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Filaments in the Galactic Centre—with Special Reference to the ‘Snake’

Published online by Cambridge University Press:  05 March 2013

Geoffrey V. Bicknell  and
Jianke Li
Geoffrey V. Bicknell*
Affiliation:
Research School of Astronomy & Astrophysics, Australian National University, Mt Stromlo Observatory, Cotter Road, Weston, ACT 2611, Australia Department of Physics & Theoretical Physics, Australian National University, Canberra, ACT 0200, Australia
Jianke Li
Affiliation:
Research School of Astronomy & Astrophysics, Australian National University, Mt Stromlo Observatory, Cotter Road, Weston, ACT 2611, Australia Department of Mathematics, Australian National University, Canberra, ACT 0200, Australia
*
Geoff.Bicknell@anu.edu.au
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Abstract

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The non-thermal filaments in the Galactic centre constitute one of the great mysteries of this region of the Galaxy. We summarise the observational data on these filaments and critically review the various theories which currently outnumber the observed filaments. We summarise our theory for the longest of these filaments, the Snake, and discuss the relevance of this model for the other filaments in the Galactic centre region. The physics involved in our model for the Snake involves much of the physics that has dominated the career of Professor Don Melrose. In particular, the diffusion of relativistic electrons in the Snake is determined from the theory of resonant scattering by Alfvén waves.

Keywords

galaxies: interstellar mattergalaxies: the Galaxymagnetic fieldsstar formation
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 18 , Issue 4 , 2001 , pp. 431 - 442
Copyright
Copyright © Astronomical Society of Australia 2001

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