Thermal Regulation and the Star-Forming Main Sequence

26 Sep 2019 Steinhardt Charles L. Jermyn Adam S. Lodman Jackie

We argue that the interplay between cosmic rays, the initial mass function, and star formation plays a crucial role in regulating the star-forming "main sequence". To explore these phenomena we develop a toy model for galaxy evolution in which star formation is regulated by a combination of a temperature-dependent initial mass function and heating due to starlight, cosmic rays and, at very high redshift, the cosmic microwave background... (read more)

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