3 papers
astro-ph.HE2025
Emission and Absorption Lines in Photospheric Radius Expansion Bursts of 4U 182030
Wenhui Yu, Zhaosheng Li, Yuanyue Pan +4
We analyze the emission and absorption lines during photospheric radius expansion (PRE) X-ray bursts from the ultracompact binary 4U 1820--30, observed with the Neutron Star Interi…
astro-ph.HE2025
Spectral properties of the neutron star low-mass X-ray binary 4U 1636-53, XTE J1739-285 and MAXI J1816-195
Zhenyan Fei, Ming Lyu, Guobao Zhang +2
We investigated simultaneous NICER plus NuSTAR observations of three neutron star low-mass X-ray binary 4U 1636-53, XTE J1739-285 and MAXI J1816-195 using the latest reflection mod…
astro-ph.HE2024
NICER views moderate, strong, and extreme photospheric expansion bursts from the ultracompact X-ray binary 4U 182030
Wenhui Yu, Zhaosheng Li, Yongqi Lu +5
Type I X-ray bursts in the ultracompact X-ray binary 4U 182030 are powered by the unstable thermonuclear burning of hydrogen-deficient material. We report the detection of 15 ty…