Computer Science – Databases
Scientific paper
Aug 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aipc..384..632h&link_type=abstract
Gamma-ray bursts: 3rd Huntsville symposium. AIP Conference Proceedings, Volume 384, pp. 632-636 (1996).
Computer Science
Databases
Gamma-Ray Sources, Gamma-Ray Bursts, Astronomical Catalogs, Atlases, Sky Surveys, Databases, Retrieval Systems, Archives, Etc.
Scientific paper
We have completed a search of a large number of catalogues of astronomical objects for the counterparts of 50 well-localized γ-ray bursts. The extra-galactic catalogues searched included those for normal galaxies, clusters of galaxies, quasars, active galaxies, and radio galaxies. The galactic catalogues searched included those for normal stars of spectral types A through M, variable stars, white dwarfs, flare stars, emission-line stars, proper motion stars, and X-ray sources. We found that none of these catalogued objects are likely counterparts for γ-ray bursts. For the extragalactic objects, we found that the bursts are distributed more isotropically than any of the catalogued sources. This suggests that if one of these classes of objects were the hosts of γ-ray bursts, then the bursts must come from a set of sources at much greater distances than those that have been catalogued. We have compared the statistical measurements of the isotropy and homogeneity of γ-ray bursts to that for the galactic objects and find that stars of spectral type ``G'' have the same apparent spatial distribution as γ-ray bursts. This surprising result indicates that the distribution of a galactic object can, in fact, mimic the spatial distribution of γ-ray bursts. We suggest, however, that this result is due to incompleteness in both the burst and G-star catalogues.
Harrison Thomas E.
McNamara Bernard J.
Webber William R.
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