SPITZER observations of z-3 Lyman break galaxies: Stellar masses and mid-infrared properties

	SPITZER observations of z-3 Lyman break galaxies: Stellar masses and mid-infrared properties
	Rigopoulou, D.; Huang, J. -S.; Papovich, C.; Ashby, M. L. N.; Barmby, P.; Shu, C.; Bundy, K.; Egami, E.; Magdis, G.; Smith, H.
刊名	ASTROPHYSICAL JOURNAL
	2006-09-01
卷号	648 期号:1 页码:81-94
关键词	cosmology : observations galaxies : evolution galaxies : high redshift galaxies : stellar content infrared : galaxies
英文摘要	We describe the spectral energy distributions (SEDs) of Lyman break galaxies (LBGs) at z similar to 3, using deep mid-infrared and optical observations of the extended Groth strip, obtained with IRAC and MIPS on board Spitzer and from the ground, respectively. We focus on LBGs with detections at all four IRAC bands, in particular the 26 galaxies with IRAC 8 mu m band (rest-frame K-band) detections. We use stellar population-synthesis models and probe the stellar content of these galaxies. Based on best-fit continuous star formation models, we derive estimates of the stellar mass for these LBGs. As in previous studies, we find that a fraction of LBGs have very red colors and large estimated stellar masses (M-* > 5 x 10(10) M-circle dot); the current Spitzer data allow us, for the first time, to study these massive LBGs in detail. We discuss the link between these LBGs and submillimeter-luminous galaxies, and we find that the number density of these massive LBGs at high redshift is higher than predicted by current semianalytic models of galaxy evolution.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	STAR-FORMING GALAXIES ; SPECTRAL ENERGY-DISTRIBUTIONS ; EXTREMELY RED OBJECTS ; ARRAY CAMERA IRAC ; DEEP-FIELD-SOUTH ; HIGH-REDSHIFT ; SPACE-TELESCOPE ; LOCKMAN HOLE ; POPULATION SYNTHESIS ; MASSIVE GALAXIES
收录类别	SCI
语种	英语
WOS记录号	WOS:000240230200009
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/19381]
专题	上海天文台_星系宇宙学重点实验室
作者单位	1.Univ Oxford, Dept Astrophys, Oxford OX1 3RH, England 2.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA 3.Univ Arizona, Steward Observ, Tucson, AZ 85721 USA 4.Shanghai Normal Univ, Joint Ctr Astrophys, Shanghai 200234, Peoples R China 5.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 6.CALTECH, Pasadena, CA 91125 USA 7.CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA
推荐引用方式 GB/T 7714	Rigopoulou, D.,Huang, J. -S.,Papovich, C.,et al. SPITZER observations of z-3 Lyman break galaxies: Stellar masses and mid-infrared properties[J]. ASTROPHYSICAL JOURNAL,2006,648(1):81-94.
APA	Rigopoulou, D..,Huang, J. -S..,Papovich, C..,Ashby, M. L. N..,Barmby, P..,...&Fazio, G. G..(2006).SPITZER observations of z-3 Lyman break galaxies: Stellar masses and mid-infrared properties.ASTROPHYSICAL JOURNAL,648(1),81-94.
MLA	Rigopoulou, D.,et al."SPITZER observations of z-3 Lyman break galaxies: Stellar masses and mid-infrared properties".ASTROPHYSICAL JOURNAL 648.1(2006):81-94.