2009A&A...508...63I


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.02CET13:08:39

2009A&A...508...63I - Astronomy and Astrophysics, volume 508, 63-67 (2009/12-2)

Extending the Hubble diagram by gamma ray bursts.

IZZO L., CAPOZZIELLO S., COVONE G. and CAPACCIOLI M.

Abstract (from CDS):

A new method to constrain the cosmological equation of state is proposed by using combined samples of gamma-ray bursts (GRBs) and supernovae (SNeIa). The Chevallier-Polarski-Linder parameterization is adopted for the equation of state in order to find a realistic approach to achieve the deceleration/acceleration transition phase of dark energy models.We find that GRBs, calibrated by SNeIa, could be good distance indicators capable of discriminating between cosmological models and ΛCDM model at high redshift.

Abstract Copyright:

Journal keyword(s): gamma rays: bursts - cosmological parameters - distance scale

Simbad objects: 3

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Number of rows : 3

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 GRB 050904 gB 00 54 50.794 +14 05 09.42           ~ 433 0
2 GRB 060210 gB 03 50 57.370 +27 01 34.40   20.27       ~ 226 0
3 GRB 050505 gB 09 27 03.300 +30 16 23.70     20.74     ~ 172 0

    Equat.    Gal    SGal    Ecl

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2021.03.02-13:08:39

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