The heart-shaped supernova remnant 3C 391 viewed in multi-bands |
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Authors: | Yang Su Yang Chen |
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Institution: | Department of Astronomy, Nanjing University, Nanjing 210093, PR China |
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Abstract: | Using Chandra X-ray, Spitzer mid-IR, and 1.5 GHz radio data, we examine the spatial structure of SNR 3C 391. The X-ray surface brightness is generally anti-correlative with the IR and radio brightness. The multiband data clearly exhibit a heart-shaped morphology and show the multi-shell structure of the remnant. A previously unseen thin brace-like shell on the south detected at 24 μm is projected outside the radio border and confines the southern faint X-ray emission. The leading 24 μm knot on the SE boundary appears to be partly surrounded by soft X-ray emitting gas. The mid-IR emission is dominated by the contribution of the shocked dust grains, which may have been partly destroyed by sputtering. |
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Keywords: | ISM Supernova remnants 3C 391 (G31 9+0 0) X-rays Infrared Dust |
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