Spectral analysis of the Galactic supernova remnant Kesteven 69 with Suzaku-Reference-Cited by-同舟云学术

Spectral analysis of the Galactic supernova remnant Kesteven 69 with Suzaku

Published:2023-10-09 Issue:6 Volume:75 Page:1273-1279
ISSN:0004-6264
Container-title:Publications of the Astronomical Society of Japan
language:en
Short-container-title:

Author:

Yamauchi Shigeo¹,Pannuti Thomas G²

Affiliation:

1. Faculty of Science, Nara Women’s University , Kitauoyanishimachi, Nara, Nara 630-8506 , Japan

2. Department of Physics, Earth Sciences and Space Systems Engineering , Room 425C, Lappin Hall, 150 University Boulevard, Morehead State University, Morehead, KY 40351 , USA

Abstract

Abstract The results of a Suzaku observation of the supernova remnant (SNR) Kesteven 69 = G21.8−0.6 are presented. To estimate the sky background precisely, we conducted a simultaneous fit of the source region spectrum with the background region spectrum and found that the SNR spectrum is well represented by a two-component ionizing plasma model composed of a low-temperature plasma at kTe = 0.80 ± 0.11 keV and a high-temperature plasma at kTe = 1.5 ± 0.4 keV. The existence of a low-ionized Fe K line at 6.49 ± 0.07 keV was confirmed. The center energy of the line is consistent with those of type Ia SNRs.

Funder

Japan Society for the Promotion of Science

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Link

https://academic.oup.com/pasj/article-pdf/75/6/1273/54151702/psad068.pdf

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