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A cosmic ray current-driven instability in partially ionised media

Abstract:

Context. We investigate the growth of hydromagnetic waves driven by streaming cosmic rays in the precursor environment of a supernova remnant shock. Aims. It is known that transverse waves propagating parallel to the mean magnetic field are unstable to anisotropics in the cosmic ray distribution, and may provide a mechanism to substantially amplify the ambient magnetic field. We quantify the extent to which temperature and ionisation fractions modify this picture. Methods. Using a kinetic des...

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Publication status:
Published

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Publisher copy:
10.1051/0004-6361:20078336

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
Journal:
ASTRONOMY and ASTROPHYSICS
Volume:
475
Issue:
2
Pages:
435-439
Publication date:
2007-11-01
DOI:
EISSN:
1432-0746
ISSN:
0004-6361
Source identifiers:
158054
Language:
English
Keywords:
Pubs id:
pubs:158054
UUID:
uuid:5cfd87ea-813e-4883-990f-36866a96e3ea
Local pid:
pubs:158054
Deposit date:
2012-12-19

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