The Distance Measurements of Supernova Remnants in The Fourth Galactic Quadrant

We take advantage of the red clump stars to build the relation of the optical extinction (AV) and distance in each direction of supernova remnants (SNRs) with known extinction in the fourth Galactic quadrant. The distances of 9 SNRs are well determined by this method. Their uncertainties range from...

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Bibliographic Details
Published inarXiv.org
Main Authors Su-Su, Shan, Zhu, Hui, Wen-Wu, Tian, Hai-Yan, Zhang, Ai-Yuan, Yang, Meng-Fei, Zhang
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 09.01.2019
Subjects
Distance measurement
Extinction
Physics - Astrophysics of Galaxies
Physics - Instrumentation and Methods for Astrophysics
Supernova remnants
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Summary:We take advantage of the red clump stars to build the relation of the optical extinction (AV) and distance in each direction of supernova remnants (SNRs) with known extinction in the fourth Galactic quadrant. The distances of 9 SNRs are well determined by this method. Their uncertainties range from 10% to 30%, which is significantly improved for 8 SNRs, G279.0+1.1, G284.3-1.8, G296.1-0.5, G299.2-2.9, G308.4-1.4, G309.2-0.6, G309.8- 2.6, G332.4-0.4. In addition, SNR G284.3-1.8 with the new distance of 5.5 kpc is not likely associated with the PSR J1016-5857 at 3 kpc.
ISSN:2331-8422
DOI:10.48550/arxiv.1901.02882