re gamma ray bursters where are they on apr gmt jfc athena mit edu john f carr said jfc if gamma ray bursters are extragalactic would absorption from the jfc galaxy be expected how transparent is the galactic core to gamma jfc rays and later jim batka jbatka desire wright edu said jb so if the r law is incorrect assume jb some unknown material dark matter inhibits gamma ray propagation jb could it be possible that we are actually seeing much less energetic jb events happening much closer to us the even distribution could jb be caused by the characteristic propagation distance of gamma rays jb being shorter then the thickness of the disk of the galaxy well maybe not zero but very little at the typical energies for gamma rays the galaxy is effectively transparent hans bloemen had a review article in ann rev astr astrophys a few years back in which he discusses this in more depth e mail lazio astrosun tn cornell edu t joseph lazio phone icbm deg n deg w cornell knows i exist stop rape
