The Minimum Variation Timescales of X-Ray Bursts from SGR J1935+2154

被引：15

作者：

Xiao, Shuo ^{[1
,2
]}

Yang, Jiao-Jiao ^{[1
,2
]}

Luo, Xi-Hong ^{[1
,2
]}

Xiong, Shao-Lin ^{[3
]}

Qu, Yuan-Hong ^{[4
,5
]}

Zhang, Shuang-Nan ^{[3
,6
]}

Xue, Wang-Chen ^{[3
,6
]}

Li, Xiao-Bo ^{[3
]}

Tuo, You-Li ^{[7
]}

Dong, Ai-Jun ^{[1
,2
]}

Zhao, Ru-Shuang ^{[1
,2
]}

Dang, Shi-Jun ^{[1
,2
]}

Shang, Lun-Hua ^{[1
,2
]}

Ma, Qing-Bo ^{[1
,2
]}

Cai, Ce ^{[8
]}

Wang, Jin ^{[3
]}

Wang, Ping ^{[3
]}

Li, Cheng-Kui ^{[3
]}

Yi, Shu-Xu ^{[3
]}

Zhang, Zhen ^{[3
]}

Ge, Ming-Yu ^{[3
]}

Zheng, Shi-Jie ^{[3
]}

Song, Li-Ming ^{[3
]}

Peng, Wen-Xi ^{[3
]}

Wen, Xiang-Yang ^{[3
]}

Li, Xin-Qiao ^{[3
]}

An, Zheng-Hua ^{[3
]}

Xu, Xin ^{[1
,2
]}

Wang, Yue ^{[3
,6
]}

Zheng, Chao ^{[3
,6
]}

Zhang, Yan-Qiu ^{[3
,6
]}

Liu, Jia-Cong ^{[3
,6
]}

Zhang, Bin ^{[1
,2
]}

Xie, Wei ^{[1
,2
]}

Feng, Jian-Chao ^{[1
,2
]}

Wang, De-Hua ^{[1
,2
]}

Zhi, Qi-Jun ^{[1
,2
]}

机构：

[1] Guizhou Normal Univ, Guizhou Prov Key Lab Radio Astron & Data Proc, Guiyang 550001, Peoples R China

[2] Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China

[3] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China

[4] Univ Nevada, Nevada Ctr Astrophys, Las Vegas, NV 89154 USA

[5] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA

[6] Chinese Acad Sci, Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[7] Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany

[8] Hebei Normal Univ, Coll Phys, 20 South Erhuan Rd, Shijiazhuang 050024, Peoples R China

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2023年 / 268卷 / 01期

基金：

中国国家自然科学基金;

关键词：

ENERGY-DEPENDENCE; VARIABILITY; MAGNETAR; DISCOVERY; BRIGHT; LONG; SPECTRA; ONBOARD; FLARE; MODEL;

D O I：

10.3847/1538-4365/ace77c

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The minimum variation timescale (MVT) of soft gamma-ray repeaters can be an important probe to estimate the emission region in pulsar-like models, as well as the Lorentz factor and radius of the possible relativistic jet in gamma-ray burst (GRB)-like models, thus revealing their progenitors and physical mechanisms. In this work, we systematically study the MVTs of hundreds of X-ray bursts (XRBs) from SGR J1935+2154 observed by Insight-HXMT, GECAM, and Fermi/Gamma-ray Burst Monitor from 2014 July to 2022 January through the Bayesian block algorithm. We find that the MVTs peak at & SIM;2 ms, corresponding to a light-travel time size of about 600 km, which supports the magnetospheric origin in pulsar-like models. The shock radius and the Lorentz factor of the jet are also constrained in GRB-like models. Interestingly, the MVT of the XRB associated with FRB 200428 is & SIM;70 ms, which is longer than that of most bursts and implies its special radiation mechanism. In addition, the median of MVTs is 7 ms, shorter than the median MVTs of 40 ms and 480 ms for short GRBs or long GRBs, respectively. However, the MVT is independent of duration, similar to GRBs. Finally, we investigate the energy dependence of MVT and suggest that there is a marginal evidence for a power-law relationship like GRBs, but the rate of variation is at least about an order of magnitude smaller. These features may provide an approach to identify bursts with a magnetar origin.

引用

页数：9

共 51 条

[1] Gravitational Waves and Gamma-Rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A [J].

Abbott, B. P. ;

Abbott, R. ;

Abbott, T. D. ;

Acernese, F. ;

Ackley, K. ;

Adams, C. ;

Adams, T. ;

Addesso, P. ;

Adhikari, R. X. ;

Adya, V. B. ;

Affeldt, C. ;

Afrough, M. ;

Agarwal, B. ;

Agathos, M. ;

Agatsuma, K. ;

Aggarwal, N. ;

Aguiar, O. D. ;

Aiello, L. ;

Ain, A. ;

Ajith, P. ;

Allen, B. ;

Allen, G. ;

Allocca, A. ;

Aloy, M. A. ;

Altin, P. A. ;

Amato, A. ;

Ananyeva, A. ;

Anderson, S. B. ;

Anderson, W. G. ;

Angelova, S. V. ;

Antier, S. ;

Appert, S. ;

Arai, K. ;

Araya, M. C. ;

Areeda, J. S. ;

Arnaud, N. ;

Arun, K. G. ;

Ascenzi, S. ;

Ashton, G. ;

Ast, M. ;

Aston, S. M. ;

Astone, P. ;

Atallah, D. V. ;

Aufmuth, P. ;

Aulbert, C. ;

AultONeal, K. ;

Austin, C. ;

Avila-Alvarez, A. ;

Babak, S. ;

Bacon, P. .

ASTROPHYSICAL JOURNAL LETTERS, 2017, 848 (02)

[2] Fermi-LAT Observations of the Gamma-Ray Burst GRB 130427A [J].

Ackermann, M. ;

Ajello, M. ;

Asano, K. ;

Atwood, W. B. ;

Axelsson, M. ;

Baldini, L. ;

Ballet, J. ;

Barbiellini, G. ;

Baring, M. G. ;

Bastieri, D. ;

Bechtol, K. ;

Bellazzini, R. ;

Bissaldi, E. ;

Bonamente, E. ;

Bregeon, J. ;

Brigida, M. ;

Bruel, P. ;

Buehler, R. ;

Burgess, J. Michael ;

Buson, S. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Caraveo, P. A. ;

Cecchi, C. ;

Chaplin, V. ;

Charles, E. ;

Chekhtman, A. ;

Cheung, C. C. ;

Chiang, J. ;

Chiaro, G. ;

Ciprini, S. ;

Claus, R. ;

Cleveland, W. ;

Cohen-Tanugi, J. ;

Collazzi, A. ;

Cominsky, L. R. ;

Connaughton, V. ;

Conrad, J. ;

Cutini, S. ;

D'Ammando, F. ;

de Angelis, A. ;

DeKlotz, M. ;

de Palma, F. ;

Dermer, C. D. ;

Desiante, R. ;

Diekmann, A. ;

Di Venere, L. ;

Drell, P. S. ;

Drlica-Wagner, A. ;

Favuzzi, C. .

SCIENCE, 2014, 343 (6166) :42-47

[3] A Flaring Magnetar in FRB 121102? [J].

Beloborodov, Andrei M. .

ASTROPHYSICAL JOURNAL LETTERS, 2017, 843 (02)

[4] A fast radio burst associated with a Galactic magnetar [J].

Bochenek, C. D. ;

Ravi, V. ;

Belov, K. V. ;

Hallinan, G. ;

Kocz, J. ;

Kulkarni, S. R. ;

McKenna, D. L. .

NATURE, 2020, 587 (7832) :59-+

[5] Terrestrial gamma-ray flashes in the Fermi era: Improved observations and analysis methods [J].

Briggs, Michael S. ;

Xiong, Shaolin ;

Connaughton, Valerie ;

Tierney, Dave ;

Fitzpatrick, Gerard ;

Foley, Suzanne ;

Grove, J. Eric ;

Chekhtman, Alexandre ;

Gibby, Melissa ;

Fishman, Gerald J. ;

McBreen, Shelia ;

Chaplin, Vandiver L. ;

Guiriec, Sylvain ;

Layden, Emily ;

Bhat, P. N. ;

Hughes, Maximilian ;

Greiner, Jochen ;

von Kienlin, Andreas ;

Kippen, R. Marc ;

Meegan, Charles A. ;

Paciesas, William S. ;

Preece, Robert D. ;

Wilson-Hodge, Colleen ;

Holzworth, Robert H. ;

Hutchins, Michael L. .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2013, 118 (06) :3805-3830

[6] SHORT VERSUS LONG AND COLLAPSARS VERSUS NON-COLLAPSARS: A QUANTITATIVE CLASSIFICATION OF GAMMA-RAY BURSTS [J].

Bromberg, Omer ;

Nakar, Ehud ;

Piran, Tsvi ;

Sari, Re'em .

ASTROPHYSICAL JOURNAL, 2013, 764 (02)

[7] An Insight-HXMT Dedicated 33 day Observation of SGR J1935+2154. I. Burst Catalog [J].

Cai, Ce ;

Xue, Wang-Chen ;

Li, Cheng-Kui ;

Xiong, Shao-Lin ;

Zhang, Shuang-Nan ;

Lin, Lin ;

Li, Xiao-Bo ;

Ge, Ming-Yu ;

Zhao, Hai-Sheng ;

Song, Li-Ming ;

Lu, Fang-Jun ;

Zhang, Shu ;

Zhang, Yan-Qiu ;

Xiao, Shuo ;

Tuo, You-Li ;

Yi, Qi-Bin ;

Wei Guo, Zhi ;

Lun Xie, Sheng ;

Zhao, Yi ;

Zhang, Zhen ;

Li, Qing-Xin ;

Liu, Jia-Cong ;

Zheng, Chao ;

Wang, Ping .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2022, 260 (02)

[8] GRB minimum variability timescale with Insight-HXMT and Swift Implications for progenitor models, dissipation physics, and GRB classifications [J].

Camisasca, A. E. ;

Guidorzi, C. ;

Amati, L. ;

Frontera, F. ;

Song, X. Y. ;

Xiao, S. ;

Xiong, S. L. ;

Zhang, S. N. ;

Margutti, R. ;

Kobayashi, S. ;

Mundell, C. G. ;

Ge, M. Y. ;

Gomboc, A. ;

Jia, S. M. ;

Jordana-Mitjans, N. ;

Li, C. K. ;

Li, X. B. ;

Maccary, R. ;

Shrestha, M. ;

Xue, W. C. ;

Zhang, S. .

ASTRONOMY & ASTROPHYSICS, 2023, 671

[9] The Medium Energy X-ray telescope (ME) onboard the Insight-HXMT astronomy satellite [J].

Cao, XueLei ;

Jiang, WeiChun ;

Meng, Bin ;

Zhang, WanChang ;

Luo, Tao ;

Yang, Sheng ;

Zhang, ChunLei ;

Gu, YuDong ;

Sun, Liang ;

Liu, XiaoJing ;

Yang, JiaWei ;

Li, Xian ;

Tan, Ying ;

Liu, ShaoZhen ;

Du, YuanYuan ;

Lu, FangJun ;

Xu, YuPeng ;

Guan, Ju ;

Zhang, ShuangNan ;

Wang, HuanYu ;

Li, TiPei ;

Zhang, ChengMo ;

Wen, XiangYang ;

Qu, JinLu ;

Song, LiMing ;

Li, XiaoBo ;

Ge, MingYu ;

Zhou, YuPeng ;

Xiong, ShaoLin ;

Zhang, Shu ;

Zhang, YongJie ;

Cheng, ZeHao ;

Zhang, Fei ;

Li, MaoShun ;

Liang, XiaoHua ;

Gao, Min ;

Yang, EnBo ;

Liu, XiaoHang ;

Liu, HongWei ;

Yang, YiJung ;

Zhang, Fan .

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2020, 63 (04)

[10] The Low Energy X-ray telescope (LE) onboard the Insight-HXMT astronomy satellite [J].

Chen, Yong ;

Cui, WeiWei ;

Li, Wei ;

Wang, Juan ;

Xu, YuPeng ;

Lu, FangJun ;

Wang, YuSa ;

Chen, TianXiang ;

Han, DaWei ;

Hu, Wei ;

Zhang, Yi ;

Huo, Jia ;

Yang, YanJi ;

Li, MaoShun ;

Lu, Bo ;

Zhang, ZiLiang ;

Li, TiPei ;

Zhang, ShuangNan ;

Xiong, ShaoLin ;

Zhang, Shu ;

Xue, RongFeng ;

Zhao, XiaoFan ;

Zhu, Yue ;

Zhu, YuXuan ;

Liu, HongWei ;

Yang, YiJung ;

Zhang, Fan .

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2020, 63 (04)

← 1 2 3 4 5 6 →