E
E. Palazzi
Researcher at University of Cologne
Publications - 54
Citations - 9025
E. Palazzi is an academic researcher from University of Cologne. The author has contributed to research in topics: Gamma-ray burst & Afterglow. The author has an hindex of 33, co-authored 54 publications receiving 8596 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
Transient optical emission from the error box of the gamma-ray burst of 28 February 1997
J vanParadijs,J vanParadijs,Paul J. Groot,Titus Galama,Chryssa Kouveliotou,Chryssa Kouveliotou,Richard G. Strom,J. Telting,Rgm Rutten,Gerald J. Fishman,Charles A. Meegan,Max Pettini,Nial R. Tanvir,Joshua S. Bloom,Henrik D. Pedersen,HU NordgaardNielsen,M LindenVornle,Jorge Melnick,G vanderSteene,John Heise,J intZand,Enrico Costa,M. Feroci,L. Piro,F. Frontera,Guido Zavattini,Luciano Nicastro,E. Palazzi,K. Bennet,Lorraine Hanlon,Arvind Parmar +30 more
TL;DR: In this paper, the authors reported the detection of a transient and fading optical source in the error box associated with the burst GRB970228, less than 21 hours after the burst, suggesting that the burst occurred in that galaxy and thus that γ-ray bursts in general lie at cosmological distance.
Journal ArticleDOI
Discovery of the X-Ray Afterglow of the Gamma-Ray Burst of February 28 1997
E. Costa,F. Frontera,John Heise,M. Feroci,J. J. M. in 't Zand,Fabrizio Fiore,Maria Nerina Cinti,D. Dal Fiume,Luciano Nicastro,Mauro Orlandini,E. Palazzi,M. Rapisarda,Guido Zavattini,R. Jager,A. N. Parmar,Alan Owens,S. Molendi,G. Cusumano,M. C. Maccarone,S. Giarrusso,A. Coletta,L. A. Antonelli,P. Giommi,J. M. Muller,L. Piro,R. C. Butler +25 more
TL;DR: The first afterglow of a gamma-ray burst was detected and quickly positioned by the Beppo-SAX satellite on 1997 February 28 (GRB970228) as discussed by the authors.
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.