Mathematics – Probability
Scientific paper
Nov 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...286l...1s&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 286, Nov. 1, 1984, p. L1-L4. Sponsorship: Centre Na
Mathematics
Probability
69
Gamma Ray Bursts, Optical Properties, Astronomical Models, Microdensitometers, Neutron Stars, Photographic Plates
Scientific paper
Two images on archival photographic plates which are most likely records of optical flashes from gamma-ray bursters (GRBs) were examined. One of these images appears on a 1901 plate in the field of the Nov. 5, 1979 GRB, while the other is in the field of the Jan. 13, 1979 GRB on a plate exposed in 1944. The 1901 optical transient image is circular in shape, while all normal star images are trailed by 8 in. No optical transients are found in a control region which is 34.3 times larger than the GRB error regions examined. Independent limits on the optical flash rate from the sky yield a probability of less than 0.0001 that any one of the optical transients is due to a background flash. A total exposure of 2.7 years was examined for GRB flashes at known GRB locations on the Harvard plates and a total of three GRB flashes were seen, that the average recurrence time scale for optical flashes is roughly one year. The optical fluence of these optical flashes was measured. For the three currently known GRB optical flashes, the ratio of gamma-ray fluence (from a modern burst) to the optical fluence (from a archival burst) were measured to be 800, 900, and 900.
Barat Claude
Bradt Hale V.
Cline Thomas L.
Desai U.
Estulin I. V.
No associations
LandOfFree
Two probable optical flashes from gamma-ray bursters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Two probable optical flashes from gamma-ray bursters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two probable optical flashes from gamma-ray bursters will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1751917