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http://hdl.handle.net/2289/4441
Title: | Cosmic ray ionization of the interstellar medium |
Authors: | Nath, Biman B. Biermann, P.L. |
Keywords: | atmospheric ionization cosmic rays interstellar matter molecular clouds plasma heating radiation spectra abundance particle diffusion spectrum analysis |
Issue Date: | Mar-1994 |
Publisher: | Royal Astronomical Society |
Citation: | Monthly Notices of the Royal Astronomical Society, 1994, Vol.267, p447 |
Abstract: | We consider a cosmic ray spectrum that is a power law in momentum down to a cut-off, and derive a lower cut-off corresponding to Ekin approximately (30-60) MeV from the observed ionization rates in nearby diffuse clouds. While the real spectra of cosmic rays may not be so simple, we argue that one expects a substantial change in the spectra of such energies and that, at a first approximation, a power-law spectrum with a lower cut-off is appropriate. Such a description of the cosmic rays in the interstellar medium is not only theoretically more attractive than the spectra used in the literature, but is also supported by recent observations. |
Description: | Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations) |
URI: | http://hdl.handle.net/2289/4441 |
ISSN: | 0035-8711 1365-2966 (Online) |
Alternative Location: | http://adsabs.harvard.edu/abs/1994MNRAS.267..447N http://arxiv.org/abs/astro-ph/9311048 |
Copyright: | 1994 Royal Astronomical Society |
Appears in Collections: | Research Papers (A&A) |
Files in This Item:
File | Description | Size | Format | |
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1994_MNRAS_V267__p447.pdf Restricted Access | Restricted Access | 122.74 kB | Adobe PDF | View/Open Request a copy |
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