期刊
ASTROPHYSICAL JOURNAL
卷 670, 期 1, 页码 279-294出版社
IOP PUBLISHING LTD
DOI: 10.1086/521867
关键词
galaxies : evolution; surveys; ultraviolet : galaxies
资金
- STFC [ST/F001967/1, ST/F005245/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/F005245/1, ST/F001967/1] Funding Source: researchfish
- National Research Foundation of Korea [R17-2006-081-01001-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We study the ultraviolet to far-infrared (hereafter UV-to-IR) SEDs of a sample of intermediate-redshift (0.2 <= z <= 0.7) UV-selected galaxies from the ELAIS N1 and ELAIS N2 fields by fitting a multi-wavelength data set to a library of GRASIL templates. Star formation related properties of the galaxies are derived from the library of models by using Bayesian statistics. We find a decreasing presence of galaxies with low attenuation and low total luminosity as redshift decreases, which does not hold for high total luminosity galaxies. In addition, the dust attenuation of low-mass galaxies increases as redshift decreases, and this trend seems to disappear for galaxies with M* >= 10(11) M-circle dot. This result is consistent with amass-dependent evolution of the dust-to-gas ratio, which could be driven by amass-dependent efficiency of star formation in star-forming galaxies. The specific star formation rates (SSFR) decrease with increasing stellar mass at all redshifts, and for a given stellar mass the SSFR decreases with decreasing redshift. The differences in the slope of the M*-SSFR relation found between this work and others at similar redshift could be explained by the adopted selection criteria of the samples, which for a UV-selected sample, favors blue, star-forming galaxies.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据