The stellar mass function and star formation rate–stellar mass relation of galaxies at z ∼ 4–7
نویسندگان
چکیده
منابع مشابه
Relation Between Stellar Mass and Star Formation Activity in Galaxies
For a mass-selected sample of 66544 galaxies with photometric redshifts (zphot) from the Cosmic Evolution Survey (COSMOS), we examine the evolution of star formation activity as a function of stellar mass in galaxies. We estimate the cosmic star formation rates (SFR) over the range 0.2 < zphot < 1.2, using the rest-frame 2800 Å flux (corrected for extinction). We find the mean SFR to be a stron...
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It has frequently been suggested in the literature that the stellar IMF in galaxies was top-heavy at early times. This would be plausible physically if the IMF depended on a mass-scale such as the Jeans mass that was higher at earlier times because of the generally higher temperatures that were present then. In this paper it is suggested, on the basis of current evidence and theory, that the IM...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2015
ISSN: 1365-2966,0035-8711
DOI: 10.1093/mnras/stv160