Redshifts of the long gamma-ray bursts

Z. Bagoly, I. Csabai, A. Mészáros, P. Mészáros, I. Horváth, L. Balázs, R. Vavrek

Research output: Contribution to journalArticle

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 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 2=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.

Original languageEnglish
Pages (from-to)227-230
Number of pages4
JournalBaltic Astronomy
Volume13
Issue number2
Publication statusPublished - 2004

Fingerprint

gamma ray bursts
power law
catalogs
energy
bursts
energy spectra
distribution
estimates
method

Keywords

  • Cosmology
  • Gamma-rays: bursts

ASJC Scopus subject areas

  • Astronomy and Astrophysics

Cite this

Bagoly, Z., Csabai, I., Mészáros, A., Mészáros, P., Horváth, I., Balázs, L., & Vavrek, R. (2004). Redshifts of the long gamma-ray bursts. Baltic Astronomy, 13(2), 227-230.

Redshifts of the long gamma-ray bursts. / Bagoly, Z.; Csabai, I.; Mészáros, A.; Mészáros, P.; Horváth, I.; Balázs, L.; Vavrek, R.

In: Baltic Astronomy, Vol. 13, No. 2, 2004, p. 227-230.

Research output: Contribution to journalArticle

Bagoly, Z, Csabai, I, Mészáros, A, Mészáros, P, Horváth, I, Balázs, L & Vavrek, R 2004, 'Redshifts of the long gamma-ray bursts', Baltic Astronomy, vol. 13, no. 2, pp. 227-230.
Bagoly, Z. ; Csabai, I. ; Mészáros, A. ; Mészáros, P. ; Horváth, I. ; Balázs, L. ; Vavrek, R. / Redshifts of the long gamma-ray bursts. In: Baltic Astronomy. 2004 ; Vol. 13, No. 2. pp. 227-230.
@article{07e51c578fde452fb5e2d2ad7a81afaa,
title = "Redshifts of the long gamma-ray bursts",
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 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 2=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.",
keywords = "Cosmology, Gamma-rays: bursts",
author = "Z. Bagoly and I. Csabai and A. M{\'e}sz{\'a}ros and P. M{\'e}sz{\'a}ros and I. Horv{\'a}th and L. Bal{\'a}zs and R. Vavrek",
year = "2004",
language = "English",
volume = "13",
pages = "227--230",
journal = "Open Astronomy",
issn = "1392-0049",
publisher = "De Gruyter Open Ltd.",
number = "2",

}

TY - JOUR

T1 - Redshifts of the long gamma-ray bursts

AU - Bagoly, Z.

AU - Csabai, I.

AU - Mészáros, A.

AU - Mészáros, P.

AU - Horváth, I.

AU - Balázs, L.

AU - Vavrek, R.

PY - 2004

Y1 - 2004

N2 - 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 2=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.

AB - 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 2=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.

KW - Cosmology

KW - Gamma-rays: bursts

UR - http://www.scopus.com/inward/record.url?scp=24944570563&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=24944570563&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:24944570563

VL - 13

SP - 227

EP - 230

JO - Open Astronomy

JF - Open Astronomy

SN - 1392-0049

IS - 2

ER -