activity
20022023
most citedUltraluminous X-Ray Sources

546 citations · 3.7k across the 84 of their papers we have counts for

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Showing 2021Show all

8 papers · 1 filter

astro-ph.HE2021

A significant detection of X-ray Polarization in Sco X-1 with PolarLight and constraints on the corona geometry

Xiangyun Long, Hua Feng, Hong Li +23

We report the detection of X-ray polarization in the neutron star low mass X-ray binary Scorpius (Sco) X-1 with PolarLight. The result is energy dependent, with a non-detection in…

astro-ph.HE2021★ 3 cited

Constraining soft and hard X-ray irradiation in ultraluminous X-ray sources

Yanli Qiu, Hua Feng

Most ultraluminous X-ray sources (ULXs) are argued to be powered by supercritical accretion onto compact objects. One of the key questions regarding these objects is whether or not…

astro-ph.IM2021★ 12 cited

On-ground calibrations of the GRID-02 gamma-ray detector

Huaizhong Gao, Dongxin Yang, Jiaxing Wen +12

The Gamma-Ray Integrated Detectors (GRID) are a space project to monitor the transient gamma-ray sky in the multi-messenger astronomy era using multiple detectors on-board CubeSats…

astro-ph.HE2021★ 33 cited

GRB 210121A: A Typical Fireball Burst Detected by Two Small Missions

Xiangyu Ivy Wang, Xutao Zheng, Shuo Xiao +48

The Chinese CubeSat Mission, Gamma Ray Integrated Detectors (GRID), recently detected its first gamma-ray burst, GRB 210121A, which was jointly observed by the Gravitational wave h…

astro-ph.HE2021★ 22 cited

X-ray polarimetry of the Crab nebula with PolarLight: polarization recovery after the glitch and a secular position angle variation

Xiangyun Long, Hua Feng, Hong Li +24

We report follow-up observations of the Crab nebula with the PolarLight X-ray polarimeter, which revealed a possible variation in polarization associated with a pulsar glitch in 20…

astro-ph.HE2021★ 8 cited

Optical and Ultraviolet Monitoring of the Black Hole X-ray Binary MAXI J1820+070/ASASSN-18ey for 18 Months

Hanna Sai, Xiaofeng Wang, Jianfeng Wu +20

MAXI J1820+070 is a low-mass black hole X-ray binary system with high luminosity in both optical and X-ray bands during the outburst periods. We present extensive photometry in X-r…