Magnetic Effects in Global Star Formation
Mordecai-Mark Mac Low (Dept. of Astrophysics, American Museum of, Natural History, New York, NY)
TL;DR
This paper reviews how magnetic fields influence star formation in galaxies, emphasizing the role of turbulence driven by the magnetorotational instability as a key regulatory process.
Contribution
It highlights the significance of MRI-induced turbulence over other magnetic processes in regulating galactic star formation.
Findings
MRI likely dominates turbulent support in star formation.
Magnetic instabilities influence the evolution of galactic turbulence.
Magnetic effects are crucial in understanding star formation regulation.
Abstract
I review the effects of magnetic fields on star formation in galaxies. This includes the effects of the magnetorotational instability (MRI) at galactic scales, magneto-Jeans and swing instabilities, Parker instabilities, and the effects of magnetic fields on the evolution of supernova-driven turbulence. I argue that currently turbulent support by the MRI appears likely to be the most important of these processes to regulating star formation.
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Taxonomy
TopicsAstrophysics and Star Formation Studies · Stellar, planetary, and galactic studies · Astro and Planetary Science