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Type I X-ray bursts' spectra and fuel composition from the atoll and transient source 4U 173022
Yongqi Lu, Zhaosheng Li, Yuanyue Pan +8
NICER observed two outbursts from the neutron star low-mass X-ray binary 4U~173022 in 2021 and 2022, which showed a similar spectral evolution in the hardness-intensity diagram.…
CATCH: Chasing All Transients Constellation Hunters Space Mission
Panping Li, Qian-Qing Yin, Zhengwei Li +34
In time-domain astronomy, a substantial number of transients will be discovered by multi-wavelength and multi-messenger observatories, posing a great challenge for follow-up capabi…
Return of 4U~1730--22 after 49 years silence: the spectral properties of the 2021/2022 outbursts observed by NICER and Insight-HXMT and the soft-to-hard state transition caused by the propeller effect
Yu-Peng Chen, Shu Zhang, Shuang-Nan Zhang +10
After in quiescence for 49 years, 4U~1730--22 became active and had two outbursts in 2021 \& 2022, the onset and tail of the outbursts were observed by NICER, which give us a peerl…
The 100-m X-ray Test Facility at IHEP
Yusa Wang, Zijian Zhao, Dongjie Hou +14
The 100-m X-ray Test Facility of the Institute of High Energy Physics (IHEP) was initially proposed in 2012 for the test and calibration of the X-ray detectors of the Hard X-ray Mo…
Return of 4U~1730--22 after 49 years silence: the peculiar burst properties of the 2021/2022 outbursts observed by Insight-HXMT
Yu-Peng Chen, Shu Zhang, Long Ji +10
After in quiescence for 49 years, 4U~1730--22 became active and had two outbursts in 2021 \& 2022; ten thermonuclear X-ray bursts were detected with Insight-HXMT. Among them, the f…
Insight-HXMT observation on 4U~1608--52: evidence of interplay between thermonuclear burst and accretion environments
Yu-Peng Chen, Shu Zhang, Long Ji +7
A type-I burst could influence the accretion process through radiation pressure and Comptonization both for the accretion disk and the corona/boundary layer of an X-ray binary, and…