We have studied the influence of the density of the annihilation region on the positronium continuum.A relation between ......

Among the RHESSI flare samples,we concentrated on a kind of flare that presents two successive peaks(that is,it presents......

The perspective of the detectability of Galactic dark matter subhaioes on the Fermi satellite is investigated in this wo......

We constrain the Cardassian expansion models from the latest observations,including the updated Gamma-ray bursts (GRBs),......

Swift GRB 100418A is a long burst at z =0.624 without detection of any associated supernova (SN).Its light curves in bot......