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CERN Accelerating science

CERN Document Server Znaleziono 15 rekordów  1 - 10następny  skocz do rekordu: Szukanie trwało 0.58 sekund. 
1.
Broadband Multi-wavelength Properties of M87 during the 2018 EHT Campaign including a Very High Energy Flaring Episode / Event Horizon Telescope Multi-wavelength Science Collaboration
The nearby elliptical galaxy M87 contains one of the only two supermassive black holes whose emission surrounding the event horizon has been imaged by the Event Horizon Telescope (EHT). [...]
arXiv:2404.17623 ; FERMILAB-PUB-24-0804-PPD.
- 46.
Fermilab Library Server - Fulltext - Fulltext
2.
Combined searches for dark matter in dwarf spheroidal galaxies observed with the MAGIC telescopes, including new data from Coma Berenices and Draco / MAGIC Collaboration
Milky Way dwarf spheroidal galaxies (dSphs) are among the best candidates to search for signals of dark matter annihilation with Imaging Atmospheric Cherenkov Telescopes, given their high mass-to-light ratios and the fact that they are free of astrophysical gamma-ray emitting sources. Since 2011, MAGIC has performed a multi-year observation program in search for Weakly Interacting Massive Particles (WIMPs) in dSphs. [...]
arXiv:2111.15009.- 2022-03 - 17 p. - Published in : Phys. Dark Univ. 35 (2022) 100912 Fulltext: PDF;
3.
Characterization of plastic scintillators equipped with SiPM for the next generation of satellites for the study of cosmic radiation / Serini, D (Bari U. ; INFN, Bari) ; De La Torre Luque, P (Bari U. ; INFN, Bari) ; Di Venere, L (INFN, Bari) ; Fusco, P (Bari U. ; INFN, Bari) ; Gargano, F (INFN, Bari) ; Giordano, F (Bari U. ; INFN, Bari) ; Loparco, F (Bari U. ; INFN, Bari) ; Loporchio, S (Bari U. ; INFN, Bari) ; Mazziotta, M N (INFN, Bari)
The next generation of satellite experiments for the studies of cosmic radiation will be equipped with plastic scintillators read-out by Silicon Photomultipliers (SiPMs), to be used as anti-coincidence detectors for gamma rays or for the identification of charged nuclei. For these applications, a high detection efficiency is required in order to ensure a high background rejection for the gamma-ray identification. [...]
2020 - 2 p. - Published in : Nuovo Cimento C 43 (2020) 100 Fulltext: PDF;
In : 18th Incontri di Fisica delle Alte Energie, Naples, Italy, 8 - 10 April 2019, pp.100
4.
MAGIC observations of the nearby short gamma-ray burst GRB 160821B / MAGIC Collaboration
The coincident detection of GW170817 in gravitational waves and electromagnetic radiation spanning the radio to MeV gamma-ray bands provided the first direct evidence that short gamma-ray bursts (GRBs) can originate from binary neutron star (BNS) mergers. On the other hand, the properties of short GRBs in high-energy gamma rays are still poorly constrained, with only $\sim$20 events detected in the GeV band, and none in the TeV band. [...]
arXiv:2012.07193.- 2021-02-16 - 11 p. - Published in : Astrophys. J. 908 (2021) 90 Fulltext: PDF;
5.
Study of the GeV to TeV morphology of the $\gamma$-Cygni SNR (G78.2+2.1) with MAGIC and Fermi-LAT / MAGIC Collaboration
Context. [...]
arXiv:2010.15854.
- 20 p.
Fulltext
6.
An intermittent extreme BL Lac: MWL study of 1ES 2344+514 in an enhanced state / MAGIC Collaboration
Extreme High-frequency BL~Lacs (EHBL) feature their synchrotron peak of the broadband spectral energy distribution (SED) at $\nu_{\rm s} \geq $10$^{17}$\,Hz. The BL~Lac object 1ES~2344+514 was included in the EHBL family because of its impressive shift of the synchrotron peak in 1996 [...]
arXiv:2006.06796.- 2020-08-11 - 17 p. - Published in : Mon. Not. R. Astron. Soc. 496 (2020) 3912 Fulltext: PDF;
7.
A search for dark matter in Triangulum II with the MAGIC telescopes / MAGIC Collaboration
We present the first results from very-high-energy observations of the dwarf spheroidal satellite candidate Triangulum II with the MAGIC telescopes from 62.4 hours of good-quality data taken between August 2016 and August 2017. We find no gamma-ray excess in the direction of Triangulum II, and upper limits on both the differential and integral gamma-ray flux are presented. [...]
arXiv:2003.05260.- 2020-05 - 14 p. - Published in : Phys. Dark Univ.: 28 (2020) , pp. 100529
Fulltext: PDF;
8.
Cosmic-ray interactions with the Sun using the FLUKA code / Mazziotta, M.N. (INFN, Bari) ; De La Torre Luque, P. (INFN, Bari ; U. Bari (main)) ; Di Venere, L. (INFN, Bari) ; Fassò, A. (PSI, SLS) ; Ferrari, A. (CERN) ; Loparco, F. (INFN, Bari ; U. Bari (main)) ; Sala, P.R. (INFN, Milan) ; Serini, D. (INFN, Bari ; U. Bari (main))
The interactions of cosmic rays with the solar atmosphere produce secondary particle which can reach the Earth. In this work we present a comprehensive calculation of the yields of secondary particles as gamma-rays, electrons, positrons, neutrons and neutrinos performed with the FLUKA code. [...]
arXiv:2001.09933.- 2020-04-09 - 13 p. - Published in : Phys. Rev. D 101 (2020) 083011 Fulltext: PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF;
9.
Bounds on Lorentz invariance violation from MAGIC observation of GRB 190114C / MAGIC Collaboration
On January 14, 2019, the Major Atmospheric Gamma Imaging Cherenkov telescopes detected GRB 190114C above 0.2 TeV, recording the most energetic photons ever observed from a gamma-ray burst. We use this unique observation to probe an energy dependence of the speed of light in vacuo for photons as predicted by several quantum gravity models. [...]
arXiv:2001.09728.- 2020-07-09 - 7 p. - Published in : Phys. Rev. Lett. 125 (2020) 021301 Fulltext: PDF;
10.
Unravelling the complex behavior of Mrk 421 with simultaneous X-ray and VHE observations during an extreme flaring activity in April 2013 / MAGIC Collaboration
We report on a multi-band variability and correlation study of the TeV blazar Mrk 421 during an exceptional flaring activity observed from 2013 April 11 to 2013 April 19. [...]
arXiv:2001.08678.
- 46 p.
Fulltext

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