SRAO CO Observation of 11 Supernova Remnants in l = 70 to 190 deg

Abstract

We present the results of 12CO J = 1-0 line observations of eleven Galactic supernova remnants (SNRs) obtained using the Seoul Radio Astronomy Observatory (SRAO) 6-m radio telescope. The observation was made as a part of the SRAO CO survey of SNRs between l = 70 and 190 deg, which is intended to identify SNRs interacting with molecular clouds. The mapping areas for the individual SNRs are determined to cover their full extent in the radio continuum. We used halfbeam grid spacing (60") for 9 SNRs and full-beam grid spacing (120") for the rest. We detected CO emission towards most of the remnants. In six SNRs, molecular clouds showed a good spatial relation with their radio morphology, although no direct evidence for the interaction was detected. Two SNRs are particularly interesting: G85.4+0.7, where there is a filamentary molecular cloud along the radio shell, and 3C434.1, where a large molecular cloud appears to block the western half of the remnant. We briefly summarize the results obtained for individual SNRs.

Accepted for publication in Astrophysics & Space Science. 12 pages, 12 figures, and 3 tables

References in corpus (4)

• The Boston University-Five College Radio Astronomy Observatory Galactic Ring Survey
• Evidence for Shocked Molecular Gas in the Galactic SNR CTB 109 (G109.1-1.0)
• FUV and X-ray Observations of the Reverse Shock in the SMC SNR 1E 0102.2-7219
• Chandra View of DA 530: A Sub-Energetic Supernova Remnant with a Pulsar Wind Nebula?

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• Molecular Environments of Three Large Supernova Remnants in the Third Galactic Quadrant: G205.5+0.5, G206.9+2.3, and G213.0-0.6
• CO J=1-0 and J=2-1 Line Observations of the Molecular Cloud - Blocked Supernova Remnant 3C434.1
• Detection of Extensive Optical Emission from the Extremely Radio Faint Galactic Supernova Remnant G182.4+4.3
• A New Distance to the Supernova Remnant DA 530 Based on HI Absorption of Polarized Emission
• Modeling the multiwavelength emission from G73.9+0.9: Gamma-rays from a SNR-MC interaction