45 citations
3 papers
astro-ph.SR2009★ 45 cited
The causality between the rapid rotation of a sunspot and an X3.4 flare
Xiaoli Yan
Using multi-wavelength data of Hinode, a rapid rotation of a sunspot in active region NOAA 10930 is studied in detail. We found the extra-ordinary counterclockwise rotation of the…
astro-ph2008★ 10 cited
Spectral hardness evolution characteristics of tracking Gamma-ray Burst pulses
Z. Y. Peng, L. Ma, R. J. Lu +3
Employing a sample presented by Kaneko et al. (2006) and Kocevski et al. (2003), we select 42 individual tracking pulses (here we defined tracking as the cases in which the hardnes…
astro-ph2008★ 40 cited
Absorption of 10 Gev--1 Tev Gamma Rays by Radiation from Broad-Line Region in 3C 279
H. T. Liu, J. M. Bai, L. Ma
In this paper, we study the photon-photon pair production optical depth for 10 GeV--1 TeV gamma rays from 3C 279 due to the diffuse radiation of broad-line region (BLR). Assuming a…