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Measuring the distance and searching for radio point sources of a newly identified supernova remnant
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Measuring the distance and searching for radio point sources of a newly identified supernova remnant

David Hui, Anne Green, Albert Kong, Ting-Ni Lu, Regina Huang, Kyoung Ae Sep, Ludwig Trepl, K. T. Kim and YS Kim
ATNF proposal
2012

Abstract

supernovae: supernovae remnants;pulsars;neutron stars;ATCA
We propose to observe a newly identified supernova remnant (SNR) G308.3-1.4 and its associated compact X-ray object with ATCA. While the X-ray observation can confirm the SNR nature, it does not provide information for the distance which is a key parameter in determining the physical properties of the SNR (e.g. age). We therefore propose a high resolution spectral line observation for estimating the SNR distance as well as search for the evidence for the possible SNR-molecular cloud interaction. For the compact X-ray object, we have discovered a 1.4 hrs periodicity. Together with its X-ray and optical spectral properties, this object suggests a possible evidence for a compact binary survived in a SN explosion. For constraining its nature, we also propose a high angular resolution continuum observation with ATCA for searching radio point source at its X-ray position as well as other region of G308.3-1.4.

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