scholarly journals Measurement of the cosmic ray Moon shadow with the ANTARES detector.

2019 ◽  
Vol 209 ◽  
pp. 01037
Author(s):  
Matteo Sanguineti ◽  
Tommaso Chiarusi
Keyword(s):  
Cosmic Rays ◽  
Mediterranean Sea ◽  
Angular Resolution ◽  
Cosmic Ray ◽  
Muon Flux ◽  
Neutrino Telescope ◽  
The Moon ◽  
Calibration Source ◽  
Pointing Accuracy ◽  
Atmospheric Muon

The ANTARES detector is the largest neutrino telescope currently in operation in Mediterranean sea. One of the main goals of the ANTARES telescope is the search for point-like neutrino sources, so both the pointing accuracy and the angular resolution of the detector need a proper direct estimation. One possibility to evaluate the pointing performance of the detector is to analyse the shadow of the Moon, i.e. the deficit in the atmospheric muon flux in the direction of the Moon induced by absorption of cosmic rays. The ANTARES data taken between 2007 and 2016 shows aMoon shadow evidence of 3.5σ significance. This is the first measurement of the ANTARES angular resolution and absolute pointing for atmospheric muons using a celestial calibration source. The presented results confirm the good pointing performance of the detector as well as the predicted angular resolution.

scholarly journals Moon shadow in ANTARES

2019 ◽  
Vol 207 ◽  
pp. 07007
Author(s):  
Tommaso Chiarusi ◽  
Matteo Sanguineti
Keyword(s):  
Cosmic Rays ◽  
Mediterranean Sea ◽  
Angular Resolution ◽  
Neutrino Telescope ◽  
Cherenkov Detector ◽  
The Moon ◽  
Calibration Source ◽  
Pointing Accuracy ◽  
Proper Estimation ◽  
Primary Cosmic Rays

The ANTARES neutrino telescope is the largest Cherenkov detector currently in operation in Mediterranean sea. The search for point-like neutrino sources is one of the telescope goals. For this reason, both the detector angular resolution and the pointing accuracy need a proper estimation. Measuring the deficit of the atmospheric muons in the direction of the Moon induced by the absorption of primary cosmic rays, the so called Moon shadow, allows to evaluate the pointing performance of the telescope. In this contribution we show the result of the analysis of the data taken between 2007 and 2016. The Moon shadow is detected with 3.5σ significance. This is the first measurement of the ANTARES angular resolution for atmospheric muons and its absolute pointing using a celestial calibration source. The presented results confirm the good pointing performance of the detector as well as the expected angular resolution.

scholarly journals Measurement of the atmospheric muon flux with a 4GeV threshold in the ANTARES neutrino telescope

2010 ◽  
Vol 33 (2) ◽  
pp. 86-90 ◽  
Author(s):  
J.A. Aguilar ◽  
I. Al Samarai ◽  
A. Albert ◽  
M. Anghinolfi ◽  
G. Anton ◽  
...  
Keyword(s):  
Muon Flux ◽  
Neutrino Telescope ◽  
Atmospheric Muon

scholarly journals Applications of muon absorption radiography to the fields of archaeology and civil engineering

2018 ◽  
Vol 377 (2137) ◽  
pp. 20180057 ◽  
Author(s):  
G. Saracino ◽  
F. Ambrosino ◽  
L. Bonechi ◽  
L. Cimmino ◽  
R. D'Alessandro ◽  
...  
Keyword(s):  
Cosmic Rays ◽  
Density Distribution ◽  
Physical Process ◽  
Civil Engineering ◽  
Imaging Technique ◽  
Mass Density ◽  
Cosmic Ray ◽  
Muon Flux ◽  
Particle Detector ◽  
Muon Radiography

Muon radiography, also known as muography, is an imaging technique that provides information on the mass density distribution inside large objects. Muons are naturally produced in the interactions of cosmic rays in the Earth's atmosphere. The physical process exploited by muography is the attenuation of the muon flux, that depends on the thickness and density of matter that muons cross in the course of their trajectory. A particle detector with tracking capability allows the measurement of the muons flux as a function of the muon direction. The comparison of the measured muon flux with the expected one gives information on the distribution of the density of matter, in particular, on the presence of cavities. In this article, the measurement performed at Mt. Echia in Naples (Saracino 2017 Sci. Rep. 7 , 1181. ( doi:10.1038/s41598-017-01277-3 )), will be discussed as a practical example of the possible application of muography in archaeology and civil engineering. This article is part of the Theo Murphy meeting issue ‘Cosmic-ray muography’.

scholarly journals Perturbations to aquatic photosynthesis due to high-energy cosmic ray induced muon flux in the extragalactic shock model

2013 ◽  
Vol 12 (4) ◽  
pp. 326-330 ◽  
Author(s):  
Lien Rodriguez ◽  
Rolando Cardenas ◽  
Oscar Rodriguez
Keyword(s):  
Mathematical Model ◽  
Cosmic Rays ◽  
Primary Productivity ◽  
Cosmic Ray ◽  
High Energy ◽  
Muon Flux ◽  
Considerable Reduction ◽  
Shock Model ◽  
High Energy Cosmic Rays

AbstractWe modify a mathematical model of photosynthesis to quantify the perturbations that high energy muons could make on aquatic primary productivity. Then, we apply this in the context of the extragalactic shock model, according to which Earth receives an enhanced dose of high-energy cosmic rays when it is at the galactic north. We obtain considerable reduction in the photosynthesis rates, consistent with potential drops in biodiversity.

A measurement of the cosmic-ray muon flux with a module of the NESTOR neutrino telescope

2005 ◽  
Vol 23 (4) ◽  
pp. 377-392 ◽  
Author(s):  
G AGGOURAS ◽  
E ANASSONTZIS ◽  
A BALL ◽  
G BOURLIS ◽  
W CHINOWSKY ◽  
...  
Keyword(s):  
Cosmic Ray ◽  
Muon Flux ◽  
Neutrino Telescope

scholarly journals ICECUBE OBSERVATORY: NEUTRINOS AND THE ORIGIN OF COSMIC RAYS

2013 ◽  
Vol 53 (A) ◽  
pp. 770-775
Author(s):  
Paolo Desiati
Keyword(s):  
Cosmic Rays ◽  
Cosmic Ray ◽  
High Energy ◽  
Neutrino Telescope ◽  
Current Status ◽  
Galactic Sources ◽  
Astrophysical Neutrino

The completed IceCube Observatory, the first km<sup>3</sup> neutrino telescope, is already providing the most stringent limits on the flux of high energy cosmic neutrinos from point-like and diffuse galactic and extra-galactic sources. The non-detection of extra-terrestrial neutrinos has important consequences on the origin of the cosmic rays. Here the current status of astrophysical neutrino searches, and of the observation of a persistent cosmic ray anisotropy above 100TeV, are reviewed.

scholarly journals The cosmic ray shadow of the Moon observed with the ANTARES neutrino telescope

2018 ◽  
Vol 78 (12) ◽  
Author(s):  
A. Albert ◽  
M. André ◽  
M. Anghinolfi ◽  
G. Anton ◽  
M. Ardid ◽  
...  
Keyword(s):  
Cosmic Ray ◽  
Neutrino Telescope ◽  
The Moon

NEUTRINO ASTRONOMY AND COSMIC RAYS AT THE SOUTH POLE: LATEST RESULTS FROM AMANDA AND PERSPECTIVES FOR ICECUBE

2005 ◽  
Vol 20 (29) ◽  
pp. 6919-6923
Author(s):  
PAOLO DESIATI ◽  
A. ACHTERBERG ◽  
M. ACKERMANN ◽  
J. AHRENS ◽  
H. ALBRECHT ◽  
...  
Keyword(s):  
Cosmic Rays ◽  
Cosmic Ray ◽  
Neutrino Telescope ◽  
Point Sources ◽  
South Pole ◽  
The South ◽  
Photomultiplier Tubes ◽  
Array Configuration ◽  
Neutrino Astronomy ◽  
Final Array

The AMANDA neutrino telescope has been in operation at the South Pole since 1996. The present final array configuration, operational since 2000, consists of 677 photomultiplier tubes arranged in 19 strings, buried at depths between 1500 and 2000 m in the ice. The most recent results on a multi-year search for point sources of neutrinos will be shown. The study of events triggered in coincidence with the surface array SPASE and AMANDA provided a result on cosmic ray composition. Expected improvements from IceCube/IceTop will also be discussed.

scholarly journals The Origin and Dynamical Effects of the Magnetic Fields and Cosmic Rays in the Disk of the Galaxy

1970 ◽  
Vol 39 ◽  
pp. 168-183
Author(s):  
E. N. Parker
Keyword(s):  
Magnetic Field ◽  
Cosmic Rays ◽  
Magnetic Fields ◽  
Dynamical Behavior ◽  
Cosmic Ray ◽  
Interested Reader ◽  
Written Text ◽  
The Galaxy ◽  
Basic Ideas ◽  
The Magnetic Field

The topic of this presentation is the origin and dynamical behavior of the magnetic field and cosmic-ray gas in the disk of the Galaxy. In the space available I can do no more than mention the ideas that have been developed, with but little explanation and discussion. To make up for this inadequacy I have tried to give a complete list of references in the written text, so that the interested reader can pursue the points in depth (in particular see the review articles Parker, 1968a, 1969a, 1970). My purpose here is twofold, to outline for you the calculations and ideas that have developed thus far, and to indicate the uncertainties that remain. The basic ideas are sound, I think, but, when we come to the details, there are so many theoretical alternatives that need yet to be explored and so much that is not yet made clear by observations.

Sign in / Sign up

Export Citation Format

Share Document