Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-03-29
Adv.SpaceRes.41:401-406,2008
Astronomy and Astrophysics
Astrophysics
11 pages (including 4 figures in color), accepted for publication in AdSpR
Scientific paper
10.1016/j.asr.2007.03.053
Using Chandra X-ray, Spitzer mid-IR, and 1.5 GHz radio data, we examine the spatial structure of SNR 3C391. 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 thin brace-like shell on the south detected at 24 um is projected outside the radio border and confines the southern faint X-ray emission. The leading 24 um 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.
Chen Yang
Su Yang
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