GRIS observations of Al-26 gamma-ray line emission from two points in the Galactic plane

1991 ◽  
Vol 375 ◽  
pp. L9 ◽  
Author(s):  
B. J. Teegarden ◽  
S. D. Barthelmy ◽  
N. Gehrels ◽  
J. Tueller ◽  
M. Leventhal ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Galactic Plane ◽  
Line Emission

COMPTEL measurements of 1.809 MeV gamma-ray line emission from the Galactic plane

1993 ◽  
Author(s):  
R. Diehl ◽  
W. Collmar ◽  
G. Lichti ◽  
V. Schönfelder ◽  
A. Strong ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Galactic Plane ◽  
Line Emission

GRIS observations of 26Al gamma-ray line emission from the galactic plane

1991 ◽  
Author(s):  
B. J. Teegarden ◽  
S. D. Barthelmy ◽  
N. Gehrels ◽  
J. Tueller ◽  
Marvin Leventhal ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Galactic Plane ◽  
Line Emission

scholarly journals Neutrino Astronomy with IceCube

2016 ◽  
Vol 12 (S324) ◽  
pp. 322-329
Author(s):  
Kevin J. Meagher
Keyword(s):  
Real Time ◽  
Gamma Ray ◽  
Galactic Plane ◽  
Galactic Nuclei ◽  
High Energy ◽  
Glacial Ice ◽  
Astrophysical Neutrinos ◽  
Charged Secondary ◽  
Neutrino Astronomy ◽  
The Antarctic

AbstractThe IceCube Neutrino Observatory is a cubic kilometer neutrino telescope located at the Geographic South Pole. Cherenkov radiation emitted by charged secondary particles from neutrino interactions is observed by IceCube using an array of 5160 photomultiplier tubes embedded between a depth of 1.5 km to 2.5 km in the Antarctic glacial ice. The detection of astrophysical neutrinos is a primary goal of IceCube and has now been realized with the discovery of a diffuse, high-energy flux consisting of neutrino events from tens of TeV up to several PeV. Many analyses have been performed to identify the source of these neutrinos: correlations with active galactic nuclei, gamma-ray bursts, and the galactic plane. IceCube also conducts multi-messenger campaigns to alert other observatories of possible neutrino transients in real-time. However, the source of these neutrinos remains elusive as no corresponding electromagnetic counterparts have been identified. This proceeding will give an overview of the detection principles of IceCube, the properties of the observed astrophysical neutrinos, the search for corresponding sources (including real-time searches), and plans for a next-generation neutrino detector, IceCube–Gen2.

The gamma-ray line emission of Orion

1998 ◽  
Author(s):  
Michel Cassé ◽  
Elisabeth Vangioni-Flam ◽  
Sean T. Scully
Keyword(s):  
Gamma Ray ◽  
Line Emission

scholarly journals LIGHT SUPERCONDUCTING STRINGS IN THE GALAXY

2007 ◽  
Vol 16 (12b) ◽  
pp. 2399-2405 ◽  
Author(s):  
FRANCESC FERRER ◽  
TANMAY VACHASPATI
Keyword(s):  
Magnetic Field ◽  
Spatial Distribution ◽  
Particle Physics ◽  
Milky Way ◽  
Gamma Ray ◽  
Galactic Center ◽  
Line Emission ◽  
Galactic Magnetic Field ◽  
The Galaxy ◽  
Intense Source

Observations of the Milky Way by the SPI/INTEGRAL satellite have confirmed the presence of a strong 511 keV gamma ray line emission from the bulge, which requires an intense source of positrons in the galactic center. These observations are hard to account for by conventional astrophysical scenarios, whereas other proposals, such as light DM, face stringent constraints from the diffuse gamma ray background. Here we suggest that light superconducting strings could be the source of the observed 511 keV emission. The associated particle physics, at the ~ 1 TeV scale, is within the reach of planned accelerator experiments, while the distinguishing spatial distribution, proportional to the galactic magnetic field, could be mapped by SPI or by future, more sensitive satellite missions.

Population statistics study of radio and gamma-ray pulsars in the Galactic plane

2007 ◽  
pp. 245-251
Author(s):  
Peter L. Gonthier ◽  
Sarah A. Story ◽  
Brian D. Clow ◽  
Alice K. Harding
Keyword(s):  
Gamma Ray ◽  
Galactic Plane ◽  
Population Statistics

scholarly journals De-Excitation Gamma-ray Line Emission from the Galactic Center

2010 ◽  
Author(s):  
Dmitry Chernyshov ◽  
V. A. Dogiel ◽  
V. Tatischeff ◽  
Kwong-Sang Cheng ◽  
Chung-Ming Ko ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Galactic Center ◽  
Line Emission
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