The red damping wing of Gunn-Peterson trough in the high redshift GRBs

Details The red damping wing of Gunn-Peterson trough in the high redshift GRBs The red damping wing of Gunn-Peterson trough in the high redshift GRBs

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009scchg..52.1428x&link_type=abstract

Science in China Series G: Physics, Mechanics and Astronomy, Volume 52, Issue 9, pp.1428-1433

Astronomy and Astrophysics

Astronomy

Cosmology Theory, Intergalactic Medium, Gamma Ray Burst

Scientific paper

We calculate the red damping wing of Gunn-Peterson trough taking the evolution of the neutral fraction into consideration and take a clear look at the ionized region around the ionizing sources. We get the result that the damping wing flux feature is mainly determined by the neutral hydrogen outside the ionized bubble and the cut off in the damping wing would be useful to get the size of the ionized bubble. We also fit the red damping wing of the recently discovered high redshift GRB080913 and find that the ionized bubble is too small to create apparent cut off in the spectrum of this burst.

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