Posted by Astroman on September 13, 192002 at 10:54:52:
In Reply to: grbs posted by pete s on September 08, 192002 at 15:42:04:
Hi Pete, and welcome. I had not heard this theory before, but it's improbable for a couple reasons. First, neutrinos interact so weakly, if at all, with ordinary matter that there would be insufficient "echos" to generate gamma rays. In fact one current method of detection of neutrinos involves the detection of barely visible Cerenkov radiation, (barely measurable light flashes) caused by neutrinos interacting with electrons. Neutrinos interact almost not at all, even with the matter present inside the star as it explodes. Second, the "closest" GRB so far was at "only" about 1 billion light years away. The distances are indeed cosmological.
You might like to post to the newer message board, located at: http://killdevilhill.com/astronomychat/wwwboard.html
I own and operate a small observatory in SW AZ where I educate the public and do variable star research, including GRB Optical Transient searches. xsdodder@hotmail.com http://www.stargazing.net/Astroman