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William S. Paciesas
Researcher at University of Alabama
Publications - 108
Citations - 5144
William S. Paciesas is an academic researcher from University of Alabama. The author has contributed to research in topics: Gamma-ray burst & Gamma ray. The author has an hindex of 29, co-authored 108 publications receiving 4848 citations. Previous affiliations of William S. Paciesas include University of Alabama in Huntsville & Marshall Space Flight Center.
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Journal ArticleDOI
Identification of two classes of gamma-ray bursts
Chryssa Kouveliotou,Charles A. Meegan,Gerald J. Fishman,Narayana P. Bhat,Michael S. Briggs,Thomas M. Koshut,William S. Paciesas,G. N. Pendleton +7 more
TL;DR: In this paper, the duration distribution of the gamma-ray bursts of the first BATSE catalog is studied and a bimodality in the distribution is found, which separates GRBs into two classes: short events (less than 2 s) and longer ones (more than 2 S).
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The BATSE Gamma-Ray Burst Spectral Catalog. I. High Time Resolution Spectroscopy of Bright Bursts Using High Energy Resolution Data
Robert D. Preece,Michael S. Briggs,Robert S. Mallozzi,G. N. Pendleton,William S. Paciesas,David L. Band +5 more
TL;DR: In this paper, a series of gamma-ray burst spectroscopy catalogs from the Burst and Transient Source Experiment (BATSE) on the Compton Gamma Ray Observatory, each covering a different aspect of burst phenomenology is presented.
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The first BATSE gamma-ray burst catalog
Gerald J. Fishman,Charles A. Meegan,Robert B. Wilson,Martin N. Brock,John M. Horack,Chryssa Kouveliotou,Sethanne Howard,William S. Paciesas,Michael S. Briggs,Geoffrey N. Pendleton,Thomas M. Koshut,Robert S. Mallozzi,Mark Stollberg,John Patrick Lestrade +13 more
TL;DR: The current version (4Br) has been revised from the version first circulated on CD-ROM in 1997 September (4B) to include improved locations for a subset of bursts that have been reprocessed using additional data as mentioned in this paper.
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Evolution of the Low-Energy Photon Spectra in Gamma-Ray Bursts
Anthony Crider,Edison Liang,Ian Smith,Robert D. Preece,Michael S. Briggs,G. N. Pendleton,William S. Paciesas,David L. Band,James L. Matteson +8 more
TL;DR: In this paper, a high degree of positive correlation exists between the time-resolved spectral break energy Epk and a. They also found that in the flux rise phase of hard-to-soft pulses, the mean value of a is often positive, and the explosion's maximum value is inconsistent with a.
Journal ArticleDOI
The 1996 Soft State Transition of Cygnus X-1
Shuang-Nan Zhang,Shuang-Nan Zhang,Wei Cui,B. A. Harmon,William S. Paciesas,William S. Paciesas,R. E. Remillard,J. van Paradijs,J. van Paradijs +8 more
TL;DR: In this paper, the authors report continuous monitoring of Cygnus X-1 in the 1.3-200 keV band using All-Sky Monitor/Rossi X-Ray Timing Explorer and BATSE/Compton Gamma Ray Observatory for about 200 days from 1996 February 21 to early September.