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Related papers: Astrophysics with the AMS-02 experiment

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Observations of cosmic rays are a sensitive probe of dark matter annihilation in our Galaxy. In this article we present an analysis of the AMS-02 antiproton data, reducing cosmic-ray propagation uncertainties by fitting at the same time…

High Energy Astrophysical Phenomena · Physics 2018-04-23 Alessandro Cuoco , Jan Heisig , Michael Korsmeier , Michael Krämer

The AMS-02 experiment measured several secondary-to-primary ratios enabling a detailed study of Galactic cosmic-ray transport. We constrain previously derived benchmark scenarios (based on AMS-02 B/C data only) using other…

High Energy Astrophysical Phenomena · Physics 2020-07-22 Nathanael Weinrich , Yoann Génolini , Mathieu Boudaud , Laurent Derome , David Maurin

Primary and atmospheric cosmic-ray spectra were precisely measured with the BESS-TeV spectrometer. The spectrometer was upgraded from BESS-98 to achieve seven times higher resolution in momentum measurement. We report absolute fluxes of…

We present a proof of concept on the coupling of radio astronomical receivers and spectrometers with chemical reactorsand the performances of the resulting setup for spectroscopy and chemical simulations in laboratory astrophysics. Several…

The measurement of light isotope components in cosmic rays (CR) like3He,2H (D)and6Li are some of the most valuable tools for understanding the propagation of CR in the galaxy and constrain the models that describe it. In this work a new…

High Energy Physics - Experiment · Physics 2019-10-17 F. Dimiccoli , R. Battiston , K. Kanishchev , F. Nozzoli , P. Zuccon

The recently reported positron fraction up to $\sim 350$ GeV by AMS-02 seems to have tension with the total electron/positron spectra detected by Fermi and HESS, for either pulsar or dark matter annihilation/decay scenario as the primary…

High Energy Astrophysical Phenomena · Physics 2014-05-15 Qiang Yuan , Xiao-Jun Bi

Recent measurements of cosmic ray electron energy spectra suggest that above 10 GeV there may be deviations from a single power law spectrum. There are hints (ATIC) for a bump occurring between 100 GeV and 1TeV, meaning that there might be…

High Energy Astrophysical Phenomena · Physics 2017-08-23 Andrea Tartari , Massimo Gervasi , Giorgio Sironi , Mario Zannoni , Sebastiano Spinelli

The design of the new space-based gamma-ray telescope GAMMA-400 is presented. GAMMA-400 is optimized for the energy 100 GeV with the best parameters: the angular resolution ~0.01 deg, the energy resolution ~1%, and the proton rejection…

The most complete catalogue of nearby stars (Gliese and Jarheiss, 1991) has been used to search for the stars whose photospheric thermal emission can be detected by the future millimeter array ALMA. We found that 446 nearby stars with…

Astrophysics · Physics 2007-05-23 Jean-Francois Lestrade

We compute cosmic ray (CR) nuclei, proton, antiproton, electron and positron spectra below 1 TeV at Earth by means of a detailed transport description in the galaxy and in the solar system. CR spectra below 10 GeV are strongly modified by…

High Energy Astrophysical Phenomena · Physics 2013-02-21 Luca Maccione

AMS-02 has reached the sensitivity to probe canonical thermal WIMPs by their annihilation into antiprotons. Due to the high precision of the data, uncertainties in the astrophysical background have become the most limiting factor for…

High Energy Astrophysical Phenomena · Physics 2018-02-14 Annika Reinert , Martin Wolfgang Winkler

There is convincing observational evidence for an increasing cosmic-ray positron-to-electron ratio at energies larger than $\sim 10$~GeV, at odds with expectations from secondary positron production. The most recent AMS-02 data exhibit an…

High Energy Physics - Phenomenology · Physics 2019-03-21 Stefano Profumo , Farinaldo Queiroz , Clarissa Siqueira

I review latest results from AMS on electrons and positrons in primary cosmic rays in the GeV to TeV energy range. Separate fluxes for electrons and positrons as well as their sum are presented. Neither of the fluxes is compatible with a…

High Energy Physics - Experiment · Physics 2014-12-09 Martin Pohl

Cosmic ray (CR) physics has entered a precision-driven era. With the latest AMS-02 nuclei data (boron-to-carbon ratio, proton flux, helium flux and antiproton-to-proton ratio), we perform a global fitting and constrain the primary source…

High Energy Astrophysical Phenomena · Physics 2018-01-31 Jia-Shu Niu , Tianjun Li

Research in cosmic rays is now nearly a century old, but most of the fundamental questions in this field remain unanswered, on the other hand the perspectives of future studies in the next decade are very bright. New detectors will provide…

Astrophysics · Physics 2009-11-07 Paolo Lipari

We propose a future mission concept, the MeV Astrophysical Spectroscopic Surveyor (MASS), which is a large area Compton telescope using 3D position sensitive cadmium zinc telluride (CZT) detectors optimized for emission line detection. The…

The AMS-02 experiment has recently released data which confirms a rise in the cosmic-ray positron fraction as a function of energy up to approximately 350 GeV. Over the past decade, attempts to interpret this positron excess in terms of…

High Energy Physics - Phenomenology · Physics 2013-11-13 Keith R. Dienes , Jason Kumar , Brooks Thomas

The Atmosphere-Space Interactions Monitor (ASIM) is an instrument suite on the International Space Station (ISS) for measurements of lightning, Transient Luminous Events (TLEs) and Terrestrial Gamma-ray Flashes (TGFs). Developed in the…

The Fermi Gamma-Ray Space Telescope was launched in June 2008 and the onboard Large Area Telescope (LAT) has been collecting data since August of that same year. The LAT is currently being used to study a wide range of science topics in…

High Energy Astrophysical Phenomena · Physics 2019-08-13 P. D. Smith , R. E. Hughes , B. L. Winer , T. W. Wood
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