R
Ralph A. M. J. Wijers
Researcher at University of Amsterdam
Publications - 497
Citations - 37246
Ralph A. M. J. Wijers is an academic researcher from University of Amsterdam. The author has contributed to research in topics: Gamma-ray burst & Afterglow. The author has an hindex of 88, co-authored 495 publications receiving 34596 citations. Previous affiliations of Ralph A. M. J. Wijers include Stony Brook University & State University of New York System.
Papers
More filters
Journal ArticleDOI
LOFAR: The LOw-Frequency ARray
M. P. van Haarlem,Michael W. Wise,Michael W. Wise,A. W. Gunst,George Heald,John McKean,Jason W. T. Hessels,Jason W. T. Hessels,de Antonius Bruyn,de Antonius Bruyn,R. Nijboer,John D. Swinbank,Richard Fallows,Michiel A. Brentjens,A. Nelles,Rainer Beck,Heino Falcke,Heino Falcke,Rob Fender,Jörg R. Hörandel,Luitje Koopmans,G. Mann,George K. Miley,Huub Röttgering,B. W. Stappers,Ralph A. M. J. Wijers,Saleem Zaroubi,M. van den Akker,A. Alexov,J. M. Anderson,Kenneth C. Anderson,A. van Ardenne,A. van Ardenne,Michel Arts,Ashish Asgekar,I. M. Avruch,I. M. Avruch,F. Batejat,L. Bähren,Martin Bell,Michael R. Bell,I. van Bemmel,P. Bennema,Mark J. Bentum,Gianni Bernardi,Philip Best,Laura Birzan,Annalisa Bonafede,Albert-Jan Boonstra,Robert Braun,Joel N. Bregman,F. Breitling,R. H. van de Brink,J. W. Broderick,P. C. Broekema,W. N. Brouw,W. N. Brouw,Marcus Brüggen,Harvey Butcher,Harvey Butcher,W. A. van Cappellen,B. Ciardi,T. Coenen,John Conway,A. H. W. M. Coolen,Arthur Corstanje,S. Damstra,O. Davies,Adam Deller,R. J. Dettmar,G. van Diepen,K. Dijkstra,P. Donker,A. Doorduin,J. Dromer,M. Drost,A. van Duin,Jochen Eislöffel,J. van Enst,Chiara Ferrari,Wilfred Frieswijk,H. Gankema,M. A. Garrett,M. A. Garrett,F. de Gasperin,M. Gerbers,E. de Geus,J.-M. Grießmeier,J.-M. Grießmeier,T. Grit,P. Gruppen,J. P. Hamaker,Tim Hassall,Matthias Hoeft,H. A. Holties,A. Horneffer,A. Horneffer,A. J. van der Horst,A. van Houwelingen,A. Huijgen,Marco Iacobelli,Hubertus Intema,Hubertus Intema,N. J. Jackson,Vibor Jelić,A. de Jong,E. Juette,D. Kant,Aris Karastergiou,A. Koers,H. Kollen,V. I. Kondratiev,E. Kooistra,Y. Koopman,A. Koster,M. Kuniyoshi,Michael Kramer,Michael Kramer,G. Kuper,P. Lambropoulos,Casey J. Law,Casey J. Law,J. van Leeuwen,J. van Leeuwen,J. Lemaitre,M. Loose,P. Maat,Giulia Macario,Sera Markoff,J. Masters,J. Masters,Rebecca McFadden,D. McKay-Bukowski,H. Meijering,H. Meulman,M. Mevius,Enno Middelberg,R. Millenaar,James Miller-Jones,James Miller-Jones,R. N. Mohan,J. D. Mol,J. Morawietz,Raffaella Morganti,Raffaella Morganti,D. D. Mulcahy,E. Mulder,H. Munk,Lambert J.M. Nieuwenhuis,R. van Nieuwpoort,J. E. Noordam,M. J. Norden,A. Noutsos,A. R. Offringa,Hans Olofsson,Amitesh Omar,Emanuela Orrú,Emanuela Orrú,R. Overeem,H. Paas,M. Pandey-Pommier,Vishambhar Pandey,Roberto Pizzo,A. G. Polatidis,D. A. Rafferty,Steve Rawlings,W. Reich,J.-P. de Reijer,J. Reitsma,G.A. Renting,P. Riemers,E. Rol,J. W. Romein,J. Roosjen,M. Ruiter,Anna M. M. Scaife,K. van der Schaaf,Bart Scheers,Bart Scheers,Pim Schellart,A. P. Schoenmakers,G. Schoonderbeek,M. Serylak,M. Serylak,Aleksandar Shulevski,J. Sluman,Oleg Smirnov,Charlotte Sobey,H. Spreeuw,Matthias Steinmetz,C. G. M. Sterks,H.-J. Stiepel,K. Stuurwold,Michel Tagger,Y. Tang,C. Tasse,I. Thomas,Satyendra Thoudam,M. C. Toribio,B. van der Tol,O. Usov,M. van Veelen,A.-J. van der Veen,S. ter Veen,Joris P. W. Verbiest,R. Vermeulen,N. J. Vermaas,C. Vocks,C. Vogt,M. de Vos,E. van der Wal,R. J. van Weeren,R. J. van Weeren,H. Weggemans,Patrick Weltevrede,Simon D. M. White,Stefan J. Wijnholds,T. Wilhelmsson,Olaf Wucknitz,Sarod Yatawatta,Philippe Zarka,Anton Zensus,J. E. van Zwieten +222 more
TL;DR: In dit artikel zullen the authors LOFAR beschrijven: van de astronomische mogelijkheden met de nieuwe telescoop tot aan een nadere technische beshrijving of het instrument.
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
LOFAR: The LOw-Frequency ARray
M. P. van Haarlem,Michael W. Wise,A. W. Gunst,George Heald,John McKean,Jason W. T. Hessels,A. G. de Bruyn,R. Nijboer,John D. Swinbank,Richard Fallows,Michiel A. Brentjens,A. Nelles,Rainer Beck,Heino Falcke,Rob Fender,Jörg R. Hörandel,Léon V. E. Koopmans,G. Mann,George K. Miley,Huub Röttgering,B. W. Stappers,Ralph A. M. J. Wijers,Saleem Zaroubi,M. van den Akker,A. Alexov,James M. Anderson,Kenneth C. Anderson,A. van Ardenne,Michel Arts,Ashish Asgekar,I. M. Avruch,F. Batejat,L. Bähren,Martin Bell,Michael R. Bell,I. van Bemmel,P. Bennema,Mark J. Bentum,Gianni Bernardi,P. N. Best,Laura Birzan,Annalisa Bonafede,Albert-Jan Boonstra,Robert Braun,Joel N. Bregman,F. Breitling,R. H. van de Brink,J. W. Broderick,P. C. Broekema,W. N. Brouw,Marcus Brüggen,Harvey Butcher,W. A. van Cappellen,B. Ciardi,T. Coenen,John Conway,A. H. W. M. Coolen,Arthur Corstanje,S. Damstra,O. Davies,Adam Deller,R. J. Dettmar,G. van Diepen,K. Dijkstra,P. Donker,A. Doorduin,J. Dromer,M. Drost,A. van Duin,Jochen Eislöffel,J. van Enst,Chiara Ferrari,Wilfred Frieswijk,H. Gankema,M. A. Garrett,F. de Gasperin,M. Gerbers,E. de Geus,J.-M. Grießmeier,T. Grit,P. Gruppen,J. P. Hamaker,Tim Hassall,Matthias Hoeft,H. A. Holties,A. Horneffer,A. J. van der Horst,A. van Houwelingen,A. Huijgen,Marco Iacobelli,Hubertus Intema,N. J. Jackson,Vibor Jelić,A. de Jong,E. Juette,D. Kant,Aris Karastergiou,A. Koers,H. Kollen,V. I. Kondratiev,E. Kooistra,Y. Koopman,A. Koster,M. Kuniyoshi,Michael Kramer,Gerard H. Kuper,P. Lambropoulos,Casey J. Law,J. van Leeuwen,J. Lemaitre,M. Loose,P. Maat,Giulia Macario,Sera Markoff,J. Masters,D. McKay-Bukowski,H. Meijering,H. Meulman,Maaijke Mevius,Enno Middelberg,R. Millenaar,James Miller-Jones,R. N. Mohan,J. D. Mol,J. Morawietz,Raffaella Morganti,D. D. Mulcahy,E. Mulder,H. Munk,Lambert J.M. Nieuwenhuis,R.V. van Nieuwpoort,J. E. Noordam,M. J. Norden,A. Noutsos,A. R. Offringa,Hans Olofsson,Amitesh Omar,Emanuela Orrú,R. Overeem,H. Paas,M. Pandey-Pommier,Vishambhar Pandey,Roberto Pizzo,A. G. Polatidis,D. A. Rafferty,Steve Rawlings,W. Reich,J.-P. de Reijer,J. Reitsma,A. Renting,P. Riemers,E. Rol,J. W. Romein,J. Roosjen,M. Ruiter,Anna M. M. Scaife,K. van der Schaaf,B. Scheers,Pim Schellart,A. P. Schoenmakers,G. Schoonderbeek,M. Serylak,Aleksandar Shulevski,J. Sluman,Oleg Smirnov,Charlotte Sobey,H. Spreeuw,Matthias Steinmetz,C. G. M. Sterks,H.-J. Stiepel,K. Stuurwold,Michel Tagger,Y. Tang,C. Tasse,I. Thomas,Satyendra Thoudam,M. C. Toribio,B. van der Tol,O. Usov,M. van Veelen,A. van Veen,S. ter Veen,Joris P. W. Verbiest,R. Vermeulen,N. J. Vermaas,C. Vocks,C. Vogt,M. de Vos,E. van der Wal,R. J. van Weeren,H. Weggemans,Patrick Weltevrede,Simon D. M. White,Stefan J. Wijnholds,T. Wilhelmsson,Olaf Wucknitz,Sarod Yatawatta,P. Zarka,Anton Zensus,J. E. van Zwieten +199 more
TL;DR: The International LOFAR Telescope (ILT) as mentioned in this paper is a new-generation radio interferometer constructed in the north of the Netherlands and across europe, which covers the largely unexplored low frequency range from 10-240 MHz and provides a number of unique observing capabilities.
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 very energetic supernova associated with the |[gamma]|-ray burst of 29 March 2003
Jens Hjorth,Jesper Sollerman,Palle Møller,Johan P. U. Fynbo,Stan Woosley,Chryssa Kouveliotou,Nial R. Tanvir,Jochen Greiner,Michael I. Andersen,A. J. Castro-Tirado,José María Castro Cerón,Andrew S. Fruchter,Javier Gorosabel,Javier Gorosabel,Pall Jakobsson,Lex Kaper,Sylvio Klose,N. Masetti,Holger Pedersen,Kristian Pedersen,Elena Pian,Eliana Palazzi,James E. Rhoads,E. Rol,Edward P. J. van den Heuvel,Paul Vreeswijk,Darach Watson,Ralph A. M. J. Wijers +27 more
TL;DR: In this article, the authors reported evidence for a very energetic supernova (a hypernova), temporally and spatially coincident with a gamma-ray burst at redshift z=0.1685.