Wind-Swept Clouds and Possible Triggered Star-Formation associated with the Supernova Remnant G357.7+0.3

Abstract

We present evidence for interaction between the supernova remnant (SNR) G357.7+0.3 and nearby molecular clouds, leading to the formation of wind-swept structures and bright emission rims. These features are not observed at visual wavelengths, but are clearly visible in mid-infrared (MIR) mapping undertaken using the Spitzer Space Telescope (SST). Analysis of one of these clouds, the bright cometary structure G357.46+0.60, suggests that it contains strong polycyclic aromatic hydrocarbon (PAH) emission features in the 5.8 and 8.0 microns photometric bands, and that these are highly variable over relatively small spatial scales. This source also appears to contain a YSO within the bright rim structure, with a steeply rising spectrum between 1.25 and 24 microns. Finally, it is noted that a further, conical emission region appears to be associated with the Mira V1139 Sco, and it is suggested that this may represent the case of a Mira outflow interacting with a SNR.

13 pages, 9 figures, Publicated in MNRAS. 43 pages in arXiv

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Cited by in corpus (10)

• Radio emission from Supernova Remnants
• The Milky Way Project: A statistical study of massive star formation associated with infrared bubbles
• GASKAP-HI Pilot Survey Science I: ASKAP Zoom Observations of HI Emission in the Small Magellanic Cloud
• A Complete Catalogue of Dusty Supernova Remnants
• The Milky Way Project and ATLASGAL: The distribution and physical properties of cold clumps near infrared bubbles
• Discovery of Broad Molecular lines and of Shocked Molecular Hydrogen from the Supernova Remnant G357.7+0.3: HHSMT, APEX, Spitzer and SOFIA Observations
• Imaging of Four Galactic Supernovae Remnants in the Mid-Infrared, and their Interaction with the Interstellar Medium
• The Interaction of Supernova Remnant G357.7+0.3 with the Interstellar Medium
• The nature of G52.381-0.849 and G56.240-0.345: young stellar objects associated with extended mid-infrared emission?
• High Velocity HI Jet-like Feature Towards the SNR Candidate G351.7-1.2