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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



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ID: 225885.0, MPI für Astronomie / Publikationen_mpia
Redshifts of the long Gamma-ray bursts
Authors:Bagoly, Z.; Csabai, I.; Mészáros, A.; Mészáros, P.; Horváth, I.; Balázs, L. G.; Vavrek, R.
Date of Publication (YYYY-MM-DD):2004
Title of Journal:Baltic Astronomy
Volume:13
Start Page:227
End Page:230
Review Status:not specified
Audience:Not Specified
Abstract / Description:The low energy spectra of some gamma-ray
bursts show excess components beside the
power-law dependence. The consequences of such a
feature allows us to estimate the gamma
photometric redshift of long gamma-ray bursts in
the BATSE Catalog. There is a good correlation
between the measured optical and the estimated
gamma photometric redshifts. The estimated
redshift values for long bright gamma-ray bursts
are up to z=4, while for long faint bursts the
redshifts cannot be determined unambiguously by
this method (they should be up to z=20). The
redshift distribution of all the gamma-ray bursts
with known optical redshifts agrees quite well
with the BATSE-based gamma photometric redshift
distribution.
Free Keywords:cosmology; gamma-rays: bursts
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
External Affiliations:E‚‚ouml;tv‚‚ouml;s University,
P‚‚aacute;zm‚‚aacute;ny P. s. 1/A, H-1117,
Budapest, Hungary), AB(Department of Physics for
Complex Systems, E‚‚ouml;tv‚‚ouml;s University,
P‚‚aacute;zm‚‚aacute;ny P. s. 1/A, H-1117,
Budapest, Hungary), AC(Astronomical Institute of
Charles University, V
Hole‚‚scaron;ovi‚‚ccaron;k‚‚aacute;ch 2, CZ-180
00, Prague 8, Czech Republic), AD(Department of
Astronomy and Astrophysics, Pennsylvania State
University, 525 Davey Lab., University Park, PA
16802, U.S.A.), AE(Department of Physics, Bolyai
Military University, POB 12, H-1456, Budapest,
Hungary), AF(Konkoly Observatory, POB 67, H-1505,
Budapest, Hungary), AG(Max-Planck-Institut f‚‚uuml;r
Astronomie, 17 K‚‚ouml;nigstuhl, D-69117,
Heidelberg, Germany)
Identifiers:URL:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bi... [ID No:1]
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