108 citations · 141 across the 3 of their papers we have counts for
11 papers
Chandra detection of a new diffuse X-ray component from the globular cluster 47 Tucanae
E. M. H. Wu, C. Y. Hui, A. K. H. Kong +3
In re-analyzing the archival Chandra data of the globular cluster 47 Tucanae, we have detected a new diffuse X-ray emission feature within the half-mass radius of the cluster. The…
Exploring the X-ray and gamma-ray properties of the redback millisecond pulsar PSR J1723-2837
C. Y. Hui, P. H. T. Tam, J. Takata +5
We have investigated the X-ray and -ray properties of the redback millisecond pulsar PSR J1723-2837 with XMM-Newton, Chandra and Fermi. We have discovered the X-ray orbital modu…
Multi-wavelength emissions from the millisecond pulsar binary PSR J1023+0038 during an accretion active state
J. Takata, K. L. Li, G. C. K. Leung +9
Recent observations strongly suggest that the millisecond pulsar binary PSR J1023+0038 has developed an accretion disk since 2013 June. We present a multi-wavelength analysis of PS…
Model on pulsed GeV radiation from magnetars
J. Takata, Y. Wang, E. M. H. Wu +1
We discuss a possible scenario for radiation mechanism of pulsed GeV gamma-rays from magnetars. The magnetars have shown frequent X-ray bursts, which would be triggered by crust fr…
Search for pulsed gamma-ray emission from globular cluster M28
J. H. K. Wu, C. Y. Hui, E. M. H. Wu +5
Using the data from the Large Area Telescope on board the Fermi Gamma-ray Space Telescope, we have searched for the gamma-ray pulsations from the direction of globular cluster M28…
Orbital Phase Dependent Gamma-ray emissions from the Black Widow Pulsar
E. M. H. Wu, J. Takata, K. S. Cheng +5
We report on evidence for orbital phase-dependence of the gamma-ray emission from PSR B1957+20 black widow system by using the data of the Fermi Large Area Telescope. We divide an…