recent work (Yi et al. 2005; Schawinski et al. 2006; Kaviraj et al. 2006).
UR - http://www.scopus.com/inward/record.url?scp=34848853848&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34848853848&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:34848853848
SN - 9703232736
SN - 9789703232734
T3 - Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
SP - 109
EP - 112
BT - The 3rd Mexico-Korea Conference on Astrophysics
T2 - 3rd Mexico-Korea Conference on Astrophysics: Telescopes of the Future and San Pedro Martir
Y2 - 8 November 2005 through 11 November 2005
ER -