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Ricap16 6th Roma International Conference on Astroparticle Physics

Jun 21 – 24, 2016
Roma
Europe/Rome timezone

Session

g-rays

Jun 22, 2016, 2:30 PM
Roma

Roma

Presentation materials

There are no materials yet.

  1. 183. e-ASTROGAM A Future space based gamma-ray observatory in a new energy window
    Vincent Tatischeff
    6/22/16, 2:30 PM
    e-ASTROGAM is a gamma-ray observatory to be proposed as the M5 Medium-size mission of the European Space Agency. It is dedicated to the observation of the Universe with unprecedented sensitivity in the energy range 0.3-100 MeV, extending up to GeV energies, together with a groundbreaking polarization capability. e-ASTROGAM will operate as an open astronomical observatory, with a core science...
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  2. 257. The Science Case for a future gamma-ray missions in the 300 KeV- 100 MeV domain
    Prof. Peter von Ballmoos (Institut de Recherche en Astrophysique et Planétologie, Toulouse)
    6/22/16, 2:55 PM
  3. 52. Fermi bubbles: what do we know about them and where do they come from?
    Dmitry Malyshev (ECAP)
    6/22/16, 3:20 PM
    The Fermi bubbles are two gamma-ray lobes extending up to 55 degrees above and below the Galactic center. The Fermi bubbles are unique in that, in contrast to lobes in other galaxies, they were discovered in gamma rays, rather than radio waves or X rays. In the talk I will overview the observations of the Fermi bubbles in gamma rays, X rays, UV and radio waves. I will present a recent analysis...
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  4. 53. PeVatron in the Galact Center
    Dr Emmanuel Moulin (CEA Saclay)
    6/22/16, 3:45 PM
    The Galactic Centre region has been observed by the High Energy Stereoscopic System (H.E.S.S.) array of ground-based Cherenkov telescopes since 2004 leading to the detection of the very-high-energy (VHE, E > 100 GeV) gamma-ray source HESS J1745−290 spatially coincident with the supermassive black hole Sgr A*. Diffuse TeV gamma-ray emission has been detected along the Galactic plane, most...
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  5. 226. Anomalies in the gamma-ray diffuse emission of the Galaxy and implications for the interpretation of IceCube results
    Dario Grasso (PI)
    6/22/16, 4:10 PM
    Several independent analyzes of Fermi-LAT results found evidences of a spatial dependence of the cosmic ray (CR) proton spectral index which is not accounted for in conventional models of CR transport in the Galaxy. Moreover, several CR experiments have established the presence of a CR spectral hardening above few hundred GeV. We show that these results may have a relevant impact on the...
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  6. 202. Limits on Lorentz invariance violation at the Planck energy scale from H.E.S.S. spectral analysis of the blazar Mrk 501
    Mr Matthias Lorentz (Irfu, CEA Saclay)
    6/23/16, 5:00 PM
    ome extensions to the Standard Model lead to the introduction of Lorentz symmetry breaking terms, expected to induce deviations from Lorentz symmetry around the Planck scale. A parameterization of Lorentz invariance violating (LIV) effects can be introduced by adding an effective term to the photon dispersion relation. This affects the kinematics of electron-positron pair creation by TeV gamma...
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  7. 204. HAWC upgrade with a sparse outrigger array
    Mr Vikas Joshi (Max Planck Institute for Nuclear Physics, Heidelberg, Germany)
    6/23/16, 5:20 PM
    The High Altitude Water Cherenkov (HAWC) high-energy gamma-ray observatory has recently been completed near the Sierra Negra in central Mexico. HAWC consists of 300 Water Cherenkov Detectors, each containing 200 tons of purified water and 4 PMT's (three 8” and one 10”), that cover a total surface area of 20,000 m^2. HAWC observes gamma rays in the 0.1–100 TeV range and has a sensitivity to...
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  8. 231. Recent results in gamma-ray astronomy with the ARGO-YBJ detector
    Tristano Di Girolamo (NA)
    6/23/16, 5:40 PM
    The ARGO-YBJ air shower detector has been in stable data taking for five years at the YangBaJing Cosmic Ray Laboratory (Tibet, P.R. China, 4300m a.s.l.) with a duty cycle >86% and an energy threshold of a few hundreds of GeV. With the scaler mode technique, the minimum threshold of 1 GeV can be reached. In this talk recent results in gamma-ray astronomy will be presented, including those from...
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  9. 275. Gamma ray astronomy above 100 TeV and the IceCube results
    Dr Silvia Vernetto (IFSI-INAF)
    6/23/16, 6:05 PM
    In this work we discuss the interest and scientific potential of galactic gamma astronomy at very high energy (E > 100 TeV),illustrating different predictions for the properties of the diffuse galactic gamma ray fluxes. For photons of such high energy it is very important to take into account absorption due to pair production interactions, including the contribution of interactions with...
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  10. 232. LATTES: a new gamma-ray detector concept for South America
    Dr Ruben Conceição (LIP)
    6/23/16, 6:30 PM
    Currently the detection of Very High Energy gamma-rays for astrophysics rely on the measurement of the Extensive Air Showers (EAS) either using Cherenkov detectors or EAS arrays with larger field of views but also larger energy thresholds. In this talk we present a novel hybrid detector concept for a EAS array with an improved sensitivity in the lower energies (~ 100 GeV). We discuss its main...
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  11. 277. RPC for gamma-ray detectors at high latitude
    Rinaldo Santonico (ROMA2)
    6/23/16, 6:50 PM
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