The Rapid Decay of the Optical Emission from GRB 980326 and Its Possible Implications | Zendy

P. Groot | Zendy; T. J. Galama | Zendy; P. M. Vreeswijk | Zendy; R. A. M. J. Wijers | Zendy; E. Pian | Zendy; E. Palazzi | Zendy; J. van Paradijs | Zendy; C. Kouveliotou | Zendy; J. J. M. in ’t Zand | Zendy; J. Heise | Zendy; C. R. Robinson | Zendy; N. R. Tanvir | Zendy; C. Lidman | Zendy; C. G. Tinney | Zendy; M. Keane | Zendy; M. S. Briggs | Zendy; K. Hurley | Zendy; Jean-François Gonzalez | Zendy; Patrick B. Hall | Zendy; M. G. Smith | Zendy; R. Covarrubias | Zendy; P. G. Jonker | Zendy; J. Casares | Zendy; N. Masetti | Zendy; F. Frontera | Zendy; M. Feroci | Zendy; L. Piro | Zendy; E. Costa | Zendy; Rory Smith | Zendy; J. B. Jones | Zendy; David Windridge | Zendy; Joss BlandHawthorn | Zendy; Sylvain Veilleux | Zendy; Michael Garcia | Zendy; Warren R. Brown | Zendy; K. Z. Stanek | Zendy; A. J. Castro–Tirado | Zendy; J. Gorosabel | Zendy; J. Greiner | Zendy; Klaus Jäger | Zendy; A. Böhm | Zendy; K. J. Fricke | Zendy

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The Rapid Decay of the Optical Emission from GRB 980326 and Its Possible Implications

Author(s) -

P. Groot,

T. J. Galama,

P. M. Vreeswijk,

R. A. M. J. Wijers,

E. Pian,

E. Palazzi,

J. van Paradijs,

C. Kouveliotou,

J. J. M. in ’t Zand,

J. Heise,

C. R. Robinson,

N. R. Tanvir,

C. Lidman,

C. G. Tinney,

M. Keane,

M. S. Briggs,

K. Hurley,

Jean-François Gonzalez,

Patrick B. Hall,

M. G. Smith,

R. Covarrubias,

P. G. Jonker,

J. Casares,

N. Masetti,

F. Frontera,

M. Feroci,

L. Piro,

E. Costa,

Rory Smith,

J. B. Jones,

David Windridge,

Joss BlandHawthorn,

Sylvain Veilleux,

Michael Garcia,

Warren R. Brown,

K. Z. Stanek,

A. J. Castro–Tirado,

J. Gorosabel,

J. Greiner,

Klaus Jäger,

A. Böhm,

K. J. Fricke

Publication year - 1998

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/311509

Subject(s) - gamma ray burst , physics , astrophysics , exponent , exponential decay , nuclear physics , philosophy , linguistics

We report the discovery of the optical counterpart to GRB 980326. Its rapid optical decay can be characterized by a power law with exponent - 2.10+/-0.13 and a constant underlying source at R_{{c}}=25.5+/-0.5 . Its optical colors 2.1 days after the burst imply a spectral slope of - 0.66+/-0.70 . The gamma -ray spectrum as observed with BATSE shows that it is among the 4% softest bursts ever recorded. We argue that the rapid optical decay may be a reason for the nondetection of some low-energy afterglows of GRB

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