J
J.-F. Gonzalez
Researcher at European Southern Observatory
Publications - 5
Citations - 4228
J.-F. Gonzalez is an academic researcher from European Southern Observatory. The author has contributed to research in topics: Hypernova & Gamma-ray burst. The author has an hindex of 4, co-authored 5 publications receiving 3976 citations.
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Journal ArticleDOI
An Unusual Supernova in the Error Box of the Gamma-Ray Burst of 25 April 1998
Titus Galama,P. M. Vreeswijk,J. van Paradijs,J. van Paradijs,Chryssa Kouveliotou,Chryssa Kouveliotou,T. Augusteijn,H. Böhnhardt,J. Brewer,V. Doublier,J.-F. Gonzalez,Bruno Leibundgut,C. Lidman,Olivier Hainaut,Ferdinando Patat,John Heise,J. J. M. in 't Zand,Kevin Hurley,Paul J. Groot,Richard G. Strom,Paolo A. Mazzali,Koichi Iwamoto,Ken'ichi Nomoto,Hideyuki Umeda,Takahisa Nakamura,T. R. Young,Tsutomu Suzuki,Toshikazu Shigeyama,Thomas M. Koshut,Marc Kippen,Marc Kippen,C. R. Robinson,C. R. Robinson,P. de Wildt,Ralph A. M. J. Wijers,Nial R. Tanvir,Jochen Greiner,Elena Pian,E. Palazzi,F. Frontera,N. Masetti,Luciano Nicastro,M. Feroci,Enrico Costa,L. Piro,Bruce A. Peterson,C. G. Tinney,B. J. Boyle,Russell D. Cannon,R. A. Stathakis,Elaine M. Sadler,Michael C. Begam,Philip A. Ianna +52 more
TL;DR: In this paper, the authors reported the discovery of transient optical emission in the error box of the gamma-ray burst GRB980425, the light curve of which was very different from that of previous optical afterglows associated with Gamma-ray bursts.
Journal ArticleDOI
Discovery of the peculiar supernova 1998bw in the error box of GRB980425
Titus Galama,P. M. Vreeswijk,J. van Paradijs,Chryssa Kouveliotou,T. Augusteijn,Olivier Hainaut,Ferdinando Patat,H. Boehnhardt,J. Brewer,V. Doublier,J.-F. Gonzalez,C. Lidman,Bruno Leibundgut,John Heise,J. J. M. in 't Zand,Paul J. Groot,Richard G. Strom,Paolo A. Mazzali,Koichi Iwamoto,K. Nomoto,H. Umeda,T. Nakamura,Thomas M. Koshut,M. Kippen,Colin Robinson,P. de Wildt,Ralph A. M. J. Wijers,Nial R. Tanvir,Jochen Greiner,Elena Pian,E. Palazzi,F. Frontera,N. Masetti,Luciano Nicastro,E. Malozzi,M. Feroci,Enrico Costa,L. Piro,Bruce A. Peterson,C. G. Tinney,B. J. Boyle,Russell D. Cannon,R. A. Stathakis,Michael C. Begam,Philip A. Ianna +44 more
TL;DR: In this article, the authors reported the discovery of an optical transient, in the BeppoSAX Wide Field Camera error box of GRB980425, which occurred within about a day of the gamma-ray burst.
Journal ArticleDOI
A hypernova model for the supernova associated with the gamma ray burst of 25 April 1998
Koichi Iwamoto,Paolo A. Mazzali,Ken'ichi Nomoto,Hideyuki Umeda,Takahisa Nakamura,Ferdinando Patat,I. J. Danziger,T. R. Young,Tsutomu Suzuki,Toshikazu Shigeyama,T. Augusteijn,V. Doublier,J.-F. Gonzalez,H. Boehnhardt,J. Brewer,Olivier Hainaut,Christopher Lidman,Bruno Leibundgut,Enrico Cappellaro,Massimo Turatto,Titus Galama,P. M. Vreeswijk,Chryssa Kouveliotou,J. van Paradijs,J. van Paradijs,Elena Pian,E. Palazzi,Filippo Frontera +27 more
TL;DR: The discovery of the unusual supernova SN1998bw, and its possible association with the γ-ray burst GRB 9804251,2,3, provide new insights into the explosion mechanism of very massive stars and the origin of some classes of gamma-ray bursts.
Journal ArticleDOI
The Rapid Decay of the Optical Emission from GRB 980326 and Its Possible Implications
Paul J. Groot,Titus Galama,P. M. Vreeswijk,Ralph A. M. J. Wijers,Elena Pian,Eliana Palazzi,J. van Paradijs,J. van Paradijs,Chryssa Kouveliotou,Chryssa Kouveliotou,J. J. M. in 't Zand,John Heise,C. R. Robinson,C. R. Robinson,Nial R. Tanvir,C. Lidman,C. G. Tinney,M. Keane,Michael S. Briggs,Michael S. Briggs,Kevin Hurley,J.-F. Gonzalez,Patrick B. Hall,Malcolm G. Smith,Ricardo Covarrubias,P.G. Jonker,Jorge Casares,N. Masetti,F. Frontera,M. Feroci,L. Piro,Enrico Costa,Rodney Smith,Byron Jones,David Windridge,J. Bland-Hawthorn,Sylvain Veilleux,Michael R. Garcia,Warren R. Brown,Krzysztof Z. Stanek,A. J. Castro-Tirado,A. J. Castro-Tirado,J. Gorosabel,Jochen Greiner,K. Jäger,Asmus Böhm,Klaus J. Fricke +46 more
TL;DR: In this article, the optical counterpart to GRB 980326 was discovered and its rapid optical decay was characterized by a power law with exponent - 2.10+/-0.13 and a constant underlying source at R{c}}=25.5.
A "Hypernova" Model for SN 1998bw and $\gamma$-Ray Burst of 25 April 1998
K. Iwamoto,B. Leibundgut,J Paradijs,T. Augusteijn,P. A. Mazzali,Tsutomu Suzuki,F. Patat,H Umeda,O R Hainaut,J. Brewer,E. Palazzi,K. Nomoto,Christopher Lidman,Doublier,E. Cappellaro,I. J. Danziger,P. M. Vreeswijk,T R Young,E. Pian,M. Turatto,Takahisa Nakamura,Chryssa Kouveliotou,J.-F. Gonzalez,Filippo Frontera,H. Böhnhardt,Titus Galama,T Shigeyama +26 more