New Distances to Four Supernova Remnants
S. Ranasinghe1, D. A. Leahy1, *, Wenwu Tian1, 2
Identifiers and Pagination:Year: 2018
First Page: 1
Last Page: 13
Publisher Id: PHY-4-1
Article History:Received Date: 9/3/2018
Revision Received Date: 20/05/2018
Acceptance Date: 01/06/2018
Electronic publication date: 29/06/2018
Collection year: 2018
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Distances are found for four supernova remnants without previous distance measurements. H I spectra and H I channel maps are used to determine the maximum velocity of H I absorption for the four Supernova Remnants (SNRs).
We examined 13CO emission spectra and channel maps to look for possible molecular gas associated with each SNR, but did not find any.
The resulting distances for the SNRs are 3.5 ± 0.2 kpc (G24.7+0.6), 4.7 ± 0.3 kpc (G29.6+0.1), 4.1 ± 0.5 kpc (G41.5+0.4) and 4.5 ± 0 .4 - 9.0 ± 0.4 kpc (G57.2+0.8).