Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...289l...1k&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 289, no. 1, p. L1-L4
Astronomy and Astrophysics
Astrophysics
10
Dust, Gamma Ray Bursts, Halos, Interstellar Extinction, Time Dependence, X Ray Density Measurement, X Ray Sources, Astronomical Models, Radiant Flux Density, Scattering, Time Lag
Scientific paper
We model the time evolution of the flux from the central part of a transient dust scattered X-ray halo at E = 1 keV following a X-ray burst possibly in general accompanying a gamma-ray burst as suggested in the literature. We consider the hypothetical case of a nearby galactic and a cosmological burster, both located in the direction toward the north ecliptic pole field, where detailed measurements of the X-ray background are recently reported in the literature. The latter permits us to constrain the necessary X-ray influence of a gamma-ray burst at the considered energy window in order to produce a detectable halo. We then investigate to which extent the time evolution of the transient halo would in practice permit to decide between a galactic and a cosmological origin of the burst under consideration. Based on various model calculations we demonstrate that the in detail not known size and spatial distribution of the scattering interstellar grains would act as a strong competitor against the potential sensitivity of the time evolution of the halo to the distance of the burster.
No associations
LandOfFree
A case study: The time evolution of dust scattered X-ray halos from gamma-ray bursters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A case study: The time evolution of dust scattered X-ray halos from gamma-ray bursters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A case study: The time evolution of dust scattered X-ray halos from gamma-ray bursters will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1786770