Effects of magnetic fields on the cosmic-ray ionization of molecular cloud cores

2011/04/28 by Marco Padovani, M. Padovani, D. Galli +1 · 1 citation
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics and Cosmic Phenomena #Astrophysics and Star Formation Studies #Cosmic ray #Coupling (piping) #Field (mathematics) #Ionization #Magnetic field #Molecular cloud #astro-ph.SR

paper · pdf · doi:10.1051/0004-6361/201116853

7 pages, 7 figures, to be published in Astronomy and Astrophysics

arxiv created 2011/04/28 · openalex publication_date 2011/04/28 · arxiv updated 2015/05/28 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Context. Low-energy cosmic rays are the dominant source of ionization for molecular cloud cores. The ionization fraction, in turn, controls the coupling of the magnetic field to the gas and hence the dynamical evolution of the cores.

Citations

• Secondary Antiprotons and Propagation of Cosmic Rays in the Galaxy and Heliosphere
• Gamma rays from molecular clouds

Cited by

• Cosmic-ray ionisation in circumstellar discs