Re-identification of G35.6−0.4 as a supernova remnant |
| |
| Authors: | D A Green |
| |
| Institution: | Astrophysics Group, Cavendish Laboratory, 19 J. J. Thomson Avenue, Cambridge CB3 0HE |
| |
| 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 H ii 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 H ii region. It is ≈15 × 11 arcmin2 in extent, showing partial limb brightening. |
| |
| Keywords: | ISM: individual: G35 6?0 4 supernova remnants radio continuum: ISM |
|
|
