108 citations · 1.4k across the 59 of their papers we have counts for
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Science objectives of the Einstein Probe mission
Weimin Yuan, Lixin Dai, Hua Feng +93
The Einstein Probe (EP) is an interdisciplinary mission of time-domain and X-ray astronomy. Equipped with a wide-field lobster-eye X-ray focusing imager, EP will discover cosmic X-…
Evidence of the gamma-ray counterpart from nova FM Cir with Fermi-LAT
H. H. Wang, H. D. Yan, L. C. -C. Lin +2
We report the analysis results of X-ray and gamma-ray data of the nova FM Cir taken by Swift and Fermi-LAT. The gamma-ray emission from FM Cir can be identified with a significance…
Influences of dynamical disruptions on the evolution of pulsars in globular clusters
Kwangmin Oh, C. Y. Hui, Jongsuk Hong +5
By comparing the physical properties of pulsars hosted by core-collapsed (CCed) and non-core-collapsed (Non-CCed) globular clusters (GCs), we find that pulsars in CCed GCs rotate s…
An Investigation of the state changes of PSR J2021+4026 and the Vela pulsar
H. -H. Wang, J. Takata, L. C. -C. Lin +1
We investigate the high energy emission activities of two bright gamma-ray pulsars, PSR~J2021+4026 and Vela. For PSR~J2021+4026, the state changes in the gamma-ray flux and spin-do…
A comparison of millisecond pulsar populations between globular clusters and the Galactic field
Jongsu Lee, C. Y. Hui, J. Takata +4
We have performed a systematic study of the rotational, orbital and X-ray properties of millisecond pulsars (MSPs) in globular clusters (GCs) and compared their nature with those o…
Searching for an additional high-energy component in Fermi-LAT GRB afterglows
Xin-Bo He, Pak-Hin Thomas Tam, Guang-Bo Long +3
The VHE component from at least two GRBs, i.e., GRB180720B and GRB190114C, has been detected in the afterglow phase. We systematically analyzed 199 GRBs detected by Fermi-LAT durin…
Periodicity search for Pulsar Binaries with TESS
Partha Sarathi Pal, P. H. T. Tam, Weitang Liang +4
Pulsar binaries, in particular redback systems, provide good sources to study the pulsar wind flow and its interaction with the companion stars. {\it Fermi}-LAT have proposed proba…
Repeated state change of variable gamma-ray pulsar, PSR J2021+4026
J. Takata, H. H. Wang, L. C. C. Lin +6
PSR J2021+4026 is a radio-quiet gamma-ray pulsar and the first pulsar that shows state change of the gamma-ray emission and spin-down rate. The state change of PSR J2021+4026 was f…
A multi-wavelength study of the gamma-ray binary candidate HESS J1832-093
Pak-Hin Thomas Tam, K. K. Lee, Yudong Cui +6
We investigate the nature of the unidentified very-high-energy (VHE) gamma-ray object, HESS J1832-093, in a multi-wavelength context. Based on X-ray variability and spectral index…
Searching for GeV gamma-ray emission from the bulge of M31
Li Feng, Zhiyuan Li, Meng Su +2
The three major large-scale, diffuse -ray structures of the Milky Way are the Galactic disk, a bulge-like GeV excess towards the Galactic center, and the Fermi bubble. Whether s…
On the orbital properties of millisecond pulsar binaries
C. Y. Hui, Kinwah Wu, Qin Han +2
We report a detailed analysis of the orbital properties of binary millisecond pulsar (MSP) with a white dwarf (WD) companion. Positive correlations between the orbital period $P_{\…
X-ray Census of Millisecond Pulsars in the Galactic field
Jongsu Lee, C. Y. Hui, J. Takata +3
We have conducted a systematic survey for the X-ray properties of millisecond pulsars (MSPs). Currently, there are 47 MSPs with confirmed X-ray detections. We have also placed the…
Broadband High-Energy Emissions of the Redback Millisecond Pulsar PSR J2129-0429
A. K. H. Kong, J. Takata, C. Y. Hui +3
We present the first results from a joint XMM-Newton and NuSTAR observation of the gamma-ray emitting millisecond pulsar compact binary PSR J2129-0429. X-ray emission up to about 4…
Investigation of the High-Energy Emission from the Magnetar-like Pulsar PSR J1119-6127 after the 2016 Outburst
Lupin Chun-Che Lin, Hui-Hui Wang, Kwan-Lok Li +7
PSR J1119-6127 is a radio pulsar that behaved magnetar like bursts, and we performed a comprehensive investigation of this pulsar using the archival high-energy observations obtain…
The hour-timescale GeV flares of PSR B1259-63 in 2017
Pak-Hin Thomas Tam, Xinbo He, Partha Sarathi Pal +1
GeV flares from PSR B1259-63/LS 2883 were seen starting around 30 days after the two periastron passages in 2010 and 2014. The flares are clearly delayed compared to the occurrence…
The X-ray modulation of PSR J2032+4127/MT91 213 during the Periastron Passage in 2017
K. L. Li, J. Takata, C. W. Ng +4
We present the Neil Gehrels Swift Observatory (Swift), Fermi Large Area Telescope (Fermi-LAT), and Karl G. Jansky Very Large Array (VLA) observations of the gamma-ray binary PSR J2…
A non-thermal pulsed X-ray emission of AR~Scorpii
J. Takata, C. -P. Hu, L. C. C. Lin +5
We report the analysis result of UV/X-ray emission from AR~Scorpii, which is an intermediate polar (IP) composed of a magnetic white dwarf and a M-type star, with the XMM-Newton da…
Rapid X-ray variations of the Geminga pulsar wind nebula
C. Y. Hui, Jongsu Lee, A. K. H. Kong +4
A recent study by Posselt et al. (2017) reported the deepest X-ray investigation of the Geminga pulsar wind nebula (PWN) by using \emph{Chandra X-ray Observatory}. In comparison wi…
Searching for High Energy, Horizon-scale Emissions from Galactic Black Hole Transients during Quiescence
Lupin Chun-Che Lin, Hung-Yi Pu, Kouichi Hirotani +5
We search for the gamma-ray counterparts of stellar-mass black holes using long-term Fermi archive to investigate the electrostatic acceleration of electrons and positrons in the v…
Mode change of a gamma-ray pulsar, PSR J2021+4026
J. Zhao, C. W. Ng, L. C. C. Lin +8
A glitch of a pulsar is known as a sudden increase in the spin frequency and spin-down rate (frequency time derivative), and it can be caused by a sudden rel\ ease of the stress bu…
Lepton acceleration in the vicinity of the event horizon: Very-high-energy emissions from super-massive black holes
Kouichi Hirotani, Hung-Yi Pu, Lupin Chun-Che Lin +5
Around a rapidly rotating black hole (BH), when the plasma accretion rate is much less than the Eddington rate, the radiatively inefficient accretion flow (RIAF) cannot supply enou…
Swift, XMM-Newton, and NuSTAR observations of PSR J2032+4127/MT91 213
K. L. Li, A. K. H. Kong, P. H. T. Tam +3
We report our recent Swift, NuSTAR, and XMM-Newton X-ray and Lijiang optical observations on PSR J2032+4127/MT91 213, the gamma-ray binary candidate with a period of 45-50 years. T…
Search for GeV counterparts to fast radio bursts with Fermi
Shao-Qiang Xi, Pak-Hin Thomas Tam, Fang-Kun Peng +1
The non-repeating fast radio bursts (FRBs) could arise from catastrophic stellar explosions or magnetar giant flares, so relativistic blast waves might be produced in these events.…
A NuSTAR Observation of the Gamma-ray Emitting Millisecond Pulsar PSR J1723-2837
A. K. H. Kong, C. Y. Hui, J. Takata +2
We report on the first NuSTAR observation of the gamma-ray emitting millisecond pulsar binary PSR J1723-2837. X-ray radiation up to 79 keV is clearly detected and the simultaneous…