中国科学院机构知识库网格系统: 检索

A New Solar Hard X-ray Image Reconstruction Algorithm for ASO-S/HXI Based on Deep Learning 期刊论文 OAI收割
SOLAR PHYSICS, 2024, 卷号: 299, 期号: 11
作者: Xia, Yuehan

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收藏 | 浏览/下载：11/0 | 提交时间：2024/11/25

X-ray bursts Solar flares Machine learning Hard X-ray imaging

Partial Disruption of a Planet around a White Dwarf: The Effect of Perturbations from the Remnant Planet on the Accretion 期刊论文 OAI收割
Astrophysical Journal, 2024, 卷号: 974, 期号: 1, 页码: 12100
作者: Abdusattar Kurban; Xia Zhou; Na Wang; Yong-Feng Huang; Yu-Bin Wang

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收藏 | 浏览/下载：2/0 | 提交时间：2025/06/05

poynting-robertson drag x-ray-emission tidal disruption giant planets black-holes debris discs circumstellar debris bursts interaction 2-planet systems mass planets Astronomy & Astrophysics

Multiband analyses of the bright GRB 230812B and the associated SN2023pel 期刊论文 OAI收割
Monthly Notices of the Royal Astronomical Society, 2024, 卷号: 530, 期号: 1, 页码: 1-19
作者: T. Hussenot-Desenonges; T. Wouters; N. Guessoum; I. Abdi; A. Abulwf a

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收藏 | 浏览/下载：1/0 | 提交时间：2025/06/05

methods: statistical techniques: photometric techniques: spectroscopic gamma-ray burst: individual: GRB 230812B gamma-ray bursts transients: supernovae gamma-ray burst light curves data release x-ray afterglows supernova swift long emission spectra Astronomy & Astrophysics

A burst storm from the repeating FRB 20200120E in an M81 globular cluster 期刊论文 OAI收割
Monthly Notices of the Royal Astronomical Society, 2023, 卷号: 520, 期号: 2, 页码: 2281-2305
作者: Nimmo, K.; Hessels, J. W. T.; Snelders, M. P.; Karuppusamy, R.; Hewitt, D. M.

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收藏 | 浏览/下载：1/0 | 提交时间：2024/06/23

fast radio bursts radio continuum: transients fast radio-burst giant pulses crab pulsar host galaxy x-ray emission localization environment classifier Astronomy & Astrophysics

The Wide Field Monitor onboard the Chinese-European X-ray mission eXTP 期刊论文 OAI收割
SPACE TELESCOPES AND INSTRUMENTATION 2022: ULTRAVIOLET TO GAMMA RAY, 2022, 卷号: 12181, 页码: 121811Y
作者: eXTP

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收藏 | 浏览/下载：10/0 | 提交时间：2023/11/09

X-ray timing X-ray spectroscopy compact objects: black holes neutron stars and white dwarfs gamma-ray bursts X-ray bursts gravitational wave events silicon drift detectors coded mask imaging

Periodicity Search on X-Ray Bursts of SGR J1935+2154 Using 8.5 yr of Fermi/GBM Data 期刊论文 OAI收割
The Astrophysical Journal, 2021, 卷号: 923, 页码: L30
作者: HXMT

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收藏 | 浏览/下载：25/0 | 提交时间：2022/02/08

2008 1471 Astrophysics - High Energy Astrophysical Phenomena Abstract: We performed a systematic search for X-ray bursts of the SGR J1935+2154 using the Fermi Gamma-ray Burst Monitor continuous data dated from 2013 January to 2021 October. Eight bursting phases, which consist of a total of 353 individual bursts, are identified. We further analyze the periodic properties of our sample using the Lomb-Scargle periodogram. The result suggests that those bursts exhibit a period of ~238 days with a ~63.2% duty cycle. Based on our analysis, we further predict two upcoming active windows of the X-ray bursts. Since 2021 July, the beginning date of our first prediction has been confirmed by the ongoing X-ray activities of the SGR J1935+2154.

Nondetection of the Gamma-Ray Burst X-Ray Emission Line: The Down-Comptonization Effect 期刊论文 OAI收割
ASTROPHYSICAL JOURNAL, 2020, 卷号: 900, 期号: 1, 页码: 5
作者: Liu JY(刘杰英); Mao JR(毛基荣)

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收藏 | 浏览/下载：30/0 | 提交时间：2020/10/26

Gamma-ray bursts X-ray detectors

Overview to the Hard X-ray Modulation Telescope (Insight-HXMT) Satellite 期刊论文 OAI收割
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2020, 卷号: 63, 期号: 4, 页码: 18
作者: Zhang, Shuang-Nan; Li, TiPei; Lu, FangJun; Song, LiMing; Xu, YuPeng

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收藏 | 浏览/下载：87/0 | 提交时间：2021/12/06

X- and gamma-ray telescopes and instrumentation neutron stars black holes X-ray binaries gamma-ray bursts

Overview to the Hard X-ray Modulation Telescope (Insight-HXMT) Satellite 期刊论文 OAI收割
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2020, 卷号: 63, 期号: 4, 页码: 18
作者: Zhang, Shuang-Nan; Li, TiPei; Lu, FangJun; Song, LiMing; Xu, YuPeng

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收藏 | 浏览/下载：73/0 | 提交时间：2021/12/06

X- and gamma-ray telescopes and instrumentation neutron stars black holes X-ray binaries gamma-ray bursts

No pulsed radio emission during a bursting phase of a Galactic magnetar 期刊论文 OAI收割
Nature, 2020, 卷号: 587, 页码: 63-65
作者: HXMT

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收藏 | 浏览/下载：49/0 | 提交时间：2022/02/08

Astrophysics - High Energy Astrophysical Phenomena Abstract: Fast radio bursts (FRBs) are millisecond-duration radio transients of unknown physical origin observed at extragalactic distances^1-3. It has long been speculated that magnetars are the engine powering repeating bursts from FRB sources^4-13, but no convincing evidence has been collected so far¹⁴. Recently, the Galactic magnetar SRG 1935+2154 entered an active phase by emitting intense soft íray bursts¹⁵. One FRB-like event with two peaks (FRB 200428) and a luminosity slightly lower than the faintest extragalactic FRBs was detected from the source, in association with a soft íray/hard-X-ray flare^18-21. Here we report an eight-hour targeted radio observational campaign comprising four sessions and assisted by multi-wavelength (optical and hard-X-ray) data. During the third session, 29 soft-íray repeater (SGR) bursts were detected in íray energies. Throughout the observing period, we detected no single dispersed pulsed emission coincident with the arrivals of SGR bursts, but unfortunately we were not observing when the FRB was detected. The non-detection places a fluence upper limit that is eight orders of magnitude lower than the fluence of FRB 200428. Our results suggest that FRB-SGR burst associations are rare. FRBs may be highly relativistic and geometrically beamed, or FRB-like events associated with SGR bursts may have narrow spectra and characteristic frequencies outside the observed band. It is also possible that the physical conditions required to achieve coherent radiation in SGR bursts are difficult to satisfy, and that only under extreme conditions could an FRB be associated with an SGR burst.