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Author
dc.contributor.author
Bagoly, Z 
Author
dc.contributor.author
Csabai, I 
Author
dc.contributor.author
Meszaros, A 
Author
dc.contributor.author
Meszaros, P 
Author
dc.contributor.author
Horvath, I 
Author
dc.contributor.author
Balazs, LG 
Author
dc.contributor.author
Vavrek, R 
Availability Date
dc.date.accessioned
2020-08-08T20:14:10Z
Availability Date
dc.date.available
2020-08-08T20:14:10Z
Release
dc.date.issued
2003
uri
dc.identifier.uri
http://hdl.handle.net/10831/49213
Abstract
dc.description.abstract
It is known that the soft tail of the gamma-ray bursts' spectra show excesses from the exact power-law dependence. In this article we show that this departure can be detected in the peak flux ratios of different BATSE DISCSC energy channels. This effect allows to estimate the redshift of the bright long gamma-ray bursts in the BATSE Catalog. A verification of these redshifts is obtained for the 8 GRB which have both BATSE DISCSC data and measured optical spectroscopic redshifts. There is good correlation between the measured and estimated redshifts, and the average error is Delta z ~ 0.33. The method is similar to the photometric redshift estimation of galaxies in the optical range, hence it can be called as ``gamma photometric redshift estimation''. The estimated redshifts for the long bright gamma-ray bursts are up to z =~ 4. For the the faint long bursts - which should be up to z =~ 20 - the redshifts cannot be determined unambiguously with this method.
Language
dc.language
Angol
Title
dc.title
Gamma photometric redshifts for long gamma-ray bursts
Type
dc.type
folyóiratcikk
Date Change
dc.date.updated
2020-06-05T11:41:41Z
Scope
dc.format.page
919-925
Doi ID
dc.identifier.doi
10.1051/0004-6361:20021724
Wos ID
dc.identifier.wos
000180637800016
ID Scopus
dc.identifier.scopus
0037319349
MTMT ID
dc.identifier.mtmt
1064361
Issue Number
dc.identifier.issue
3
abbreviated journal
dc.identifier.jabbrev
ASTRON ASTROPHYS
Journal
dc.identifier.jtitle
ASTRONOMY & ASTROPHYSICS
Volume Number
dc.identifier.volume
398
Release Date
dc.description.issuedate
2003
department of Author
dc.contributor.institution
Konkoly Thege Miklós Csillagászati Intézet
department of Author
dc.contributor.institution
Csillagászati Tanszék
department of Author
dc.contributor.institution
Zrínyi Miklós Nemzetvédelmi Egyetem
department of Author
dc.contributor.institution
MTA Határon Túli Magyarok Titkársága
department of Author
dc.contributor.institution
Katonai Logisztikai Intézet
department of Author
dc.contributor.institution
Komplex Rendszerek Fizikája Tanszék
Author institution
dc.contributor.department
Komplex Rendszerek Fizikája Tanszék
Author institution
dc.contributor.department
Komplex Rendszerek Fizikája Tanszék
Author institution
dc.contributor.department
Zrínyi Miklós Nemzetvédelmi Egyetem
Author institution
dc.contributor.department
Konkoly Thege Miklós Csillagászati Intézet
Author institution
dc.contributor.department
Konkoly Thege Miklós Csillagászati Intézet


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Gamma photometric redshifts for long gamma-ray bursts
 

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