63 citations · 124 across the 2 of their papers we have counts for
5 papers · 1 filter
The superflares of soft Gamma-ray repeatres: giant quakes in solid quark stars?
R. X. Xu, D. J. Tao, Y. Yang
Three times of supergiant flares from soft -ray repeatres are observed, with typical released energy of erg. A conventional model (i.e., the magnetar model) fo…
1E 1207.4-5209: a low-mass bare strange star?
R. X. Xu
Both rotation- and accretion-powered low-mass bare strange stars are studied, the astrophysical appearances of which are especially focused. It is suggested that low-mass bare stra…
The braking indices in pulsar emission models
F. Wu, R. X. Xu, Janusz Gil
Using the method proposed in a previous paper, we calculate pulsar braking indices in the models with torque contributions from both inner and outer accelerating regions, assuming…
Can the age discrepancies of neutron stars be circumvented by an accretion-assisted torque?
Y. Shi, R. X. Xu
It is found that 1E 1207.4-5209 could be a low-mass bare strange star if its small radius or low altitude cyclotron formation can be identified. The age problems of five sources co…
Solid Quark Stars?
R. X. Xu
It is conjectured that cold quark matter with much high baryon density could be in a solid state, and strange stars with low temperatures should thus be solid stars. The speculatio…