scholarly journals Gamma-ray emission from globular clusters 2MS-GC01, IC 1257, FSR 1735, NGC 5904 and 6656

2015 ◽  
Vol 448 (4) ◽  
pp. 3215-3220 ◽  
Author(s):  
J. N. Zhou ◽  
P. F. Zhang ◽  
X. Y. Huang ◽  
X. Li ◽  
Y. F. Liang ◽  
...  
Keyword(s):  
Globular Clusters ◽  
Gamma Ray ◽  
Gamma Ray Emission

EGRET upper limits to the high-energy gamma-ray emission from the millisecond pulsars in nearby globular clusters

1994 ◽  
Vol 435 ◽  
pp. 218 ◽  
Author(s):  
P. F. Michelson ◽  
D. L. Bertsch ◽  
K. Brazier ◽  
J. Chiang ◽  
B. L. Dingus ◽  
...  
Keyword(s):  
Globular Clusters ◽  
Gamma Ray ◽  
High Energy ◽  
Millisecond Pulsars ◽  
High Energy Gamma ◽  
Upper Limits ◽  
Energy Gamma ◽  
Gamma Ray Emission

scholarly journals Gamma-ray Emission from Globular Clusters

2016 ◽  
Vol 33 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Pak-Hin T. Tam ◽  
Chung Y. Hui ◽  
Albert K. H. Kong
Keyword(s):  
Globular Clusters ◽  
Gamma Ray ◽  
Gamma Ray Emission

scholarly journals GAMMA-RAY EMISSION FROM THE GLOBULAR CLUSTERS LILLER 1, M80, NGC 6139, NGC 6541, NGC 6624, AND NGC 6752

2011 ◽  
Vol 729 (2) ◽  
pp. 90 ◽  
Author(s):  
P. H. T. Tam ◽  
A. K. H. Kong ◽  
C. Y. Hui ◽  
K. S. Cheng ◽  
C. Li ◽  
...  
Keyword(s):  
Globular Clusters ◽  
Gamma Ray ◽  
Gamma Ray Emission

scholarly journals Detection of gamma-ray emission from globular clusters M15, NGC 6397, 5904, 6218 and 6139 withFermi-LAT

2016 ◽  
Vol 459 (1) ◽  
pp. 99-107 ◽  
Author(s):  
P. F. Zhang ◽  
Y. L. Xin ◽  
L. Fu ◽  
J. N. Zhou ◽  
J. Z. Yan ◽  
...  
Keyword(s):  
Globular Clusters ◽  
Gamma Ray ◽  
Gamma Ray Emission

A Combined Model for the X‐Ray to Gamma‐Ray Emission of Cygnus X‐1

1998 ◽  
Vol 502 (1) ◽  
pp. 428-436 ◽  
Author(s):  
Igor V. Moskalenko ◽  
Werner Collmar ◽  
Volker Schonfelder
Keyword(s):  
Gamma Ray ◽  
Combined Model ◽  
X Ray ◽  
Gamma Ray Emission

Standardization of 223Ra by live-time anticoincidence counting and gamma-ray emission determination

2021 ◽  
pp. 109559
Author(s):  
R.F.P. Simões ◽  
C.J. da Silva ◽  
R.L. da Silva ◽  
L.V. de Sá ◽  
R. Poledna ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Emission ◽  
Anticoincidence Counting

scholarly journals Radio jets and gamma-ray emission in radio-silent narrow-line Seyfert 1 galaxies

2018 ◽  
Vol 614 ◽  
pp. L1 ◽  
Author(s):  
A. Lähteenmäki ◽  
E. Järvelä ◽  
V. Ramakrishnan ◽  
M. Tornikoski ◽  
J. Tammi ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Supernova Remnants ◽  
Gamma Ray ◽  
Spiral Galaxies ◽  
Narrow Line ◽  
Radio Jets ◽  
Relativistic Jet ◽  
Gamma Ray Emission

We have detected six narrow-line Seyfert 1 (NLS1) galaxies at 37 GHz that were previously classified as radio silent and two that were classified as radio quiet. These detections reveal the presumption that NLS1 galaxies labelled radio quiet or radio silent and hosted by spiral galaxies are unable to launch jets to be incorrect. The detections are a plausible indicator of the presence of a powerful, most likely relativistic jet because this intensity of emission at 37 GHz cannot be explained by, for example, radiation from supernova remnants. Additionally, one of the detected NLS1 galaxies is a newly discovered source of gamma rays and three others are candidates for future detections.

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