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Determining the cosmic ray ionization rate in dynamically evolving clouds

Abstract:

The ionization fraction is an important factor in determining the chemical and physical evolution of star forming regions. In the dense, dark starless cores of such objects, the ionization rate is dominated by cosmic rays; it is therefore possible to use simple analytic estimators, based on the relative abundances of different molecular tracers, to determine the cosmic ray ionization rate. This paper uses a simple model to investigate the accuracy of two well-known estimators in dynamically e...

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Publisher copy:
10.1051/0004-6361:20053837

Authors


Lintott, CJ More by this author
Rawlings, JMC More by this author
Journal:
Astronomy and Astrophysics
Volume:
448
Issue:
2
Pages:
425-432
Publication date:
2006-03-05
DOI:
EISSN:
1432-0746
ISSN:
0004-6361
URN:
uuid:cd38a5d2-1290-4138-b940-aa7bb513ff44
Source identifiers:
160143
Local pid:
pubs:160143
Language:
English
Keywords:

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