Implications of a Temperature-dependent Initial Mass Function. I. Photometric Template Fitting

@article{Sneppen2022ImplicationsOA,
  title={Implications of a Temperature-dependent Initial Mass Function. I. Photometric Template Fitting},
  author={Albert Sneppen and Charles. L. Steinhardt and Hagan Hensley and Adam S. Jermyn and Basel Mostafa and John R. Weaver},
  journal={The Astrophysical Journal},
  year={2022},
  volume={931}
}
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, a parameterization of the IMF is introduced into photometric template fitting of the COSMOS2015 catalog. The resulting best-fit templates suggest systematic variations in the IMF, with most galaxies exhibiting top-heavier stellar populations than in the Milky Way. At fixed redshift… 
2 Citations
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