Open AccessPredicting gamma‐ray burster redshifts from their prompt emission properties
Author(s) -
Koen Chris
Publication year - 2010
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2009.15737.x
Subject(s) - physics , redshift , astrophysics , gamma ray burst , light curve , flux (metallurgy) , time lag , lag , astronomy , galaxy , computer network , materials science , computer science , metallurgy
This paper presents a study of the relation between gamma‐ray burster redshift and several of its prompt emission properties (spectral lag, light curve variability, peak energy, rise time and the peak bolometric flux P bol ). Simple predictors of log(1 + z ) in terms of P bol and the other indicators are derived. The typical scatter in the relations is 0.13 dex. An illustrative application to observations of GRB 090423 ( z ∼ 8) is given.