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	Spectroscopic analysis of tungsten spectra in extreme-ultraviolet range of 10-480 ? observed from EAST tokamak with full tungsten divertor 期刊论文 OAI收割 PHYSICA SCRIPTA, 2024, 卷号: 99 作者: Zhang, Wenmin; Zhang, Ling; Morita, Shigeru; Cheng, Yunxin; Zhang, Fengling \| 收藏 \| 浏览/下载：15/0 \| 提交时间：2024/11/20 EAST plasma tungsten burst extreme ultraviolet spectra tungsten lines
	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 \| 收藏 \| 浏览/下载：44/0 \| 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.
	Supernova neutrino detection on earth 期刊论文 OAI收割 CHINESE PHYSICS C, 2010, 卷号: 34, 期号: 2, 页码: 257-261 作者: Guo Xin-Heng; Huang Ming-Yang; Young Bing-Lin; Guo, XH , Beijing Normal Univ, Coll Nucl Sci & Technol, Beijing 100875, Peoples R China \| 收藏 \| 浏览/下载：28/0 \| 提交时间：2012/08/02 Core-collapse Supernovae Explosion Mechanism Ii Supernovae Monte-carlo Oscillations Matter Spectroscopy Spectra Burst
	Fermi Observations of High-Energy Gamma-Ray Emission from GRB 080916C 期刊论文 OAI收割 SCIENCE, 2009, 卷号: 323, 期号: 5922, 页码: 1688-1693 作者: Abdo, A. A.; Ackermann, M.; Arimoto, M.; Asano, K.; Atwood, W. B. 收藏 \| 浏览/下载：81/0 \| 提交时间：2011/12/08 BURST SPECTRA BATSE OBSERVATIONS SHOCK MODEL NEUTRINOS COMPONENT PHOTONS
	Interpretation of solar microwave C type burst spectra in terms of magnetic nonhomogeneity 期刊论文 OAI收割 SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY, 1997, 卷号: 40, 期号: 12, 页码: 1325—1330 Yao, JM; Yu, XF; Wei, FS 收藏 \| 浏览/下载：16/0 \| 提交时间：2013/02/05 spherical symmetric nonhomogeneity gyrosynchrotron spectra twists and turns of spectra flux density drop at lower frequencies solar radio burst C type spectra