Paramagnetic alignment of thermally rotating dust | Zendy

A. Lazarian | Zendy

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Paramagnetic alignment of thermally rotating dust

Author(s) -

A. Lazarian

Publication year - 1997

Publication title -

monthly notices of the royal astronomical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.058

H-Index - 383

eISSN - 1365-8711

pISSN - 0035-8711

DOI - 10.1093/mnras/288.3.609

Subject(s) - physics , paramagnetism , magnetic field , condensed matter physics , angular momentum , superparamagnetism , field (mathematics) , grain size , computational physics , nuclear magnetic resonance , classical mechanics , magnetization , quantum mechanics , materials science , composite material , mathematics , pure mathematics

Paramagnetic alignment of thermally rotating oblate dust grains is studiedanalytically for finite ratios of grain to gas temperatures. For such ratios,the alignment of angular momentum J in respect to the grain axis of maximalinertia is only partial. We treat the alignment of J using perturbative methodsand disentangle the problem of J alignment in grain body axes from that of Jalignment in respect to magnetic field. This enables us to find the alignmentof grain axes to magnetic field and thus relate our theory to polarimetricobservations.Our present results are applicable to the alignment of bothparamagnetic and superparamagnetic grains.Comment: 22 pages, 3 figures. Accepted to MNRA

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