4 papers
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…
Is the SNR HESS J1731-347 colliding with molecular clouds?
Yudong Cui, Ruizhi Yang, Xinbo He +2
The supernova remnant (SNR) HESS J1731-347 is a young SNR which displays a non-thermal X-ray and TeV shell structure. A molecular cloud at a distance of 3.2 kpc is spatially coinci…
Leaked GeV CRs from a broken shell: Explaining 9 years Fermi-LAT data of SNR W28
Yudong Cui, Paul K. H. Yeung, P. H. Thomas Tam +1
Supernova remnant (SNR)\,W28 is well known for its classic hadronic scenario, in which the TeV cosmic rays (CRs) released at the early stage of this mid-aged SNR are illuminating n…
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…