W
W. S. Paciesas
Researcher at University of Alabama in Huntsville
Publications - 193
Citations - 13439
W. S. Paciesas is an academic researcher from University of Alabama in Huntsville. The author has contributed to research in topics: Gamma-ray burst & Fermi Gamma-ray Space Telescope. The author has an hindex of 51, co-authored 193 publications receiving 12765 citations. Previous affiliations of W. S. Paciesas include University of New Hampshire & University of Maryland, College Park.
Papers
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Journal ArticleDOI
BATSE observations of gamma-ray burst spectra. I: Spectral diversity
James L. Matteson,L. Ford,B. E. Schaefer,D. M. Palmer,Bonnard J. Teegarden,T. L. Cline,Michael S. Briggs,W. S. Paciesas,G. N. Pendleton,Gerald J. Fishman,Chryssa Kouveliotou,C. A. Meegan,Robert W. Wilson,P. Lestrade +13 more
TL;DR: In this paper, the authors studied the time-averaged gamma-ray burst spectra accumulated by the spectroscopy detectors of the Burst and Transient Source Experiment (BTSE).
Journal ArticleDOI
Discovery of Intense Gamma-Ray Flashes of Atmospheric Origin
Gerald J. Fishman,P. N. Bhat,Robert S. Mallozzi,John M. Horack,Thomas M. Koshut,Chryssa Kouveliotou,Geoffrey N. Pendleton,Charles A. Meegan,Robert B. Wilson,W. S. Paciesas,Steven J. Goodman,Hugh J. Christian +11 more
TL;DR: Detectors aboard the Compton Gamma Ray Observatory have observed an unexplained terrestrial phenomenon: brief, intense flashes of gamma rays that must originate in the atmosphere at altitudes above at least 30 kilometers in order to escape atmospheric absorption and reach the orbiting detectors.
Journal ArticleDOI
Fermi Observations of High-Energy Gamma-Ray Emission from GRB 080916C
Markus Ackermann,Marco Ajello,Luca Baldini,Jean Ballet,Guido Barbiellini,Guido Barbiellini,Matthew G. Baring,Denis Bastieri,Denis Bastieri,Keith Bechtol,Ronaldo Bellazzini,B. Berenji,P. N. Bhat,Elisabetta Bissaldi,Roger Blandford,Emanuele Bonamente,Emanuele Bonamente,A. W. Borgland,A. Bouvier,Johan Bregeon,Alessandro Brez,Michael S. Briggs,M. Brigida,M. Brigida,P. Bruel,R. Buehler,S. Buson,S. Buson,G. A. Caliandro,R. A. Cameron,P. A. Caraveo,S. Carrigan,J. M. Casandjian,C. Cecchi,C. Cecchi,Omer Celik,Omer Celik,Eric Charles,A. Chekhtman,A. Chekhtman,J. Chiang,Stefano Ciprini,R. Claus,Johann Cohen-Tanugi,Valerie Connaughton,J. Conrad,J. Conrad,S. Cutini,C. D. Dermer,A. De Angelis,F. de Palma,F. de Palma,Seth Digel,E. Do Couto E Silva,Persis S. Drell,R. Dubois,C. Favuzzi,C. Favuzzi,Stephen Fegan,Elizabeth C. Ferrara,M. Frailis,Yasushi Fukazawa,P. Fusco,P. Fusco,F. Gargano,Dario Gasparrini,Neil Gehrels,S. Germani,S. Germani,Nicola Giglietto,Nicola Giglietto,Paolo Giommi,F. Giordano,F. Giordano,Marcello Giroletti,T. Glanzman,G. Godfrey,Jonathan Granot,I. A. Grenier,J. E. Grove,L. Guillemot,L. Guillemot,L. Guillemot,Sylvain Guiriec,D. Hadasch,E. Hays,D. Horan,R. E. Hughes,Gudlaugur Johannesson,A. S. Johnson,W. N. Johnson,T. Kamae,Hideaki Katagiri,R. M. Kippen,Jürgen Knödlseder,D. Kocevski,M. Kuss,J. Lande,L. Latronico,Shiu-Hang Lee,M. Llena Garde,Francesco Longo,Francesco Longo,F. Loparco,F. Loparco,M. N. Lovellette,P. Lubrano,P. Lubrano,A. Makeev,A. Makeev,M. N. Mazziotta,S. McBreen,S. McBreen,Julie McEnery,Julie McEnery,S. McGlynn,S. McGlynn,Charles A. Meegan,J. Mehault,Peter Mészáros,Peter F. Michelson,Tsunefumi Mizuno,A. A. Moiseev,A. A. Moiseev,C. Monte,C. Monte,M. E. Monzani,Elena Moretti,Elena Moretti,A. Morselli,Igor V. Moskalenko,S. Murgia,Hiroshi Nakajima,Takeshi Nakamori,M. Naumann-Godo,P. L. Nolan,J. P. Norris,E. Nuss,Masanori Ohno,T. Ohsugi,Atsushi Okumura,Nicola Omodei,E. Orlando,Jonathan F. Ormes,M. Ozaki,W. S. Paciesas,David Paneque,J. H. Panetta,D. Parent,D. Parent,V. Pelassa,M. Pepe,M. Pepe,Melissa Pesce-Rollins,Vahé Petrosian,F. Piron,T. A. Porter,Robert D. Preece,Judith Racusin,S. Rainò,S. Rainò,Robert R. Rando,Robert R. Rando,Arne Rau,M. Razzano,Soebur Razzaque,Soebur Razzaque,A. Reimer,Olaf Reimer,J. Ripken,M. Roth,Felix Ryde,Felix Ryde,Hartmut Sadrozinski,A. Sander,Jeffrey D. Scargle,T. L. Schalk,Carmelo Sgrò,E. J. Siskind,P. D. Smith,Gloria Spandre,P. Spinelli,P. Spinelli,Michael Stamatikos,Michael Stamatikos,M. S. Strickman,D. J. Suson,Hiroyasu Tajima,Hiromitsu Takahashi,Takaaki Tanaka,J. B. Thayer,J. G. Thayer,L. Tibaldo,Diego F. Torres,Diego F. Torres,Gino Tosti,Gino Tosti,A. Tramacere,T. Uehara,T. L. Usher,Justin Vandenbroucke,A. J. van der Horst,V. Vasileiou,V. Vasileiou,N. Vilchez,V. Vitale,V. Vitale,A. von Kienlin,A. P. Waite,P. Wang,Colleen A. Wilson-Hodge,B. L. Winer,Kent S. Wood,Xue-Feng Wu,Xue-Feng Wu,Ryo Yamazaki,Zhenwei Yang,T. Ylinen,T. Ylinen,M. Ziegler +219 more
TL;DR: The Gamma-ray Burst Monitor and Large Area Telescope onboard the Fermi Observatory together record GRBs over a broad energy range spanning about 7 decades of gammaray energy, with the largest apparent energy release yet measured.
Journal ArticleDOI
A limit on the variation of the speed of light arising from quantum gravity effects
A. A. Abdo,Markus Ackermann,Marco Ajello,Katsuaki Asano,W. B. Atwood,Magnus Axelsson,Magnus Axelsson,Luca Baldini,Jean Ballet,Guido Barbiellini,Guido Barbiellini,Matthew G. Baring,Denis Bastieri,Denis Bastieri,Keith Bechtol,Ronaldo Bellazzini,B. Berenji,P. N. Bhat,Elisabetta Bissaldi,E. D. Bloom,Emanuele Bonamente,Emanuele Bonamente,J. Bonnell,J. Bonnell,A. W. Borgland,A. Bouvier,Johan Bregeon,Alessandro Brez,Michael S. Briggs,M. Brigida,P. Bruel,J. M. Burgess,T. H. Burnett,G.A. Caliandro,R. A. Cameron,P. A. Caraveo,J. M. Casandjian,C. Cecchi,C. Cecchi,Oe Celik,Vandiver Chaplin,E. Charles,C. C. Cheung,C. C. Cheung,James Chiang,Stefano Ciprini,Stefano Ciprini,R. Claus,Johann Cohen-Tanugi,L. R. Cominsky,Valerie Connaughton,Jan Conrad,S. Cutini,C. D. Dermer,A. De Angelis,A. De Angelis,F. de Palma,Seth Digel,Brenda Dingus,E. Do Couto E Silva,Persis S. Drell,Richard Dubois,D. Dumora,Christian Farnier,C. Favuzzi,Stephen Fegan,Justin D. Finke,Gerald J. Fishman,W. B. Focke,Luigi Foschini,Yasushi Fukazawa,Stefan Funk,P. Fusco,F. Gargano,Dario Gasparrini,Neil Gehrels,Neil Gehrels,S. Germani,S. Germani,L. Gibby,B. Giebels,Nicola Giglietto,Francesco Giordano,T. Glanzman,G. Godfrey,Jonathan Granot,Jochen Greiner,I. A. Grenier,M.-H. Grondin,J. E. Grove,Dirk Grupe,L. Guillemot,Sylvain Guiriec,Y. Hanabata,Alice K. Harding,M. Hayashida,E. Hays,E. A. Hoversten,R. E. Hughes,Gudlaugur Johannesson,A. S. Johnson,R. P. Johnson,W. N. Johnson,T. Kamae,Hideaki Katagiri,Jun Kataoka,Jun Kataoka,Nobuyuki Kawai,Matthew Kerr,R. M. Kippen,J. Knoedlseder,Daniel Kocevski,Chryssa Kouveliotou,F. Kuehn,M. Kuss,J. Lande,Luca Latronico,Marianne Lemoine-Goumard,Francesco Longo,Francesco Longo,F. Loparco,Benoit Lott,M. N. Lovellette,P. Lubrano,P. Lubrano,Grzegorz Madejski,A. Makeev,A. Makeev,M. N. Mazziotta,Sheila McBreen,Sheila McBreen,Julie McEnery,S. McGlynn,Peter Mészáros,C. Meurer,Peter F. Michelson,W. Mitthumsiri,Tsunefumi Mizuno,A. A. Moiseev,C. Monte,M. E. Monzani,Elena Moretti,Elena Moretti,A. Morselli,Igor V. Moskalenko,S. Murgia,Takeshi Nakamori,P. L. Nolan,J. P. Norris,Eric Nuss,Masanori Ohno,T. Ohsugi,Nicola Omodei,E. Orlando,Jonathan F. Ormes,M. Ozaki,W. S. Paciesas,David Paneque,J. H. Panetta,D. Parent,V. Pelassa,M. Pepe,M. Pepe,Melissa Pesce-Rollins,Vahé Petrosian,F. Piron,T. A. Porter,Robert D. Preece,S. Rainò,Enrico Ramirez-Ruiz,Riccardo Rando,Riccardo Rando,M. Razzano,Soebur Razzaque,A. Reimer,Olaf Reimer,T. Reposeur,Steven Ritz,L.S. Rochester,A. Y. Rodriguez,M. Roth,Felix Ryde,Hartmut Sadrozinski,David Sanchez,A. Sander,P. M. Saz Parkinson,Jeffrey D. Scargle,T. Schalk,Carmelo Sgrò,E. J. Siskind,David A. Smith,P. D. Smith,Gloria Spandre,P. Spinelli,P. Spinelli,Michael Stamatikos,Michael Stamatikos,Floyd W. Stecker,M. S. Strickman,D. J. Suson,Hiroyasu Tajima,Hiromitsu Takahashi,Tadayuki Takahashi,Takaaki Tanaka,J. B. Thayer,J. G. Thayer,D. J. Thompson,L. Tibaldo,L. Tibaldo,L. Tibaldo,Kenji Toma,Diego F. Torres,Gino Tosti,Gino Tosti,Eleonora Troja,Eleonora Troja,Yasunobu Uchiyama,Yasunobu Uchiyama,T. Uehara,T. L. Usher,A. J. van der Horst,V. Vasileiou,N. Vilchez,V. Vitale,V. Vitale,A. von Kienlin,A. P. Waite,Paul J. Wang,Colleen A. Wilson-Hodge,Brian L Winer,K. S. Wood,Xue-Feng Wu,Xue-Feng Wu,Ryo Yamazaki,T. Ylinen,T. Ylinen,M. Ziegler +236 more
TL;DR: The detection of emission up to ∼31 GeV from the distant and short GRB, and no evidence for the violation of Lorentz invariance is found, which disfavour quantum-gravity theories in which the quantum nature of space–time on a very small scale linearly alters the speed of light.
Journal ArticleDOI
Spatial distribution of γ-ray bursts observed by BATSE
Charles A. Meegan,Gerald J. Fishman,Robert B. Wilson,W. S. Paciesas,Geoffrey N. Pendleton,John M. Horack,Martin N. Brock,C. Kouveliotou,C. Kouveliotou +8 more
TL;DR: In this paper, an analysis of 153 gamma-ray bursts detected by the Burst and Transient Source Experiment on the Compton Gamma Ray Observatory is reported, showing that the number versus intensity distribution does not follow the -3/2 power law expected for a spatially extended homogeneous distribution of sources, while the angular distribution is isotropic within statistical limits.