Bagoly 2007 长暴的phometric redshift估计

主要内容:
短文。给出BATSE暴的phometric redshift估计，发现在红移分布上和有光学红移观测的暴的红移分布一致（这个一致应该来说不是一个很强的支持）。

精彩摘抄:


文章信息:
Redshifts of the Long Gamma-Ray Bursts

Authors: Z. Bagoly, I. Csabai, A. Meszaros, P. Meszaros, I. Horvath, L.G. Balazs, R. Vavrek

(Submitted on 6 Apr 2007)

Abstract: The low energy spectra of some gamma-ray bursts' show excess components beside the power-law dependence. The consequences of such a feature allows to estimate the gamma photometric redshift of the long gamma-ray bursts in the BATSE Catalog. There is good correlation between the measured optical and the estimated gamma photometric redshifts. The estimated redshift values for the long bright gamma-ray bursts are up to z=4, while for the the faint long bursts - which should be up to z=20 - the redshifts cannot be determined unambiguously with this method. The redshift distribution of all the gamma-ray bursts with known optical redshift agrees quite well with the BATSE based gamma photometric redshift distribution.

Comments:

published in Baltic Astronomy

Subjects:

Astrophysics (astro-ph)

Journal reference:

Baltic Astron. 13 (2004) 227

Cite as:

arXiv:0704.0864v1 [astro-ph]