supported by the National Natural Science Foundation of China (Grant Nos. 10573005 and 10633010);the National Basic Research Program of China (Grant No. 2007CB815405);Hunan Provincial Natural Science Foundation of China (Grant No. 10JJ3020);the Fund of the 11th Five-year Plan for Key Construction Academic Subject (Optics) of Hunan Province
The Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope (formerly GLAST) provides an increase in sensitivity and has detected rapid variability of gamma-ray sources.The variability time scales detected f...
was partially supported by the National Natural Science Foundation of China (Grant Nos. 10573005 and 10633010);the National Basic Research Program of China (Grant No. 2007CB815405);the Fund of the 11th Five-year Plan for Key Construction Academic Subject (Optics) of Hunan Province
The correlations between broad-line emission,polarization,and core-dominance parameters are investigated for a sample of 148 blazars(BL Lacertae objects-BLs and flat spectrum radio quasars-FSRQs). An anti-correlation ...
Supported by the National Natural Science Foundation of China.(Nos. 10573005 and 10633010) ;the 973 project (No. 2007CB815405)
The method used in our previous papers is adopted to estimate four basic parameters (the central black hole mass (M), the boosting factor (or Doppler factor) (6), the propagation angle (Φ) and the distance a...
Supported by the National Natural Science Foundation of China (Grant Nos. 10573005 and 10633010);the National Basic Research Program of China (Grant No. 2007CB815405)
Radio galaxies are divided into two groups according to their luminosities at 178 MHz, namely Fa- naroff-Riley type Is (FRIs) and Fanaroff-Riley type IIs (FRIIs) with FRIs showing lower radio luminosities than FRIIs. ...
supported by the National Natural Science Foundation of China (Grant Nos 10573005 and 10747001)
The spectral evolution of gamma-ray burst pulses assumed to arise from the emission of fireballs is explored. It is found that due to the curvature effect, the integrated flux is well related to peak energy by a power...
the NSFC(Grants 10573005 and 10633010);the 973 project(2007CB815405)
We have collected an up-to-date sample of 123 superluminal sources (84 quasars, 27 BL Lac objects and 12 galaxies) and calculated the apparent velocities (βapp) for 224 components in the sources with the A-CDM mo...
the National Natural Science Foundation of China(Grants 10573005 and 10125313)
We report the result of simultaneous multi-wavelength observations of the TeV blazar Mrk 421 during February - March 2003. We observed Mrk 421 using the Pachmarhi Array of Cerenkov Telescopes (PACT) of Tata Institut...
Project supported by the National Natural Science Foundation of China (Grant Nos 10573005 and 10633010);the State Key Program for Basic Research of China (Grant No 2003CB716300)
We have studied the Hawking radiation of the Kerr-Newman-Kasuya black hole via gauge and gravitational anomaly in the dragging coordinates. The fluxes of the electromagnetic current and the energy momentum tensor for ...
Project supported by the National Science Foundation for Distinguished Young Scholars of China (Grant No 10125313);the National Natural Science Foundation of China (Grant Nos 10573005 and 10633010)
In this paper, we use a method to dctermine some basic parameters for the γ-ray loud blazars. The parameters include the central black mass (M), the boosting factor (δ), the propagation angle (Ф), the distanc...
Project supported by the National Natural Science Foundation of China (Grant Nos 10573005 and 10633010).
Hawking radiation is viewed as a tunnelling process. In this way the emission rates of massless particles and massive particles tunnelling across the event horizon of general stationary axisymmetric black holes are ca...