تقرير
X-ray spectra of Sgr A East and diffuse X-ray background near the Galactic center
| العنوان: | X-ray spectra of Sgr A East and diffuse X-ray background near the Galactic center |
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| المؤلفون: | Ono, Akiko, Uchiyama, Hideki, Yamauchi, Shigeo, Nobukawa, Masayoshi, Nobukawa, Kumiko K., Koyama, Katsuji |
| سنة النشر: | 2019 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena |
| الوصف: | This paper reports the analysis procedure and results of simultaneous spectral fits of the Suzaku archive data for Sagittarius (Sgr) A East and the nearby Galactic center X-ray emission (GCXE). The results are that the mixed-morphology supernova remnant Sgr A East has a recombining plasma (RP) with Cr and Mn He$\alpha$ lines, and a power-law component (PL) with an Fe I K$\alpha$ line. The nearby GCXE has a $\sim$1.5-times larger surface brightness than the mean GCXE far from Sgr A East, although the spectral shape is almost identical. Based on these results, we interpret that the origins of the RP and the PL with the Fe I K$\alpha$ line are past big flares of Sgr A$^*$. Comment: Accepted for publication in PASJ |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1093/pasj/psz025 |
| URL الوصول: | http://arxiv.org/abs/1902.08386 |
| رقم الأكسشن: | edsarx.1902.08386 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1093/pasj/psz025 |
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