Individual and averaged power density spectra of X-ray bursts from SGR J1935+2154: quasi-periodic oscillation search and slopes

被引：2

作者：

Xiao, Shuo ^{[1
,2
]}

Li, Xiao-Bo ^{[3
]}

Xue, Wang-Chen ^{[3
]}

Xiong, Shao-Lin ^{[3
]}

Zhang, Shuang-Nan ^{[3
,4
]}

Peng, Wen-Xi ^{[3
]}

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

Tuo, You-Li ^{[5
]}

Cai, Ce ^{[6
]}

Luo, Xi-Hong ^{[7
]}

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

Wang, Yue ^{[4
]}

Zheng, Chao ^{[3
,4
]}

Zhang, Yan-Qiu ^{[3
,4
]}

Liu, Jia-Cong ^{[3
,4
]}

Tan, Wen-Jun ^{[3
,4
]}

Wang, Chen-Wei ^{[3
,4
]}

Wang, Ping ^{[3
]}

Li, Cheng-Kui ^{[3
]}

Yi, Shu-Xu ^{[3
]}

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

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

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

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

Xie, Wei ^{[1
,2
]}

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

Zhang, Bin ^{[1
,2
]}

Zhang, Zhen ^{[3
]}

Ge, Ming-Yu ^{[3
]}

Zheng, Shi-Jie ^{[3
]}

Song, Li-Ming ^{[3
]}

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

机构：

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

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

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

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

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

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

[7] Chongqing Univ, Dept Phys, Chongqing 400044, Peoples R China

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2024年 / 527卷 / 04期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

stars:; magnetars; SHORT RECURRING BURSTS; 2004; HYPERFLARE; GIANT-FLARE; ENERGY-DEPENDENCE; VARIABILITY; DISCOVERY; PEAK; COMPONENTS; TAIL;

D O I：

10.1093/mnras/stae009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The study of quasi-periodic oscillations (QPOs) and power density spectra (PDSs) continuum properties can help shed light on the still elusive emission physics of magnetars and as a window into the interiors of neutron stars using asteroseismology. In this work, we employ a PDS method to search for the QPOs in the hundreds of X-ray bursts from SGR J1935+2154 observed by Insight-HXMT, GECAM, and Fermi/GBM from 2014 July to 2022 January. Although no definitive QPO signal (significance >3 sigma) is detected in individual bursts or the averaged periodogram of the bursts grouped by duration, we identify several bursts exhibiting features at similar to 40 Hz, attributed to the the proximity intervals between adjacent pulses and consistent with that reported in the X-ray burst associated with FRB 200428. We investigate the PDS continuum properties and find that the distribution of the PDS slope in the simple power-law model peaks at similar to 2.5, which is consistent with other magnetars but higher than 5/3 commonly seen in gamma-ray bursts. Besides, the distribution of the break frequency in the broken power-law model peaks at similar to 60 Hz. Finally, we report that the power-law index of PDS has an anti-correlation and power-law dependence on the burst duration as well as the minimum variation time-scale.

引用

页码：11915 / 11924

页数：10

共 41 条

[1] 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

[2] Very-high-frequency oscillations in the main peak of a magnetar giant flare [J].

Castro-Tirado, A. J. ;

Ostgaard, N. ;

Gogus, E. ;

Sanchez-Gil, C. ;

Pascual-Granado, J. ;

Reglero, V. ;

Mezentsev, A. ;

Gabler, M. ;

Marisaldi, M. ;

Neubert, T. ;

Budtz-Jorgensen, C. ;

Lindanger, A. ;

Sarria, D. ;

Kuvvetli, I. ;

Cerda-Duran, P. ;

Navarro-Gonzalez, J. ;

Font, J. A. ;

Zhang, B. -b. ;

Lund, N. ;

Oxborrow, C. A. ;

Brandt, S. ;

Caballero-Garcia, M. D. ;

Carrasco-Garcia, I. M. ;

Castellon, A. ;

Castro Tirado, M. A. ;

Christiansen, F. ;

Eyles, C. J. ;

Fernandez-Garcia, E. ;

Genov, G. ;

Guziy, S. ;

Hu, Y. -D. ;

Nicuesa Guelbenzu, A. ;

Pandey, S. B. ;

Peng, Z. -K. ;

Perez del Pulgar, C. ;

Reina Terol, A. J. ;

Rodriguez, E. ;

Sanchez-Ramirez, R. ;

Sun, T. ;

Ullaland, K. ;

Yang, S. .

NATURE, 2021, 600 (7890) :621-+

[3] A SEARCH FOR PULSATIONS IN SHORT GAMMA-RAY BURSTS TO CONSTRAIN THEIR PROGENITORS [J].

Dichiara, S. ;

Guidorzi, C. ;

Frontera, F. ;

Amati, L. .

ASTROPHYSICAL JOURNAL, 2013, 777 (02)

[4] Search for millisecond periodicities in type I X-ray bursts of the Rapid Burster [J].

Fox, DW ;

Lewin, WHG ;

Rutledge, RE ;

Morgan, EH ;

Guerriero, R ;

Bildsten, L ;

van der Klis, M ;

van Paradijs, J ;

Moore, CB ;

Dotani, T ;

Asai, K .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2001, 321 (04) :776-782

[5] STEPWISE FILTER CORRELATION METHOD AND EVIDENCE OF SUPERPOSED VARIABILITY COMPONENTS IN GAMMA-RAY BURST PROMPT EMISSION LIGHT CURVES [J].

Gao, He ;

Zhang, Bin-Bin ;

Zhang, Bing .

ASTROPHYSICAL JOURNAL, 2012, 748 (02)

[6] THE ENERGY DEPENDENCE OF GRB MINIMUM VARIABILITY TIMESCALES [J].

Golkhou, V. Zach ;

Butler, Nathaniel R. ;

Littlejohns, Owen M. .

ASTROPHYSICAL JOURNAL, 2015, 811 (02)

[7] UNCOVERING THE INTRINSIC VARIABILITY OF GAMMA-RAY BURSTS [J].

Golkhou, Vahid Z. ;

Butler, Nathaniel R. .

ASTROPHYSICAL JOURNAL, 2014, 787 (01)

[8] Individual power density spectra of Swift gamma-ray bursts [J].

Guidorzi, C. ;

Dichiara, S. ;

Amati, L. .

ASTRONOMY & ASTROPHYSICS, 2016, 589

[9] MEPSA: A flexible peak search algorithm designed for uniformly spaced time series [J].

Guidorzi, C. .

ASTRONOMY AND COMPUTING, 2015, 10 :54-60

[10] Average power density spectrum of Swift long gamma-ray bursts in the observer and in the source-rest frames [J].

Guidorzi, C. ;

Margutti, R. ;

Amati, L. ;

Campana, S. ;

Orlandini, M. ;

Romano, P. ;

Stamatikos, M. ;

Tagliaferri, G. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2012, 422 (02) :1785-1803

← 1 2 3 4 5 →