Re-identification of G35.6-0.4 as a supernova remnant

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 VLA 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 alpha -0.47 +/- 0.07. G35.6-0.4 does not have obvious associated infra-red emission, so it is identified as a Galactic supernova remnant, not an HII region. It is approximately 15 x 11 arcmin**2 in extent, showing partial limb brightening.

4 pages, accepted by MNRAS

References in corpus (6)

• A statistical study of 233 pulsar proper motions
• IRIS: A new generation of IRAS maps
• The VLA Galactic Plane Survey
• Spitzer IRAC observations of newly-discovered planetary nebulae from the Macquarie-AAO-Strasbourg H-alpha Planetary Nebula Project
• The (Re-)Discovery of G350.1-0.3: A Young, Luminous Supernova Remnant and Its Neutron Star
• An infrared study of galactic OH/IR stars. I. An optical/near-IR atlas of the Arecibo sample

Cited by in corpus (15)

• The 1st Fermi Lat Supernova Remnant Catalog
• Fermi-LAT Discovery of GeV Gamma-ray Emission from the Vicinity of SNR W44
• A derivation of the free-free emission on the Galactic plane between l=20 and 44 degrees
• The Mipsgal View of Supernova Remnants in the Galactic Plane
• Hi Shells and Supershells in the I-GALFA Hi 21-cm Line Survey: I. Fast-Expanding Hi Shells Associated with Supernova Remnants
• A Catalogue of Galactic Supernova Remnants in the far-infrared: revealing ejecta dust in pulsar wind nebulae
• COMAP Early Science: VI. A First Look at the COMAP Galactic Plane Survey
• Kinematic distance study of the planetary nebulae-supernova remnant-HII region complex at G35.6-0.5
• Cosmic rays in the surroundings of SNR G35.6-0.4
• Deep GMRT radio observations and a multi-wavelength study of the region around HESS J1858+020
• The Galactic distribution of SNRs
• Study of the molecular clump associated with the high-energy source HESS J1858+020
• GeV Gamma-ray Emission and Molecular Clouds towards Supernova Remnant G35.6$-$0.4 and the TeV Source HESS J1858+020
• HESS J1858+020: A GeV-TeV source possibly powered by CRs from SNR G35.6-0.4
• Shape Analysis of HII Regions -- II. Synthetic Observations