Insight-HXMT dedicated 33-day observation of SGR J1935+2154 II. Burst Spectral Catalog
Since April 28, 2020, Insight-HXMT has implemented a dedicated observation on the magnetar SGR J1935+2154. Thanks to the wide energy band (1-250 keV) and high sensitivity of Insight-HXMT, we obtained 75 bursts from SGR J1935+2154 during a month-long activity episode after the emission of FRB 200428....
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| creator | Cai, Ce Xiong, Shaolin Lin, Lin Li, Chengkui Zhang, Shuangnan Xue, Wangchen Tuo, Youli Li, Xiaobo Ge, Mingyu Zhao, Haisheng Song, Liming Lu, Fangjun Zhang, Shu Li, Qingxin Xiao, Shuo Guo, Zhiwei Xie, Shenglun Zhang, Yanqiu Yi, Qibin Zhao, Yi Zhang, Zhen Liu, Jiacong Zheng, Chao Wang, Ping |
| description | Since April 28, 2020, Insight-HXMT has implemented a dedicated observation on the magnetar SGR J1935+2154. Thanks to the wide energy band (1-250 keV) and high sensitivity of Insight-HXMT, we obtained 75 bursts from SGR J1935+2154 during a month-long activity episode after the emission of FRB 200428. Here, we report the detailed time-integrated spectral analysis of these bursts and the statistical distribution of the spectral parameters. We find that for 15%(11/75) of SGR J1935+2154 bursts, the CPL model is preferred, and most of them occurred in the latter part of this active epoch. In the cumulative fluence distribution, we find that the fluence of bursts in our sample is about an order of magnitude weaker than that of Fermi/GBM, but follows the same power law distribution. Finally, we find a burst with similar peak energy to the time-integrated spectrum of the X-ray burst associated with FRB 200428 (FRB 200428-Associated Burst), but the low energy index is harder. |
| doi_str_mv | 10.48550/arxiv.2204.07369 |
| format | Article |
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Burst Spectral Catalog</title><source>arXiv.org</source><source>Free E- Journals</source><creator>Cai, Ce ; Xiong, Shaolin ; Lin, Lin ; Li, Chengkui ; Zhang, Shuangnan ; Xue, Wangchen ; Tuo, Youli ; Li, Xiaobo ; Ge, Mingyu ; Zhao, Haisheng ; Song, Liming ; Lu, Fangjun ; Zhang, Shu ; Li, Qingxin ; Xiao, Shuo ; Guo, Zhiwei ; Xie, Shenglun ; Zhang, Yanqiu ; Yi, Qibin ; Zhao, Yi ; Zhang, Zhen ; Liu, Jiacong ; Zheng, Chao ; Wang, Ping</creator><creatorcontrib>Cai, Ce ; Xiong, Shaolin ; Lin, Lin ; Li, Chengkui ; Zhang, Shuangnan ; Xue, Wangchen ; Tuo, Youli ; Li, Xiaobo ; Ge, Mingyu ; Zhao, Haisheng ; Song, Liming ; Lu, Fangjun ; Zhang, Shu ; Li, Qingxin ; Xiao, Shuo ; Guo, Zhiwei ; Xie, Shenglun ; Zhang, Yanqiu ; Yi, Qibin ; Zhao, Yi ; Zhang, Zhen ; Liu, Jiacong ; Zheng, Chao ; Wang, Ping</creatorcontrib><description>Since April 28, 2020, Insight-HXMT has implemented a dedicated observation on the magnetar SGR J1935+2154. Thanks to the wide energy band (1-250 keV) and high sensitivity of Insight-HXMT, we obtained 75 bursts from SGR J1935+2154 during a month-long activity episode after the emission of FRB 200428. Here, we report the detailed time-integrated spectral analysis of these bursts and the statistical distribution of the spectral parameters. We find that for 15%(11/75) of SGR J1935+2154 bursts, the CPL model is preferred, and most of them occurred in the latter part of this active epoch. In the cumulative fluence distribution, we find that the fluence of bursts in our sample is about an order of magnitude weaker than that of Fermi/GBM, but follows the same power law distribution. Finally, we find a burst with similar peak energy to the time-integrated spectrum of the X-ray burst associated with FRB 200428 (FRB 200428-Associated Burst), but the low energy index is harder.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.2204.07369</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Bursts ; Emission analysis ; Energy bands ; Fluence ; Magnetars ; Physics - High Energy Astrophysical Phenomena ; Spectrum analysis</subject><ispartof>arXiv.org, 2022-04</ispartof><rights>2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>http://creativecommons.org/licenses/by/4.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,780,784,885,27925</link.rule.ids><backlink>$$Uhttps://doi.org/10.3847/1538-4365/ac67e4$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.48550/arXiv.2204.07369$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Cai, Ce</creatorcontrib><creatorcontrib>Xiong, Shaolin</creatorcontrib><creatorcontrib>Lin, Lin</creatorcontrib><creatorcontrib>Li, Chengkui</creatorcontrib><creatorcontrib>Zhang, Shuangnan</creatorcontrib><creatorcontrib>Xue, Wangchen</creatorcontrib><creatorcontrib>Tuo, Youli</creatorcontrib><creatorcontrib>Li, Xiaobo</creatorcontrib><creatorcontrib>Ge, Mingyu</creatorcontrib><creatorcontrib>Zhao, Haisheng</creatorcontrib><creatorcontrib>Song, Liming</creatorcontrib><creatorcontrib>Lu, Fangjun</creatorcontrib><creatorcontrib>Zhang, Shu</creatorcontrib><creatorcontrib>Li, Qingxin</creatorcontrib><creatorcontrib>Xiao, Shuo</creatorcontrib><creatorcontrib>Guo, Zhiwei</creatorcontrib><creatorcontrib>Xie, Shenglun</creatorcontrib><creatorcontrib>Zhang, Yanqiu</creatorcontrib><creatorcontrib>Yi, Qibin</creatorcontrib><creatorcontrib>Zhao, Yi</creatorcontrib><creatorcontrib>Zhang, Zhen</creatorcontrib><creatorcontrib>Liu, Jiacong</creatorcontrib><creatorcontrib>Zheng, Chao</creatorcontrib><creatorcontrib>Wang, Ping</creatorcontrib><title>Insight-HXMT dedicated 33-day observation of SGR J1935+2154 II. Burst Spectral Catalog</title><title>arXiv.org</title><description>Since April 28, 2020, Insight-HXMT has implemented a dedicated observation on the magnetar SGR J1935+2154. Thanks to the wide energy band (1-250 keV) and high sensitivity of Insight-HXMT, we obtained 75 bursts from SGR J1935+2154 during a month-long activity episode after the emission of FRB 200428. Here, we report the detailed time-integrated spectral analysis of these bursts and the statistical distribution of the spectral parameters. We find that for 15%(11/75) of SGR J1935+2154 bursts, the CPL model is preferred, and most of them occurred in the latter part of this active epoch. In the cumulative fluence distribution, we find that the fluence of bursts in our sample is about an order of magnitude weaker than that of Fermi/GBM, but follows the same power law distribution. Finally, we find a burst with similar peak energy to the time-integrated spectrum of the X-ray burst associated with FRB 200428 (FRB 200428-Associated Burst), but the low energy index is harder.</description><subject>Bursts</subject><subject>Emission analysis</subject><subject>Energy bands</subject><subject>Fluence</subject><subject>Magnetars</subject><subject>Physics - High Energy Astrophysical Phenomena</subject><subject>Spectrum analysis</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GOX</sourceid><recordid>eNotj01Lw0AYhBdBsNT-AE8ueJTEd9_9yh61aBupCG0Rb2GbbGpKberupth_bz88DcwMwzyE3DBIRSYlPFj_2-xSRBApaK7MBekh5yzJBOIVGYSwAgBUGqXkPfKRb0Kz_IrJ-PNtTitXNaWNrqKcJ5Xd03YRnN_Z2LQb2tZ0NprSV2a4vEcmBc3zlD51PkQ627oyerumQxvtul1ek8varoMb_GufTF-e58NxMnkf5cPHSWIlimSBgsk6s0K7UiijTcatEyCNU0JpkAy11oAH2zlg8piXiqu6MlBDzfvk9jx6Qi62vvm2fl8c0YsT-qFxd25sffvTuRCLVdv5zeFRgUoyA1wzwf8AbcdW_A</recordid><startdate>20220415</startdate><enddate>20220415</enddate><creator>Cai, Ce</creator><creator>Xiong, Shaolin</creator><creator>Lin, Lin</creator><creator>Li, Chengkui</creator><creator>Zhang, Shuangnan</creator><creator>Xue, Wangchen</creator><creator>Tuo, Youli</creator><creator>Li, Xiaobo</creator><creator>Ge, Mingyu</creator><creator>Zhao, Haisheng</creator><creator>Song, Liming</creator><creator>Lu, Fangjun</creator><creator>Zhang, Shu</creator><creator>Li, Qingxin</creator><creator>Xiao, Shuo</creator><creator>Guo, Zhiwei</creator><creator>Xie, Shenglun</creator><creator>Zhang, Yanqiu</creator><creator>Yi, Qibin</creator><creator>Zhao, Yi</creator><creator>Zhang, Zhen</creator><creator>Liu, Jiacong</creator><creator>Zheng, Chao</creator><creator>Wang, Ping</creator><general>Cornell University Library, arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>GOX</scope></search><sort><creationdate>20220415</creationdate><title>Insight-HXMT dedicated 33-day observation of SGR J1935+2154 II. 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| subjects | Bursts Emission analysis Energy bands Fluence Magnetars Physics - High Energy Astrophysical Phenomena Spectrum analysis |
| title | Insight-HXMT dedicated 33-day observation of SGR J1935+2154 II. Burst Spectral Catalog |
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