scholarly journals New cosmic ray observations at Syowa Station in the Antarctic for space weather study

2021 ◽  
Vol 11 ◽  
pp. 31
Author(s):  
Chihiro Kato ◽  
Wataru Kihara ◽  
Yukino Ko ◽  
Akira Kadokura ◽  
Ryuho Kataoka ◽  
...  
Keyword(s):  
Space Weather ◽  
Cosmic Ray ◽  
Atmospheric Temperature ◽  
Time Data ◽  
Successful Operation ◽  
Syowa Station ◽  
Cosmic Ray Interactions ◽  
Space Weather Event ◽  
The Antarctic ◽  
Insight Into

Muon detectors and neutron monitors were recently installed at Syowa Station, in the Antarctic, to observe different types of secondary particles resulting from cosmic ray interactions simultaneously from the same location. Continuing observations will give new insight into the response of muon detectors to atmospheric and geomagnetic effects. Operation began in February, 2018 and the system has been stable with a duty-cycle exceeding 94%. Muon data shows a clear seasonal variation, which is expected from the atmospheric temperature effect. We verified successful operation by showing that the muon and neutron data are consistent with those from other locations by comparing intensity variations during a space weather event. We have established a web page to make real time data available with interactive graphics (http://polaris.nipr.ac.jp/cosmicrays/).

scholarly journals A new cosmic ray observation at Syowa Station in the antarctic

2021 ◽  
pp. 155-159
Author(s):  
Chihiro Kato ◽  
Wataru Kihara ◽  
Yukino Ko ◽  
Kazuoki Munakata ◽  
Shin-ichi Uchida ◽  
...  
Keyword(s):  
Cosmic Ray ◽  
Stable Operation ◽  
Syowa Station ◽  
Operation Rate ◽  
The Antarctic

A set of Cosmic Ray detectors was newly installed in Syowa Station, in the Antarctic, to observe CR neutrons and muons simultaneously at the same location. The observing system has started working in February 2018 and is in stable operation with a high operation rate, >90%. We describe the new systems and show its stability.

scholarly journals A combined analysis of geomagnetic data and cosmic ray secondaries for the September 2017 space weather event studies

2019 ◽  
Vol 19 (4) ◽  
pp. 1-10 ◽  
Author(s):  
Roman Sidorov ◽  
Anatoly Soloviev ◽  
Alexei Gvishiani ◽  
Viktor Getmanov ◽  
Mioara Mandea ◽  
...  
Keyword(s):  
Space Weather ◽  
Cosmic Ray ◽  
Event Studies ◽  
Weather Event ◽  
Combined Analysis ◽  
Geomagnetic Data ◽  
Space Weather Event

Cosmic ray variations and space weather

2010 ◽  
Vol 180 (5) ◽  
pp. 519 ◽  
Author(s):  
L.I. Dorman
Keyword(s):  
Space Weather ◽  
Cosmic Ray

scholarly journals Gamma-ray astrophysics in the MeV range

2021 ◽  
Author(s):  
Alessandro De Angelis ◽  
Vincent Tatischeff ◽  
Andrea Argan ◽  
Søren Brandt ◽  
Andrea Bulgarelli ◽  
...  
Keyword(s):  
High Efficiency ◽  
Gamma Ray ◽  
Earth Science ◽  
Technological Development ◽  
Cosmic Ray ◽  
Space Mission ◽  
Compact Objects ◽  
Medium Size ◽  
Cosmic Ray Interactions ◽  
Silicon Microstrip Detectors

AbstractThe energy range between about 100 keV and 1 GeV is of interest for a vast class of astrophysical topics. In particular, (1) it is the missing ingredient for understanding extreme processes in the multi-messenger era; (2) it allows localizing cosmic-ray interactions with background material and radiation in the Universe, and spotting the reprocessing of these particles; (3) last but not least, gamma-ray emission lines trace the formation of elements in the Galaxy and beyond. In addition, studying the still largely unexplored MeV domain of astronomy would provide for a rich observatory science, including the study of compact objects, solar- and Earth-science, as well as fundamental physics. The technological development of silicon microstrip detectors makes it possible now to detect MeV photons in space with high efficiency and low background. During the last decade, a concept of detector (“ASTROGAM”) has been proposed to fulfil these goals, based on a silicon hodoscope, a 3D position-sensitive calorimeter, and an anticoincidence detector. In this paper we stress the importance of a medium size (M-class) space mission, dubbed “ASTROMEV”, to fulfil these objectives.

scholarly journals Ice thinning on nunataks during the glacial to interglacial transition in the Antarctic Peninsula region according to Cosmic-Ray Exposure dating: Evidence and uncertainties

2021 ◽  
Vol 264 ◽  
pp. 107029
Author(s):  
José M. Fernández-Fernández ◽  
Marc Oliva ◽  
David Palacios ◽  
Julia Garcia-Oteyza ◽  
Francisco J. Navarro ◽  
...  
Keyword(s):  
Antarctic Peninsula ◽  
Cosmic Ray ◽  
Exposure Dating ◽  
The Antarctic

scholarly journals High energy cosmic ray interactions and UHECR composition problem

2019 ◽  
Vol 210 ◽  
pp. 02001
Author(s):  
Sergey Ostapchenko
Keyword(s):  
Experimental Data ◽  
Monte Carlo ◽  
Cosmic Rays ◽  
Cosmic Ray ◽  
High Energy ◽  
Ultra High Energy ◽  
Hadronic Interactions ◽  
High Energy Cosmic Rays ◽  
Cosmic Ray Interactions ◽  
Composition Problem

The differences between contemporary Monte Carlo generators of high energy hadronic interactions are discussed and their impact on the interpretation of experimental data on ultra-high energy cosmic rays (UHECRs) is studied. Key directions for further model improvements are outlined. The prospect for a coherent interpretation of the data in terms of the UHECR composition is investigated.

scholarly journals Dark metabolism: a molecular insight into how the Antarctic sea‐ice diatom Fragilariopsis cylindrus survives long‐term darkness

2019 ◽  
Vol 223 (2) ◽  
pp. 675-691 ◽  
Author(s):  
Fraser Kennedy ◽  
Andrew Martin ◽  
John P. Bowman ◽  
Richard Wilson ◽  
Andrew McMinn
Keyword(s):  
Sea Ice ◽  
Antarctic Sea Ice ◽  
Fragilariopsis Cylindrus ◽  
Dark Metabolism ◽  
The Antarctic ◽  
Insight Into

Cosmic-Ray Interactions at1011-1013eV

1971 ◽  
Vol 4 (1) ◽  
pp. 37-45 ◽  
Author(s):  
E. W. Cowan ◽  
K. Matthews
Keyword(s):  
Cosmic Ray ◽  
Cosmic Ray Interactions
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