A5033855664- Gamma-ray bursts and supernovae
- Astrophysics and Cosmic Phenomena
- Particle Detector Development and Performance
- Astronomical Observations and Instrumentation
- Nuclear Physics and Applications
- Species Distribution and Climate Change
- Historical Astronomy and Related Studies
- Solar and Space Plasma Dynamics
- Geomagnetism and Paleomagnetism Studies
- Radio Astronomy Observations and Technology
- Ecology and Vegetation Dynamics Studies
- Dark Matter and Cosmic Phenomena
- Ionosphere and magnetosphere dynamics
- Plant responses to elevated CO2
- Medical Imaging Techniques and Applications
- Stellar, planetary, and galactic studies
- Advanced Physical and Chemical Molecular Interactions
- Astronomy and Astrophysical Research
- 3D Surveying and Cultural Heritage
- Chemical and Physical Properties of Materials
- Radiation Therapy and Dosimetry
- Adaptive optics and wavefront sensing
- Climate Change and Health Impacts
- Neutrino Physics Research
- Augmented Reality Applications
University of Louisiana at Lafayette
2023
Goddard Space Flight Center
1997-2013
RTX (United States)
1999-2013
University College London
1997-2002
Jensen Hughes (United States)
1997
The third catalog of high-energy gamma-ray sources detected by the EGRET telescope on Compton Gamma Ray Observatory includes data from 1991 April 22 to 1995 October 3 (cycles 1, 2, 3, and 4 mission). In addition including more than second its supplement, this uses completely reprocessed (to correct a number mostly minimal errors problems). 271 (E > 100 MeV) in include single solar flare bright enough be as source, Large Magellanic Cloud, five pulsars, one probable radio galaxy detection (Cen...
view Abstract Citations (463) References (44) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Second EGRET Catalog of High-Energy Gamma-Ray Sources Thompson, D. J. ; Bertsch, L. Dingus, B. Esposito, A. Etienne, Fichtel, C. E. Friedlander, P. Hartman, R. Hunter, S. Kendig, Mattox, McDonald, M. von Montigny, Mukherjee, Ramanamurthy, V. Sreekumar, Fierro, Lin, Y. Michelson, F. Nolan, Shriver, K. Willis, T. Kanbach, G. Mayer-Hasselwander, H. Merck, Radecke,...
view Abstract Citations (339) References (41) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The First Energetic Gamma-Ray Experiment Telescope (EGRET) Source Catalog Fichtel, C. E. ; Bertsch, D. L. Chiang, J. Dingus, B. Esposito, A. Fierro, M. Hartman, R. Hunter, S. Kanbach, G. Kniffen, Kwok, P. W. Lin, Y. Mattox, Mayer-Hasselwander, H. McDonald, Michelson, F. von Montigny, Nolan, Pinkau, K. Radecke, -D. Rothermel, Sreekumar, Sommer, Schneid, Thompson,...
The Energetic Gamma Ray Experiment Telescope (EGRET) on the Compton Observatory (CGRO) has so far detected 51 blazars during phases 1, 2, and 3, cycle 4 of CGRO mission. We present here a summary these observations, including flux variations spectra blazars. high luminosities time seen in gamma-ray data indicate that gamma rays are an important component relativistic jet thought to characterize
view Abstract Citations (123) References (15) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Supplement to the Second EGRET Catalog of High-Energy Gamma-Ray Sources Thompson, D. J. ; Bertsch, L. Dingus, B. Esposito, A. Etienne, Fichtel, C. E. Friedlander, P. Hartman, R. Hunter, S. Kendig, Mattox, McDonald, M. Mukherjee, Ramanamurthy, V. Sreekumar, von Montigny, Fierro, Jones, Lin, Y. Michelson, F. Nolan, Tompkins, W. Willis, T. Kanbach, G....
The Energetic Gamma-Ray Experiment Telescope (EGRET) on the Compton Observatory has been operating for over 7 yr since its launch in 1991 April. This span of time far exceeds design lifetime 2 yr. As instrument aged, several changes have occurred owing to spark chamber gas exchanges as well some hardware degradation and failures, all which an influence sensitivity. paper describes postlaunch measurements analysis that are done calibrate response functions. updated characteristics...
view Abstract Citations (38) References (13) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Search of the Energetic Gamma-Ray Experiment Telescope (EGRET) Data for High-Energy Microsecond Bursts Fichtel, C. E. ; Bertsch, D. L. Dingus, B. Esposito, J. A. Hartman, R. Hunter, S. Kanbach, G. Kniffen, Lin, Y. Mattox, Mayer-Hasselwander, H. McDonald, Michelson, P. F. von Montigny, Nolan, Schneid, Sreekumar, Thompson, Hawking (1974) and Page & (1976) investigated...
Heat waves are becoming more frequent and intense with climate change, but the demographic evolutionary consequences of heat rarely investigated in herbaceous plant species. We examine a short extreme wave Oregon populations common yellow monkeyflower (
Abstract Heatwaves are becoming more frequent and intense with climate change, but the demographic evolutionary consequences of heatwaves rarely investigated in herbaceous plant species. We examine a short extreme heatwave Oregon populations common yellow monkeyflower ( Mimulus guttatus ) by leveraging garden experiment planted range-wide observational studies eleven local populations. In garden, 89% seedlings died during including >96% from geographically-local Some hotter drier...
In the mid 1970’s Hawking (1) and Page (2), investigated theoretically possibility of detecting high-energy gamma rays produced by quantum-mechanical decay a small black hole created in early universe. They concluded that, at end life hole, it would radiate burst peaked near 250 MeV with total energy about 1034 ergs order microsecond or less if certain details theory were true. The characteristics are determined laws physics beyond range current particle accelerators; hence, search for these...