An Atomic and Molecular Study of the Interstellar Medium Around the SNR RCW 103

Abstract

We report on the detection of HCO+ and 12CO emission in the rotational transition J=1-0 in the vicinity of the shock front at the southern border of the supernova remnant RCW 103, where previous infrared observations suggest an interaction with a molecular cloud. The observations were carried out with the Australian Millimeter Radiotelescope at Mopra. We observed a depletion of HCO+ behind the supernova shock front. In addition, we studied the interstellar medium over an extended region towards RCW 103 based on archival 21 cm HI line observations from the Australia Telescope Compact Array (ATCA) and the Parkes Telescope. No atomic gas is observed in emission in coincidence with the molecular feature. This absence is interpreted in terms of self absorption processes.

arXiv commentaccepted to be published in Publications of the Astronomical Society of Australia

References in corpus (5)

• The Southern Galactic Plane Survey: HI Observations and Analysis
• Young core collapse supernova remnants and their supernovae
• X-ray Variability from the Compact Source in the Supernova Remnant RCW 103
• The environment of Tycho: possible interaction with molecular cloud
• Influence of the neutron star 1E 161348-5055 in RCW 103 on the surrounding medium

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