The Perseus Flasher - Investigation using Ondrejov plates

Details The Perseus Flasher - Investigation using Ondrejov plates The Perseus Flasher - Investigation using Ondrejov plates

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989baicz..40..170b&link_type=abstract

Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 40, no. 3, June 1989, p. 170-174.

Mathematics

Logic

3

Charge Coupled Devices, Flash, Image Processing, Photographic Plates, All Sky Photography, Exosat Satellite, X Ray Sources

Scientific paper

The reality of the Perseus Flasher (PF), which was found as a source-emitting frequent and short optical flashes, is analyzed. The results based on investigating of the Ondrejov Observatory plate collection (no confirmation on time-correlated plates for four events; no object on plates representing a total of 1350 hours of exposure) indicate that the conclusions drawn by Katz et al. (1986) must be in error and strongly support the nonastrophysical origin of the object. On the other hand, the reported PF frequency is considerably higher than the estimated frequency of background flashes, and difficulties exist in the interpretation of the PF as a satellite glints phenomenon. Another plausible explanation is suggested; namely, that a large part (more than 50 percent) of the optical flashes reported as PF are physiological in origin.

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