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2004MNRAS.352.1405C - Mon. Not. R. Astron. Soc., 352, 1405-1412 (2004/August-3)
Supernova remnant G292.2-0.5, its pulsar, and the Galactic magnetic field.
CASWELL J.L., McCLURE-GRIFFITHS N.M. and CHEUNG M.C.M.
Abstract (from CDS):
The ratio of rotation measure to pulsar dispersion measure yields a value of -1.4 µG (towards us) for the (density-weighted) average line-of-sight component of magnetic field for the 8.4-kpc path-length to the SNR and pulsar. The unusually high rotation measure, together with the large distance over which it has accumulated, argues that this field is a persistent feature on a large scale that outweighs smaller-scale fluctuations and reversals. The 8.4-kpc path-length lies almost wholly within the Carina spiral arm of our Galaxy and thus this portion of the arm possesses an average clockwise field of 1.4 µG. We interpret other evidence to suggest that the clockwise field extends for at least a further 8.5 kpc along the same arm, in the region where it is usually referred to as the Sagittarius arm. Observations such as these provide a powerful tool for exploring the large-scale structure of the Galactic magnetic field in relation to the spiral-arm structure.
Abstract Copyright: 2004 RAS
Journal keyword(s): pulsars: individual: PSR J1119-6127 - ISM: individual: G292.2-0.5 - supernova remnants - Galaxy: structure - galaxies: magnetic fields - radio continuum: ISM
Simbad objects: 12
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