Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..565..197r&link_type=abstract
YOUNG SUPERNOVA REMNANTS: Eleventh Astrophysics Conference. AIP Conference Proceedings, Volume 565, pp. 197-200 (2001).
Astronomy and Astrophysics
Astrophysics
2
Near Infrared, Supernova Remnants, X-Ray Sources, X-Ray Bursts
Scientific paper
We present near-infrared images of the supernova remnant RCW 103 (G332.4-0.4) from the Two Micron All Sky Survey (2MASS). In all three 2MASS bands-J, H, Ks-emission is detected, revealing a barrel-shaped, shell-like morphology. However, the J and H band shells are displaced with Ks band shell. The J and H band emission are mostly from [Fe II] lines while the Ks band emission is mostly from molecular hydrogen, as inferred from previous near-infrared spectroscopy. The 2MASS images show that the displacement between the [Fe II] and H2 is not just due to a projection effect; instead, it appears that the layers emitting [Fe II] and H2 lines are intrinsically double shells. We compared the 2MASS images with radio and X-ray images at comparable resolutions. The X-ray and radio shells coincide with the J and H band shells, while the Ks band shell is located outside of the shock front. We discuss the origin of the molecular hydrogen shell in terms of a magnetic precursor or excitation by a radiative precursor. We also discuss the ISM environment of RCW 103 using physical parameters inferred from near-infrared lines. .
Cambresy Laurent
Koo Bon-Chul
Reach William T.
Rho Jeonghee
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