X-ray halos as tracers of the distance of the gamma-ray bursters

Details X-ray halos as tracers of the distance of the gamma-ray bursters X-ray halos as tracers of the distance of the gamma-ray bursters

Mar 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...423l..23k&link_type=abstract

Astrophysical Journal, Part 2 - Letters, vol. 423, no. 1, p. L23-L26

Statistics

Computation

10

Cosmology, Distance, Dust, Extinction, Gamma Ray Astronomy, Gamma Ray Bursts, Halos, Luminous Intensity, Time Lag, X Rays, Computation, Estimates, Time Dependence

Scientific paper

Paczynski has recently noted that gamma-ray bursts (GRBs) should be surrounded by transient X-ray halos due to the scattering of the X-rays at the interstellar dust grains, if they are of extragalactic origin. Based on an estimate of the peak gamma ray to peak X-ray flux of the GRBs by Yoshida et al., we find that the brightest bursts with fluxes Fgamma approximately greater than 10-4 ergs/sec/sq cm could produce transient halos at E approximately equals 1 keV with intensities well above the X-ray background intensity.

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