Early detection of the optical counterpart to GRB 980329

Authors
Gorosabel, J Castro-Tirado, A Pedrosa, A Zapatero-Osorio, MR Fernandes, AJL Feroci, M Costa, E Frontera, F
Citation
J. Gorosabel et al., Early detection of the optical counterpart to GRB 980329, ASTRON ASTR, 347(2), 1999, pp. L31-L34
Citations number
21
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY AND ASTROPHYSICS
ISSN journal
00046361 → ACNP
Volume
347
Issue
2
Year of publication
1999
Pages
L31 - L34
Database
ISI
SICI code
0004-6361(199907)347:2<L31:EDOTOC>2.0.ZU;2-1
Abstract
We report optical observations of the GRB 980329 error box which represent the second earliest detection of the GRB 980329 optical transient. We deter mine R = 23.7 +/- 0.5 mag on 29.89 March, which is consistent with R = 23.6 +/- 0.2 mag as reported by Palazzi et al. (1998) on 29.99 March. Based on extrapolations of the light curve we claim that. the R-band magnitude of th e GRB 980329 host galaxy should lie in the range 26.8 mag < R < 29 mag. We also discuss the similarities with GRB 970111.