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8 papers · 2 filters
4.8 GHz Intra-Day Variability of FSRQ 0507+179
Lang Cui, Jun Liu, Xiang Liu
As one of targets of many flux monitoring campaigns, the FSRQ 0507+179 shows various flux variation properties at almost all observing wavelengths, from radio to -ray. With Urum…
An accreting low magnetic field magnetar for the ultraluminous X-ray source in M82
H. Tong
One ultraluminous X-ray source in M82 is identified as an accreting neutron star recently (named as NuSTAR J095551+6940.8). It has a super-Eddington luminosity and is spinning up.…
Frequency dependence of pulse width for 150 radio normal pulsars
J. L. Chen, H. G. Wang
The frequency dependence of pulse width is studied for 150 normal pulsars, mostly selected from the European Pulsar Network, for which the 10\% multifrequency pulse widths can be w…
Two types of glitches in a solid quark star model
Enping Zhou, Jiguang Lu, Hao Tong +1
Glitch (sudden spinup) is a common phenomenon in pulsar observations. However, the physical mechanism of glitch is still a matter of debate because it depends on the puzzle of puls…
To understand the X-ray spectrum of anomalous X-ray pulsars and soft gamma-ray repeaters
Yan-Jun Guo, Shi Dai, Zhao-Sheng Li +3
Hard X-rays above 10 keV are detected from several anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs), and different models have been proposed to explain the physic…
Cross-correlations between soft and hard light curves depending on luminosity in the transient neutron star XTE J1701-462
Ya-Nan Wang, Ya-Juan Lei, Guo-Qiang Ding +5
Using all the observations from Rossi X-ray Timing Explorer for accreting neutron star XTE J1701-462, we carry out a systematic study on the cross-correlation between its soft and…