The Astrophysical Journal Letters (Jan 2025)
Multi-instrument Search for Gamma-Ray Counterpart of X-Ray Transients Detected by EP/WXT
- Yan-Qiu Zhang,
- Wang-Chen Xue,
- Jin-Peng Zhang,
- Ce Cai,
- Shao-Lin Xiong,
- Cheng-Kui Li,
- Yuan Liu,
- Chen-Wei Wang,
- Hao-Xuan Guo,
- Shuo Xiao,
- Wen-Jun Tan,
- Chao Zheng,
- Jia-Cong Liu,
- Sheng-Lun Xie,
- Peng Zhang,
- Wen-Long Zhang,
- Yue Wang,
- Zheng-Hang Yu,
- Yang-Zhao Ren,
- Ping Wang,
- Yue Huang,
- Xiao-Bo Li,
- Xiao-Yun Zhao,
- Shi-Jie Zheng,
- Zhen Zhang,
- Shu-Xu Yi,
- Li-Ming Song,
- Shuang-Nan Zhang
Affiliations
- Yan-Qiu Zhang
- ORCiD
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]; University of Chinese Academy of Sciences , Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- Wang-Chen Xue
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]; University of Chinese Academy of Sciences , Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- Jin-Peng Zhang
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]; University of Chinese Academy of Sciences , Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- Ce Cai
- ORCiD
- College of Physics and Hebei Key Laboratory of Photophysics Research and Application, Hebei Normal University , Shijiazhuang, Hebei 050024, People’s Republic of China ; [email protected]; Shijiazhuang Key Laboratory of Astronomy and Space Science, Hebei Normal University , Shijiazhuang, Hebei 050024, People’s Republic of China
- Shao-Lin Xiong
- ORCiD
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]
- Cheng-Kui Li
- ORCiD
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]
- Yuan Liu
- National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People’s Republic of China
- Chen-Wei Wang
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]; University of Chinese Academy of Sciences , Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- Hao-Xuan Guo
- ORCiD
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]; Department of Nuclear Science and Technology, School of Energy and Power Engineering, Xi’an Jiaotong University , Xi’an, People’s Republic of China
- Shuo Xiao
- ORCiD
- Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University , Guiyang 550001, People’s Republic of China; School of Physics and Electronic Science, Guizhou Normal University , Guiyang 550001, People’s Republic of China
- Wen-Jun Tan
- ORCiD
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]; University of Chinese Academy of Sciences , Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- Chao Zheng
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]; University of Chinese Academy of Sciences , Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- Jia-Cong Liu
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]; University of Chinese Academy of Sciences , Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- Sheng-Lun Xie
- ORCiD
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]; Institute of Astrophysics, Central China Normal University , Wuhan 430079, People’s Republic of China
- Peng Zhang
- ORCiD
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]; College of Electronic and Information Engineering, Tongji University , Shanghai 201804, People’s Republic of China
- Wen-Long Zhang
- ORCiD
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]; School of Physics and Physical Engineering, Qufu Normal University , Qufu, Shandong 273165, People’s Republic of China
- Yue Wang
- ORCiD
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]; University of Chinese Academy of Sciences , Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- Zheng-Hang Yu
- ORCiD
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]; University of Chinese Academy of Sciences , Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- Yang-Zhao Ren
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]; School of Physical Science and Technology, Southwest Jiaotong University , Chengdu 611756, Sichuan, People’s Republic of China
- Ping Wang
- ORCiD
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]
- Yue Huang
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]
- Xiao-Bo Li
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]
- Xiao-Yun Zhao
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]
- Shi-Jie Zheng
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]
- Zhen Zhang
- ORCiD
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]
- Shu-Xu Yi
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]
- Li-Ming Song
- ORCiD
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]
- Shuang-Nan Zhang
- ORCiD
- State Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, People’s Republic of China ; [email protected]
- DOI
- https://doi.org/10.3847/2041-8213/ade0aa
- Journal volume & issue
-
Vol. 987,
no. 2
p. L38
Abstract
As a soft X-ray imager with an unprecedentedly large field of view, Einstein Probe (EP)/Wide-field X-ray Telescope (WXT) has detected many (fast) X-ray transients, whose nature is very intriguing. Whether there is a gamma-ray counterpart for the X-ray transient provides important implications for its origin. Some of them have been reported to be associated with gamma-ray bursts; however, a systematic study on the gamma-ray emission of these X-ray transients is lacking. In this work, we implemented a comprehensive targeted search for gamma-ray counterparts to 63 X-ray transients reported by EP/WXT during its first year of operation, using the dedicated multiple-instrument search pipeline, Energetic Transients Joint Analysis System for Multi-Instrument (ETJASMIN), with GECAM-B, GECAM-C, Fermi/GBM, and Insight-HXMT data. We find that 14 out of 63 (22%) EP/WXT X-ray transients have gamma-ray counterparts. For other transients, the ETJASMIN pipeline provided the upper limit of the gamma-ray emission, which is more stringent than that given by an individual instrument. Moreover, we investigated the properties of the X-ray transients and their gamma-ray counterparts and explored the relation between the X-ray transient and the gamma-ray counterpart.
Keywords
