Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Robert S. Mallozzi"'
Autor:
W. S. Paciesas, Robert S. Mallozzi, T. Giblin, David L. Band, Michael S. Briggs, Geoffrey N. Pendleton, Robert D. Preece
Publikováno v:
The Astrophysical Journal. 581:1248-1255
The current scenario for gamma-ray bursts (GRBs) involves internal shocks for the prompt GRB emission phase and external shocks for the afterglow phase. Assuming optically thin synchrotron emission from isotropically distributed energetic shocked ele
Autor:
Robert S. Mallozzi, Geoffrey N. Pendleton, David J. Haglin, Richard J. Roiger, Jon Hakkila, Charles A. Meegan
Publikováno v:
The Astrophysical Journal. 538:165-180
Guided by the Supervised pattern recognition algorithm C4.5, we examine the three gamma-ray burst classes identified by Mukherjee et al. C4.5 provides strong statistical support for this classification. However, with C4.5 and our knowledge of the BAT
Autor:
Robert D. Preece, Robert S. Mallozzi, William S. Paciesas, Michael S. Briggs, David L. Band, G. N. Pendleton
Publikováno v:
The Astrophysical Journal Supplement Series. 126:19-36
This is the first in 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. In this paper, we present tim
Autor:
R.M. Kippen, Gerald J. Fishman, Thomas A. Parnell, Keith Rielage, M. Christl, Robert S. Mallozzi, J. H. Buckley, W. R. Binns, M. H. Israel, T.M. Koshut, P. Dowkonti, J. W. Epstein, G. N. Pendleton, G.A. Richardson, Paul L. Hink, R.B. Wilson
Publikováno v:
IEEE Transactions on Nuclear Science. 46:1920-1924
The Scintillating Fiber Telescope for Energetic Radiation (SIFTER) is a large-area instrument concept for high-energy (E>10 MeV) gamma-ray astronomy. It takes advantage of the technology of fine (/spl sim/1 mm/sup 2/) plastic scintillating fibers in
Autor:
Geoffrey N. Pendleton, Michael S. Briggs, Robert S. Mallozzi, W. S. Paciesas, David L. Band, Charles A. Meegan, James L. Matteson, Robert D. Preece
Publikováno v:
The Astrophysical Journal. 496:849-862
We report on the temporal behavior of the high-energy power law continuum component of gamma-ray burst spectra with data obtained by the Burst and Transient Source Experiment. We have selected 126 high fluence and high flux bursts from the beginning
Autor:
W. S. Paciesas, John M. Horack, David L. Band, Geoffrey N. Pendleton, Jon Hakkila, Michael S. Briggs, Robert D. Preece, Chryssa Kouveliotou, Thomas M. Koshut, R. T. Skelton, Gerald J. Fishman, Charles A. Meegan, James L. Matteson, L. A. Ford, Robert S. Mallozzi
Publikováno v:
The Astrophysical Journal. 489:175-198
It is shown in this study that two different types of spectral emission are generally produced in gamma-ray bursts. A subset of bursts is identified that exhibits a marked lack of fluence above 300 keV, and these bursts are shown to have luminosities
Publikováno v:
The Astrophysical Journal. 472:25-33
The distance scale to cosmic gamma-ray bursts (GRBs) is still uncertain by many orders of magnitude; however, one viable scenario places GRBs at cosmological distances, thereby permitting them to be used as tracers of the cosmological expansion over
Effects of Spectral Shape on Cosmological Models of the BATSE Gamma‐Ray Burst Intensity Distribution
Publikováno v:
The Astrophysical Journal. 471:636-642
We have used the photon energy spectra of 100 bright gamma-ray bursts (GRBs) obtained from data from the Large Area Detectors of the Burst and Transient Source Experiment (BATSE) on the Compton Gamma-Ray Observatory to examine the effects of spectral
Autor:
G. N. Pendleton, Robert B. Wilson, Tom M. Koshut, John M. Horack, Gerald J. Fishman, William S. Paciesas, John Patrick Lestrade, Charles A. Meegan, Robert S. Mallozzi
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 364:567-577
The detector response matrices for the Burst And Transient Source Experiment (BATSE) on board the Compton Gamma Ray Observatory (CGRO) are described, including their creation and operation in data analysis. These response matrices are a detailed abst
Autor:
Michael S. Briggs, Charles A. Meegan, Jon Hakkila, W. S. Paciesas, Robert S. Mallozzi, G. Emslie, John M. Horack, Geoffrey N. Pendleton
Publikováno v:
Astrophysics and Space Science. 231:369-372
Constraints are found on the gamma-ray burst luminosity function from an analysis of the combined BATSE/PVO intensity distribution. If bursts originate in an extended Galactic halo, then the intrinsic luminosity range is narrow, with bursts spanning