Results 21 to 30 of about 75,738 (243)

Gamma ray astronomy above 30 TeV and the IceCube results

EPJ Web of Conferences, 2017
The study of the diffuse Galactic gamma ray emission is of fundamental importance to understand the properties of cosmic ray propagation in the Milky Way, and extending the measurements to E ≳ 30 TeV is of great interest.
Vernetto Silvia, Lipari Paolo
doaj   +1 more source

Status and recent high light results from the LHAASO experiment [PDF]

EPJ Web of Conferences
The Large High Altitude Air Shower Observatory (LHAASO) experiment, fully operational since July 2021, is a cutting-edge facility for detecting cosmic rays and gamma rays across a wide energy range. This paper offers an overview of the current status and
Chen Songzhan
doaj   +1 more source

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

Massive protostars as gamma-ray sources [PDF]

, 2009
Massive protostars have associated bipolar outflows with velocities of hundreds of km s$^{-1}$. Such outflows can produce strong shocks when interact with the ambient medium leading to regions of non-thermal radio emission.
A. T. Araudo, Araudo, Araudo, Banerjee, Banerjee, Bell, Blondin, Blumenthal, Bonnell, Bordas, Crusius-Watzel, Crutcher, Dogiel, Drury, Drury, Fermi, G. E. Romero, Garay, Garay, Garay, Henriksen, J. M. Paredes, Kaiser, Kelner, Lucek, Martí, Martí, McKee, Morrison, Myasnikov, Plambeck, Pravdo, Reville, Rodríguez, Rodríguez, Romero, Seaton, Shu, V. Bosch-Ramon   +38 more
core   +6 more sources

Characteristics of extensive air showers around the energy threshold for ground-particle-based $$\gamma $$ γ -ray observatories

European Physical Journal C: Particles and Fields, 2019
Very-high-energy $$\gamma $$ γ -ray astronomy based on the measurement of air shower particles at ground-level has only recently been established as a viable approach, complementing the well established air Cherenkov technique.
Harm Schoorlemmer, Jim Hinton, Rubén López-Coto   +2 more
doaj   +1 more source

Highest Energy Cosmic Rays

, 2004
We review the current state and future prospect of ultra high energy cosmic ray physics and the relationship between cosmic rays and gamma-ray astrophysics.Comment: 12 pages, in the proceedings of the Gamma 2004 Symposium on High-Energy Gamma-Ray ...
Olinto, A. V.
core   +2 more sources

Revision of the γ-Ray Emission from SNR CTB 109 with the Fermi Large Area Telescope

The Astrophysical Journal, 2023
CTB 109 is a middle-aged shell-type supernova remnant (SNR) with bright thermal X-ray emission. We reanalyze the GeV γ -ray emission from CTB 109 using 13 yr of Pass 8 data recorded by the Fermi Large Area Telescope.
Yuliang Xin, Qizhen Zhao, Xiaolei Guo
doaj   +1 more source

Very High Energy Gamma-Ray Observations of the Galactic Centre Region [PDF]

, 2008
Recent progress in pushing the sensitivity of the Imaging Atmospheric Cherenkov Technique into the 10 mCrab regime has enabled first sensitive observations of the innermost few 100 pc of the Milky Way in Very High Energy (VHE; >100 GeV) gamma rays. These
Christopher van Eldik, Felix A. Aharonian, Frank Rieger, Werner Hofmann   +3 more
core   +2 more sources

High energy processes in microquasars [PDF]

, 2005
Microquasars are X-ray binary stars with the capability to generate relativisticjets. It is expected that microquasars are gamma-ray sources, because of the analogy with quasars and because the theoretical models predict emission at such energy range. In
Paredes, Josep M.
core   +2 more sources

Identification of High Energy Gamma Particles From the Cherenkov Gamma Telescope Data Using a Deep Learning Approach

IEEE Access
Atmospheric Cherenkov telescopes have enabled recent breakthroughs in gamma-ray astronomy, enabling the study of high-energy gamma particles in over 90 galactic and extragalactic regions.
K. Karthick, S. Akila Agnes, S. Sendil Kumar, Sultan Alfarhood, Mejdl Safran   +4 more
doaj   +1 more source