Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe..53b&link_type=abstract
Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:
Astronomy and Astrophysics
Astrophysics
Scientific paper
A possibility is discussed of detection and study of flares in all ranges of the electromagnetic spectrum which are related to the gamma-burst synchroniously with the gamma-burst itself. This possibility can be provided by means of gravitational lensing of cosmological gamma-bursts in an intermediate galaxy. It is noted that the photometric history of events related to gamma-bursts can be studied if the event caused by gravitational lensing is recurrent. It is shown by the example of the optical transient of the gamma-burst GRB 970508 with z = 0.833 that under simple assumptions, at least two-fold recurrence of the flash (but for the burst itself) is possible. The amplitude of these recurrences is as small as 2-10 times, while the time delay is tens of seconds - weeks. The lower limit of the effect detection probability is about 1%.
Bartolini Corrado
Beskin Gregory
Golden Aaron
Guarnieri Adriano
Masetti Nicola
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