Nuclear composition of 1-to 20-PeV primary cosmic rays according to lateral features of the electron-photon component of all extensive air showers and of extensive air showers accompanying high-energy gamma rays and hadrons in x-ray emulsion chambers at the Tien Shan level

2003 ◽  
Vol 66 (5) ◽  
pp. 847-853
Author(s):  
N. M. Nesterova ◽  
V. P. Pavlyuchenko ◽  
A. P. Chubenko ◽  
S. B. Shaulov
Keyword(s):  
Gamma Rays ◽  
High Energy ◽  
Extensive Air Showers ◽  
Tien Shan ◽  
Air Showers ◽  
X Ray ◽  
Nuclear Composition ◽  
Energy Gamma ◽  
Electron Photon ◽  
Photon Component

Low-energy muons in extensive air showers at 800 g cm−2

1968 ◽  
Vol 46 (10) ◽  
pp. S131-S135 ◽  
Author(s):  
B. K. Chatterjee ◽  
N. V. Gopalakrishnan ◽  
G. T. Murthy ◽  
S. Naranan ◽  
B. V. Sreekantan ◽  
...  
Keyword(s):  
Size Range ◽  
Low Energy ◽  
Extensive Air Showers ◽  
Air Showers ◽  
Average Total Number ◽  
The Right ◽  
Electron Photon ◽  
Photon Component ◽  
Lateral Structure ◽  
Right Ascension

The following results on the low-energy (> 0.6 GeV and > 1.0 GeV) muons in air showers of size 105 to 2 × 107 at Ootacamund (800 g cm−2) are obtained: (1) The average total number of muons [Formula: see text] varies as Ne0.32 ± 0.2 for 105 < Ne < 106, and as Ne0.8 ± 0.15for 106 < Ne < 2 × 107. (2) In showers showing flat electron lateral structure, the [Formula: see text] variation with Ne is similar to (1). However, in steep showers, [Formula: see text] varies as Ne0.75 ± 0.15 in the whole size range 105 to 2 × 107. (3) "Muon-rich" showers of size < 106 have less energy in the electron–photon component compared to "normal" showers. No such difference is found for showers of size > 106. (4) There is a slight indication of a deficiency of muon-rich showers having a flat lateral distribution of electrons in the right ascension interval 15–21 hours for showers of size 106–107. A similar deficit of showers was observed by the Tokyo group for muon-rich showers in the same RA interval.

Very high energy gamma rays from x-ray binary pulsars

1990 ◽  
Vol 16 (12) ◽  
pp. 1773-1803 ◽  
Author(s):  
P M Chadwick ◽  
T J L McComb ◽  
K E Turver
Keyword(s):  
Gamma Rays ◽  
High Energy ◽  
X Ray ◽  
Binary Pulsars ◽  
High Energy Gamma ◽  
Very High Energy ◽  
Energy Gamma ◽  
Very High

scholarly journals High-energy gamma-rays from GRB X-ray flares

2007 ◽  
Author(s):  
X. Y. Wang ◽  
Z. Li ◽  
P. Mészáros
Keyword(s):  
Gamma Rays ◽  
High Energy ◽  
X Ray ◽  
High Energy Gamma ◽  
Energy Gamma

scholarly journals Search for High‐Energy Gamma Rays from an X‐Ray–selected Blazar Sample

2003 ◽  
Vol 599 (2) ◽  
pp. 909-917 ◽  
Author(s):  
I. de la Calle Perez ◽  
I. H. Bond ◽  
P. J. Boyle ◽  
S. M. Bradbury ◽  
J. H. Buckley ◽  
...  
Keyword(s):  
Gamma Rays ◽  
High Energy ◽  
X Ray ◽  
High Energy Gamma ◽  
Energy Gamma

Observations on extensive air showers VII. The lateral distribution of energy in the electron-photon component

1958 ◽  
Vol 3 (32) ◽  
pp. 826-830 ◽  
Author(s):  
N. A. Porter ◽  
T. E. Cranshaw ◽  
J. F. De Beer ◽  
A. G. Parham ◽  
A. C. Sherwood
Keyword(s):  
Lateral Distribution ◽  
Extensive Air Showers ◽  
Air Showers ◽  
Electron Photon ◽  
Photon Component

scholarly journals Possible X-Ray Counterparts to Gamma-Ray Bursts, GRB930131 and GRB940217

1998 ◽  
Vol 188 ◽  
pp. 459-460
Author(s):  
R. Shibata ◽  
T. Murakami ◽  
Y. Ueda ◽  
A. Yoshida ◽  
F. Tokanai ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Gamma Ray ◽  
High Energy ◽  
Small Error ◽  
Gamma Ray Bursts ◽  
X Ray ◽  
High Energy Gamma ◽  
Energy Gamma

We made a search of quiescent X-ray counterparts of two Gamma-Ray Bursts (GRBs), GRB930131 and GRB940217. These GRBs were detected with BATSE, EGRET, COMPTEL on board CGRO together with the GRB detector on Ulysses spacecraft, then they were localized in small error regions. These observations showed that the bursts were remarkably bright accompanying delayed high energy gamma-rays. ASCA observations have found a single X-ray source for each GRB on the possible location determined with the above instruments.

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