Results 11 to 20 of about 74,585 (251)

Galactic Diffuse γ-Ray Emission from GeV to PeV Energies in Light of Up-to-date Cosmic-Ray Measurements

The Astrophysical Journal, 2023
Diffuse γ -ray emission between 10 and 1000 TeV from the Galactic plane was recently measured by the Large High Altitude Air Shower Observatory (LHAASO).
Rui Zhang, Xiaoyuan Huang, Zhi-Hui Xu, Shiping Zhao, Qiang Yuan   +4 more
doaj   +1 more source

Status of the VERITAS Observatory [PDF]

, 2008
VERITAS, an Imaging Atmospheric Cherenkov Telescope (IACT) system for gammma-ray astronomy in the GeV-TeV range, has recently completed its first season of observations with a full array of four telescopes.
A. Cannon, A. Cesarini, A. D. Falcone, A. Furniss, A. Imran, A. Konopelko, A. McCann, A. W. Smith, A. Weinstein, B. Zitzer, C. M. Hui, D. A. Williams, D. B. Kieda, D. Hanna, D. Horan, D. Pandel, D. Steele, E. Aliu, E. Hays, F. Krennrich, Felix A. Aharonian, Frank Rieger, G. Finnegan, G. Gyuk, G. H. Gillanders, G. H. Sembroski, G. Maier, H. J. Rose, H. Krawczynski, J. A. Toner, J. E. Ward, J. Grube, J. H. Buckley, J. Holder, J. Kildea, J. Niemiec, J. P. Finley, J. Quinn, J. S. Perkins, K. L. Byrum, K. Ragan, L. C. Reyes, L. Ciupik, L. F. Fortson, L. Valcarcel, M. Beilicke, M. J. Lang, M. K. Daniel, M. Kertzman, M. McCutcheon, M. Pohl, M. Schroedter, M. Wood, N. Karlsson, O. Celik, P. Cogan, P. Colin, P. Fortin, P. Kaaret, P. Moriarty, P. T. Reynolds, R. A. Ong, R. Guenette, R. J. White, R. Mukherjee, R. Wagner, S. A. Wissel, S. J. Fegan, S. LeBohec, S. M. Bradbury, S. P. Swordy, S. P. Wakely, T. Arlen, T. B. Humensky, T. C. Weekes, T. Ergin, T. Nagai, V. A. Acciari, V. Bugaev, V. V. Vassiliev, W. Benbow, W. Cui, Werner Hofmann, Y. Butt, Y. C. K. Chow   +84 more
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AGILE Gamma-Ray Detection of the Exceptional GRB 221009A

The Astrophysical Journal Letters, 2023
Gamma-ray emission in the MeV–GeV range from explosive cosmic events is of invaluable relevance to understanding physical processes related to the formation of neutron stars and black holes.
Marco Tavani, Giovanni Piano, Andrea Bulgarelli, Luca Foffano, Alessandro Ursi, Francesco Verrecchia, Carlotta Pittori, Claudio Casentini, Andrea Giuliani, Francesco Longo, Gabriele Panebianco, Ambra Di Piano, Leonardo Baroncelli, Valentina Fioretti, Nicolò Parmiggiani, Andrea Argan, Alessio Trois, Stefano Vercellone, Martina Cardillo, Lucio Angelo Antonelli, Guido Barbiellini, Patrizia Caraveo, Paolo W. Cattaneo, Andrew W. Chen, Enrico Costa, Ettore Del Monte, Guido Di Cocco, Immacolata Donnarumma, Yuri Evangelista, Marco Feroci, Fulvio Gianotti, Claudio Labanti, Francesco Lazzarotto, Paolo Lipari, Fabrizio Lucarelli, Martino Marisaldi, Sandro Mereghetti, Aldo Morselli, Luigi Pacciani, Alberto Pellizzoni, Francesco Perotti, Piergiorgio Picozza, Maura Pilia, Massimo Rapisarda, Andrea Rappoldi, Alda Rubini, Paolo Soffitta, Massimo Trifoglio, Valerio Vittorini, Fabio D’Amico   +49 more
doaj   +1 more source

Radio and γ-ray Evidence for the Supernova Origin of High-velocity Cloud Complex M

The Astrophysical Journal, 2023
Using λ 21 cm galactic neutral hydrogen data from the HI4PI survey and 0.75–30 MeV γ -ray emission from the Imaging Compton Telescope, we have searched for the origin event that accelerated high-velocity cloud Complex M.
J. T. Schmelz, G. L. Verschuur
doaj   +1 more source

Gamma-Rays as Probes for the Multi-Dimensionality of Type Ia Supernovae [PDF]

, 2001
We present $\gamma $-ray spectra for a set of Type Ia supernovae models. Our study is based on a detailed Monte Carlo transport scheme for both spherical and full 3-D geometries.
Aldering, Ambwani, Burrows, Chan, Clayton, Domı́nguez, Filippenko, Hamuy, Howell, Höflich, Höflich, Höflich, Höflich, Höflich, Iwamoto, Khokhlov, Leibundgut, Lisewski, Nomoto, Nomoto, P Höflich, Perlmutter, Pinto, Riess, Saha, Schmidt, Wang, Wang   +27 more
core   +3 more sources

Advanced Compton Telescope Designs and SN Science [PDF]

, 2001
The Advanced Compton Telescope (ACT) has been suggested to be the optimal next-generation instrument to study nuclear gamma-ray lines. In this work, we investigate the potential of three hypothetical designs of the ACT to perform SN science.
Burrows, Cappellaro, Chan, Clayton, Diehl, Guessoum, Hamuy, Harris, Höflich, Höflich, Iwamoto, J.D Kurfess, Kinzer, Knodlseder, L.-S The, Milne, Nomoto, P.A Milne, Pinto, Prantzos, R.A Kroeger, The, Yamaoka   +22 more
core   +3 more sources

A Stochastic Approach to Reconstruct Gamma-Ray-burst Light Curves

The Astrophysical Journal Supplement Series, 2023
Gamma-ray bursts (GRBs), as they are observed at high redshift ( z = 9.4), are vital to cosmological studies and investigating Population III stars. To tackle these studies, we need correlations among relevant GRB variables with the requirement of small ...
Maria G. Dainotti, Ritwik Sharma, Aditya Narendra, Delina Levine, Enrico Rinaldi, Agnieszka Pollo, Gopal Bhatta   +6 more
doaj   +1 more source

GeV Analysis of Mixed Morphology Supernova Remnants Interacting with Molecular Clouds [PDF]

, 2012
The first remnants detected by the Fermi Gamma-ray Space Telescope were of the type of mixed-morphology supernova remnants interacting with molecular clouds.
Ercan, E. Nihal, Ergin, Tülün
core   +2 more sources

GammaLearn - first steps to apply Deep Learning to the Cherenkov Telescope Array data [PDF]

EPJ Web of Conferences, 2019
The Cherenkov Telescope Array (CTA) is the next generation of ground-based gamma-ray telescopes for gamma-ray astronomy. Two arrays will be deployed composed of 19 telescopes in the Northern hemisphere and 99 telescopes in the Southern hemisphere. Due to
Vuillaume Thomas, Mikael Jacquemont, Antiga Luca, Benoit Alexandre, Lambert Patrick, Maurin Gilles, Silvestri Giorgia   +6 more
doaj   +1 more source

TeV Instrumentation: Current and Future

Galaxies, 2022
During the last 20 years, TeV astronomy has turned from a fledgling field, with only a handful of sources, into a fully-developed astronomy discipline, broadening our knowledge on a variety of types of TeV gamma-ray sources. This progress has been mainly
Julian Sitarek
doaj   +1 more source