Gamma Ray Astronomy - An Overview of the Galactic Diffuse Emission: The Origin and Confinement of Cosmic Rays

1989 ◽  
pp. 1-20 ◽  
Author(s):  
Livio Scarsi
Keyword(s):  
Cosmic Rays ◽  
Gamma Ray ◽  
Diffuse Emission ◽  
Gamma Ray Astronomy

scholarly journals Recent Status of High-Energy Gamma-Ray Astronomy

2003 ◽  
Vol 214 ◽  
pp. 382-386
Author(s):  
Masato Takita
Keyword(s):  
Cosmic Rays ◽  
Gamma Ray ◽  
High Energy ◽  
Gamma Ray Astronomy ◽  
High Energy Gamma ◽  
Energy Gamma

Sub-TeV and TeV energy gamma-ray astronomy reveals non-thermal gamma-ray pictures of our universe and serve as a probe to understand the origin, acceleration and propagation of cosmic rays. Recent status of ground-based high-energy gamma-ray astronomy is reviewed.

Gamma Ray Astronomy and the Origin of Cosmic Rays

1981 ◽  
Vol 29 (3) ◽  
pp. 95-134 ◽  
Author(s):  
Reinhard Schlickeiser
Keyword(s):  
Cosmic Rays ◽  
Gamma Ray ◽  
Gamma Ray Astronomy

scholarly journals Cosmic Rays from Regions of Star Formation III. The Role of T-Tauri Stars in the Rho Oph Cloud

1981 ◽  
Vol 94 ◽  
pp. 325-326
Author(s):  
J. A. Paul ◽  
M. Cassé ◽  
T. Montmerle
Keyword(s):  
Star Formation ◽  
Cosmic Rays ◽  
Gamma Ray ◽  
Cosmic Ray ◽  
T Tauri Stars ◽  
Gamma Ray Astronomy ◽  
T Tauri ◽  
Cloud Complex

It has long been expected that gamma-ray astronomy will visualize the mysterious cosmic-ray (CR) sources. Indeed, on the basis of COS-B observations, it has been proposed that CR acceleration within the Rho Oph cloud complex (ROCC) is required to account for its gamma-ray luminosity (Cassé and Paul, 1980, herein after CP, Bignami and Morfill, 1980). However, Issa et al. (1980) have suggested that the size of the ROCC has been underestimated by a factor ≃2, and that the cloud mass is a factor ≃ 4 higher than given by Myers et al. (1978), making unnecessary CR acceleration and trapping in the cloud interior.

scholarly journals TAIGA - a hybrid array for high energy gamma astronomy and cosmic ray physics

2018 ◽  
Vol 191 ◽  
pp. 01007 ◽  
Author(s):  
N. Budnev ◽  
I. Astapov ◽  
P. Bezyazeekov ◽  
V. Boreyko ◽  
A. Borodin ◽  
...  
Keyword(s):  
Cosmic Rays ◽  
Gamma Ray ◽  
High Sensitivity ◽  
Cosmic Ray ◽  
High Energy ◽  
Gamma Ray Astronomy ◽  
Local Sources ◽  
Gamma Astronomy ◽  
Energy Gamma ◽  
The Given

The physics motivations and advantages of the new TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) detector are presented. TAIGA aims at gamma-ray astronomy at energies from a few TeV to several PeV, as well as cosmic ray physics from 100 TeV to several EeV. For the energy range 30 – 200 TeV the sensitivity of 10 km2 area TAIGA array for the detection of local sources is expected to be 5 × 10-14 erg cm-2 sec-1 for 300 h of observations. Reconstruction of the given EAS energy, incoming direction and its core position, based on the timing TAIGA-HiSCORE data, allows one to increase a distance between the IACTs up to 600-1000 m. The low investments together with the high sensitivity for energies ≥ 30-50 TeV make this pioneering technique very attractive for exploring the galactic PeVatrons and cosmic rays. At present the TAIGA first stage has been constructed in Tunka valley, 50 km West from the Lake Baikal. The first experimental results of the TAIGA first stage are presented.

scholarly journals Gamma-ray observations of supernova remnants

2013 ◽  
Vol 9 (S296) ◽  
pp. 287-294
Author(s):  
Marianne Lemoine-Goumard
Keyword(s):  
Cosmic Rays ◽  
Supernova Remnants ◽  
Gamma Ray ◽  
Galactic Cosmic Rays ◽  
Cherenkov Telescopes ◽  
Gamma Ray Astronomy ◽  
Morphological Studies ◽  
Shell Type ◽  
Order Of Magnitude ◽  
Gamma Ray Emission

AbstractIn the past few years, gamma-ray astronomy has entered a golden age. At TeV energies, only a handful of sources were known a decade ago, but the current generation of ground-based imaging atmospheric Cherenkov telescopes has increased this number to more than one hundred. At GeV energies, the Fermi Gamma-ray Space Telescope has increased the number of known sources by nearly an order of magnitude in its first 2 years of operation. The recent detection and unprecedented morphological studies of gamma-ray emission from shell-type supernova remnants is of great interest, as these analyses are directly linked to the long standing issue of the origin of the cosmic-rays. However, these detections still do not constitute a conclusive proof that supernova remnants accelerate the bulk of Galactic cosmic-rays, mainly due to the difficulty of disentangling the hadronic and leptonic contributions to the observed gamma-ray emission. In the following, I will review the most relevant results of gamma ray astronomy concerning supernova remnants (shell-type and middle-age interacting with molecular clouds).

Gamma-ray astronomy and the origin of cosmic-rays

1997 ◽  
Vol 40 (1-2) ◽  
pp. 31-50 ◽  
Author(s):  
V. A. Dogiel ◽  
V. Schönfelder
Keyword(s):  
Cosmic Rays ◽  
Gamma Ray ◽  
Gamma Ray Astronomy

Gamma-Ray Astronomy at the Highest Energies

1986 ◽  
Vol 6 (3) ◽  
pp. 280-289 ◽  
Author(s):  
R.J. Protheroe
Keyword(s):  
Cosmic Rays ◽  
Gamma Ray ◽  
High Energy ◽  
Ultra High Energy ◽  
Gamma Ray Astronomy ◽  
Air Shower ◽  
Very High Energy ◽  
Observational Techniques ◽  
Very High ◽  
Geographical Locations

AbstractIn 1983 ultra high energy γ-rays were detected from Cygnus X-3. This was of particular interest since it is the first identifiable source of cosmic rays. Since then, there has been an explosion of interest in the field with more than twenty air shower arrays planned or being used to search for γ-rays at energies above 1014 eV. Observational techniques for both very high energy and ultra high energy γ-ray astronomy are described and existing and proposed experiments reviewed with particular reference to their geographical locations. The results obtained so far are summarised together with some of the models proposed to explain them.

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