A Gamma-Ray Burst Database: GRBlog http://grblog.org/grblog.php 凡例 Vela Pulsar in Gamma Rays Credit: NASA/DOE/Fermi LAT Collaboration http://svs.gsfc.nasa.gov/vis/a010000/a010400/a010426/index.html NASA - NASA's Fermi Telescope Probes Do…