Cosmic-ray ionisation in circumstellar discs

Author： Padovani Marco   Ivlev Alexei V.   Galli Daniele   Caselli Paola  

Publisher： Edp Sciences

E-ISSN： 1432-0746|614|issue|A111-A111

ISSN： 0004-6361

Source： Astronomy & Astrophysics, Vol.614, Iss.issue, 2018-06, pp. : A111-A111

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

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Abstract

Context. Galactic cosmic rays (CRs) are a ubiquitous source of ionisation of the interstellar gas, competing with UV and X-ray photons as well as natural radioactivity in determining the fractional abundance of electrons, ions, and charged dust grains in molecular clouds and circumstellar discs.

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