Implications of a Temperature-dependent Initial Mass Function. I. Photometric Template Fitting
نویسندگان
چکیده
Abstract A universal stellar initial mass function (IMF) should not be expected from theoretical models of star formation, but little conclusive observational evidence for a variable IMF has been uncovered. In this paper, parameterization the is introduced into photometric template fitting COSMOS2015 catalog. The resulting best-fit templates suggest systematic variations in IMF, with most galaxies exhibiting top-heavier populations than Milky Way. At fixed redshift, only small range IMFs are found, typical becoming progressively increasing redshift. Additionally, subpopulations ULIRGs, quiescent and star-forming compared predictions population feedback show clear qualitative similarities to evolution dust temperatures.
منابع مشابه
I. the Stellar Initial Mass Function
o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o oo o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o We summarize recent bservati nal and the retical pr gress aimed at understanding the rigin f the stellar initial mass functi n (IMF), with specific f cus n galactic star-f rming regi ns. We synthesize data fr m vari us eff rts t determine the IMF in very y...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2022
ISSN: ['2041-8213', '2041-8205']
DOI: https://doi.org/10.3847/1538-4357/ac695e