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相关论文: EP250827b/SN 2025wkm: An X-ray Flash-Supernova Pow…

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Long gamma-ray bursts (LGRBs), including their subclasses of low-luminosity GRBs (LL-GRBs) and X-ray flashes (XRFs) characterized by low spectral peak energies, are known to be associated with broad-lined Type Ic supernovae (SNe Ic-BL),…

We present optical, radio, and X-ray observations of EP250108a/SN 2025kg, a broad-line Type Ic supernova (SN Ic-BL) accompanying an Einstein Probe (EP) fast X-ray transient (FXT) at $z=0.176$. EP250108a/SN 2025kg possesses a double-peaked…

Supernovae (SNe) associated with X-Ray Flashes (XRFs) are extremely rare. Therefore, the discovery of each new object in this class offers a unique opportunity to improve our understanding about their origins and potential connection with…

高能天体物理现象 · 物理学 2025-10-29 L. M. Roman Aguilar , M. C. Bersten

SN\,2025kg, linked to EP250108a, is among the brightest broad-lined Type Ic supernova (SN Ic-BL) known, showing unique helium absorptions, a late-time broad H$\alpha$, and an early bump. In this {\em{Letter}}, we propose a jet-cocoon origin…

高能天体物理现象 · 物理学 2025-11-26 Jin-Ping Zhu , Jian-He Zheng , Bing Zhang

X-ray Flash (XRF) 100316D, a nearby super-long under-luminous burst with a peak energy E_p \sim 20 keV, was detected by Swift and was found to be associated with an energetic supernova SN 2010bh. Both the spectral and the temporal behavior…

高能天体物理现象 · 物理学 2013-01-18 Yi-Zhong Fan , Bin-Bin Zhang , Dong Xu , En-Wei Liang , Bing Zhang

We present James Webb Space Telescope (JWST) and Hubble Space Telescope (HST) observations of the counterpart of EP240801a, at z=1.67, the first fast X-ray transient (FXT) identified as an X-ray flash (XRF) by the Einstein Probe (EP) and…

We present multiband observations and analysis of EP240801a, a low-energy, extremely soft gamma-ray burst (GRB) discovered on August 1, 2024 by the Einstein Probe (EP) satellite, with a weak contemporaneous signal also detected by…

高能天体物理现象 · 物理学 2025-03-07 Shuai-Qing Jiang , Dong Xu , Agnes P. C. van Hoof , Wei-Hua Lei , Yuan Liu , Hao Zhou , Yong Chen , Shao-Yu Fu , Jun Yang , Xing Liu , Zi-Pei Zhu , Alexei V. Filippenko , Peter G. Jonker , A. S. Pozanenko , He Gao , Xue-Feng Wu , Bing Zhang , Gavin P Lamb , Massimiliano De Pasquale , Shiho Kobayashi , Franz Erik Bauer , Hui Sun , Giovanna Pugliese , Jie An , Valerio D'Elia , Johan P. U. Fynbo , WeiKang Zheng , Alberto J. C. Tirado , Yi-Han Iris Yin , Yuan-Chuan Zou , Adam T. Deller , N. S. Pankov , A. A. Volnova , A. S. Moskvitin , O. I. Spiridonova , D. V. Oparin , V. Rumyantsev , O. A. Burkhonov , Sh. A. Egamberdiyev , V. Kim , M. Krugov , A. M. Tatarnikov , R. Inasaridze , Andrew J. Levan , Daniele Bjørn Malesani , Maria E. Ravasio , Jonathan Quirola-Vásquez , Joyce N. D. van Dalen , Javi Sánchez-Sierras , Daniel Mata Sánchez , Stuart P. Littlefair , Jennifer A. Chacón , Manuel A. P. Torres , Ashley A. Chrimes , Nikhil Sarin , Antonio Martin-Carrillo , Vik Dhillon , Yi Yang , Thomas G. Brink , Rebecca L. Davies , Sheng Yang , Amar Aryan , Ting-Wan Chen , Albert K. H. Kong , Wen-Xiong Li , Rui-Zhi Li , Jirong Mao , Ignacio Pérez-García , Emilio J. Fernández-García , Moira Andrews , Joseph Farah , Zhou Fan , Estefania Padilla Gonzalez , D. Andrew Howell , Dieter Hartmann , Jing-Wei Hu , Páll Jakobsson , Cheng-Kui Li , Zhi-Xing Ling , Curtis McCully , Megan Newsome , Benjamin Schneider , Kaew Samaporn Tinyanont , Ning-Chen Sun , Giacomo Terreran , Qing-Wen Tang , Wen-Xin Wang , Jing-Jing Xu , Wei-Min Yuan , Bin-Bin Zhang , Hai-Sheng Zhao , Juan Zhang

X-ray flashes (XRFs) are fast X-ray transients thought to be softer analogs of gamma-ray bursts (GRBs). With its soft X-ray sensitivity, the Einstein Probe (EP) provides a unique opportunity to study these events. We report multiwavelength…

We present the results from an Hubble Space Telescope/ACS search for supernovae associated with X-ray flashes 020903, 040701, 040812 and 040916. We find strong evidence that XRF 020903 (z=0.25) was associated with a SN 1998bw-like supernova…

On May 27 2024, the Wide-field X-ray Telescope onboard the Einstein Probe (EP) mission detected enhanced X-ray emission from a new transient source in the Small Magellanic Cloud (SMC) during its commissioning phase. Prompt follow-up with…

Results of modeling the spectra of two supernovae SN 2008D and SN 2006aj related to the X-ray flash XRF 080109 and gamma-ray burst GRB / XRF 060218, respectively, are studied. The spectra were obtained with the 6-meter BTA telescope of the…

高能天体物理现象 · 物理学 2015-05-18 A. S. Moskvitin , E. Sonbas , V. V. Sokolov , T. A. Fatkhullin , A. J. Castro-Tirado

SN 1998bw is an unusual Type Ic supernova that may be associated with the $\gamma$-ray burst GRB 980425. We use a synchrotron self-absorption model for its radio emission to deduce that the synchrotron-emitting gas is expanding into a…

天体物理学 · 物理学 2009-10-31 Zhi-Yun Li , Roger A. Chevalier

We present the discovery of a peculiar X-ray transient, EP241021a, by the Einstein Probe (EP) mission, and the results from multiwavelength follow-up observations. The transient was first detected with the Wide-field X-ray Telescope as an…

We report on X-ray spectral evolution of the nearby Type IIn supernova (SN) 2005ip, based on Chandra and Swift observations covering from ~1 to 6 years after the explosion. X-ray spectra in all epochs are well fitted by a thermal emission…

高能天体物理现象 · 物理学 2015-06-18 Satoru Katsuda , Keiichi Maeda , Takaya Nozawa , David Pooley , Stefan Immler

Stellar flares are an intense stellar activity that can significantly impact the atmospheric composition of the surrounding planets and even the possible existence of life. During such events, the radiative energy of the star is primarily…

Observations of fast X-ray transients (FXRTs) with the Einstein Probe have successfully led to the discovery of some unusual extragalactic optical transients. EP241021a is a newly discovered FXRT that was featured by a significant bump…

高能天体物理现象 · 物理学 2025-08-15 Guang-Lei Wu , Yun-Wei Yu , Liang-Duan Liu , Zi-Gao Dai , Wei-Hua Lei , Xue-Feng Wu , Dong Xu , Bing Zhang , Jin-Ping Zhu , Yuan-Chuan Zou

We present a multi-wavelength analysis of the fast X-ray transient EP 241021a, discovered by the Wide-field X-ray Telescope aboard the \emph{Einstein Probe} satellite on 2024 October 21. The event was not detected in gamma-rays. Follow-up…

Core-collapse supernovae are of particular interest in multi-messenger astronomy due to their potential to accelerate cosmic rays and produce high-energy neutrinos. One such supernova is the recent SN2023ixf located in M101 (the Pinwheel…

高能天体物理现象 · 物理学 2025-07-10 Alicia Mand , Justin Vandenbroucke , Jessie Thwaites , Sam Hori , Aswathi Balagopal

We report the discovery of a peculiar X-ray transient, EP240408a, by Einstein Probe (EP) and follow-up studies made with EP, Swift, NICER, GROND, ATCA and other ground-based multi-wavelength telescopes. The new transient was first detected…

高能天体物理现象 · 物理学 2024-10-30 Wenda Zhang , Weimin Yuan , Zhixing Ling , Yong Chen , Nanda Rea , Arne Rau , Zhiming Cai , Huaqing Cheng , Francesco Coti Zelati , Lixin Dai , Jingwei Hu , Shumei Jia , Chichuan Jin , Dongyue Li , Paul O'Brien , Rongfeng Shen , Xinwen Shu , Shengli Sun , Xiaojin Sun , Xiaofeng Wang , Lei Yang , Bing Zhang , Chen Zhang , Shuang-Nan Zhang , Yonghe Zhang , Jie An , David Buckley , Alexis Coleiro , Bertrand Cordier , Liming Dou , Rob Eyles-Ferris , Zhou Fan , Hua Feng , Shaoyu Fu , Johan P. U. Fynbo , Lluis Galbany , Saurabh W. Jha , Shuaiqing Jiang , Albert Kong , Erik Kuulkers , Weihua Lei , Wenxiong Li , Bifang Liu , Mingjun Liu , Xing Liu , Yuan Liu , Zhu Liu , Chandreyee Maitra , Alessio Marino , Itumeleng Monageng , Kirpal Nandra , Jeremy Sanders , Roberto Soria , Lian Tao , Junfeng Wang , Song Wang , Tinggui Wang , Zhongxiang Wang , Qingwen Wu , Xuefeng Wu , Dong Xu , Yanjun Xu , Suijian Xue , Yongquan Xue , Zijian Zhang , Zipei Zhu , Hu Zou , Congying Bao , Fansheng Chen , Houlei Chen , Tianxiang Chen , Wei Chen , Yehai Chen , Yifan Chen , Chenzhou Cui , Weiwei Cui , Yanfeng Dai , Dongwei Fan , Ju Guan , Dawei Han , Dongjie Hou , Haibo Hu , Maohai Huang , Jia Huo , Zhenqing Jia , Bowen Jiang , Ge Jin , Chengkui Li , Junfei Li , Longhui Li , Maoshun Li , Wei Li , Zhengda Li , Tianying Lian , Congzhan Liu , Heyang Liu , Huaqiu Liu , Fangjun Lu , Laidan Luo , Jia Ma , Xuan Mao , Haiwu Pan , Xin Pan , Liming Song , Hui Sun , Yunyin Tan , Qingjun Tang , Yihan Tao , Hao Wang , Juan Wang , Lei Wang , Wenxin Wang , Yilong Wang , Yusa Wang , Qinyu Wu , Haitao Xu , Jingjing Xu , Xinpeng Xu , Yunfei Xu , Zhao Xu , Changbin Xue , Yulong Xue , Ailiang Yan , Haonan Yang , Xiongtao Yang , Yanji Yang , Juan Zhang , Mo Zhang , Wenjie Zhang , Zhen Zhang , Zhen Zhang , Ziliang Zhang , Donghua Zhao , Haisheng Zhao , Xiaofan Zhao , Zijian Zhao , Hongyan Zhou , Yilin Zhou , Yuxuan Zhu , Zhencai Zhu
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