Re-identification of G35.6-0.4 as a supernova remnant (original) (raw)
ADS
Abstract
G35.6-0.4 is an extended radio source in the Galactic plane which has previously been identified as either a supernova remnant or an HII region. Observations from the Very Large Array Galactic Plane Survey at 1.4 GHz with a resolution of 1 arcmin allow the extent of G35.6-0.4 to be defined for the first time. Comparison with other radio survey observations show that this source has a non-thermal spectral index, with S ~ ν-0.47+/-0.07. G35.6-0.4 does not have obvious associated infrared emission, so it is identified as a Galactic supernova remnant, not an HII region. It is ~15 × 11arcmin2 in extent, showing partial limb brightening.
Publication:
Monthly Notices of the Royal Astronomical Society
Pub Date:
October 2009
DOI:
10.1111/j.1365-2966.2009.14957.x
arXiv:
Bibcode:
Keywords:
- ISM: individual: G35.6-0.4;
- supernova remnants;
- radio continuum: ISM;
- Astrophysics - High Energy Astrophysical Phenomena
E-Print:
4 pages, accepted by MNRAS