A new upper limit on optical bursts from primordial black hole explosions

Details A new upper limit on optical bursts from primordial black hole explosions A new upper limit on optical bursts from primordial black hole explosions

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980ap%26ss..73..513b&link_type=abstract

Astrophysics and Space Science, vol. 73, no. 2, Dec. 1980, p. 513-516.

Astronomy and Astrophysics

Astronomy

8

Black Holes (Astronomy), Electromagnetic Pulses, Light (Visible Radiation), Stellar Radiation, Cerenkov Radiation, Cosmic Ray Showers, Cosmology, Explosions

Scientific paper

Two wide-angle photomultiplier systems were simultaneously operated over a baseline of nearly 30 km in a search for cosmic optical bursts of fractional microsecond time-scale. In 74 hours of overlapping observation, one event was recorded coincident to 1 ms as against the corresponding accidental coincidence value of 0.14 from Cerenkov light pulses from unrelated cosmic ray showers. The possible cosmic origin of this event, including that from primordial black-hole explosions, is discussed and the corresponding upper limits derived.

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