Showing papers in "Astroparticle Physics in 2013"
TL;DR: The Cherenkov Telescope Array (CTA) as discussed by the authors is a very high-energy (VHE) gamma ray observatory with an international collaboration with more than 1000 members from 27 countries in Europe, Asia, Africa and North and South America.
701 citations
TL;DR: A review of the latest developments in the determination of the extragalactic background light and its impact on the current understanding of the origin and production mechanisms of gamma-rays in blazars, and on energy releases in the universe can be found in this article.
248 citations
Max Planck Society1, Polish Academy of Sciences2, École Polytechnique3, IFAE4, Complutense University of Madrid5, Stockholm University6, Stanford University7, University of Leicester8, Columbia University9, University of Savoy10, Heidelberg University11, University of Paris12, Autonomous University of Barcelona13, DSM14, Durham University15, University of Leeds16, Humboldt University of Berlin17, Institut de Ciències de l'Espai18, University of Montpellier19, University of Tokyo20
TL;DR: In this article, Monte Carlo simulations are used to optimize the Cherenkov Telescopes Array (CTA) design and layout for very high-energy (VHE) gamma-ray astronomy.
243 citations
Michigan State University1, National Autonomous University of Mexico2, Universidad Michoacana de San Nicolás de Hidalgo3, Michigan Technological University4, University of Utah5, University of Maryland, College Park6, Polytechnic University of Puerto Rico7, University of Wisconsin-Madison8, National Institute of Astrophysics, Optics and Electronics9, Benemérita Universidad Autónoma de Puebla10, University of Guadalajara11, Pennsylvania State University12, Los Alamos National Laboratory13, George Mason University14, Colorado State University15, University of California, Irvine16, University of New Mexico17, Georgia Institute of Technology18, Instituto Politécnico Nacional19, Universidad Autónoma del Estado de Hidalgo20, University of New Hampshire21, University of California, Santa Cruz22, University of Alabama23, CINVESTAV24
TL;DR: The High Altitude Water Cherenkov (HAWC) observatory as mentioned in this paper is an array of large water-cherenkov detectors sensitive to gamma rays and hadronic cosmic rays in the energy band between 100 GeV and 100 TeV.
228 citations
TL;DR: In this paper, the authors study Fermi Gamma-Ray Space Telescope data from the direction of the inner Galaxy and derive stringent upper limits on the dark matter annihilation cross section.
191 citations
TL;DR: In this article, the KASCADE-Grande air-shower data was used to reconstruct the energy spectra of different mass groups by unfolding methods over an energy range where the detector is fully efficient.
178 citations
Autonomous University of Barcelona1, Royal Swedish Academy of Sciences2, Stockholm University3, University of Southampton4, University of La Laguna5, Spanish National Research Council6, Complutense University of Madrid7, Humboldt University of Berlin8, Pierre-and-Marie-Curie University9, University of the Witwatersrand10, INAF11, University of Johannesburg12, Durham University13, University of Hamburg14, University of Erlangen-Nuremberg15, Academia Sinica16, University of Bergen17
TL;DR: The Cherenkov Telescope Array (CTA) is a project for a next-generation observatory for very high energy (GeV-TeV) ground-based gamma-ray astronomy, currently in its design phase, and foreseen to be operative a few years from now.
177 citations
TL;DR: In this article, the authors evaluate the exposure during nadir observations with JEM-EUSO, the Extreme Universe Space Observatory, on-board the Japanese Experiment Module of the International Space Station.
148 citations
TL;DR: The Astrophysical Multimessenger Observatory Network (AMON) as discussed by the authors links multiple current and future high-energy, multimessenger, and follow-up observatories together into a single network, enabling near real-time coincidence searches for multimessesenger astrophysical transients and their electromagnetic counterparts.
139 citations
TL;DR: In this article, the basic theory of cosmic ray acceleration by shocks including the plasma instabilities confining cosmic rays near the shock, the effect of the magnetic field orientation, the maximum cosmic ray energy and the shape of the cosmic ray spectrum is described.
134 citations
TL;DR: CRPropa as mentioned in this paper is a public software to model the extra-galactic propagation of ultra-high energy nuclei of atomic number Z 26 through structured magnetic fields and ambient photon backgrounds taking into account all relevant particle interactions.
TL;DR: In this paper, the performance of Fermi-LAT and the current baseline CTA design for steady and transient, point-like and extended sources is compared, in particular in the overlapping energy range 10-100-GeV.
Max Planck Society1, Open University of Israel2, University of Leicester3, Tokyo Institute of Technology4, Santa Cruz Institute for Particle Physics5, University of Alabama in Huntsville6, Spanish National Research Council7, Kyoto University8, KEK9, Hiroshima University10, University of Amsterdam11, University of Tokyo12, Georgia Institute of Technology13, Nagoya University14, Osaka University15, Heidelberg University16, Konan University17, Aoyama Gakuin University18
TL;DR: In this article, the authors outline the science prospects for gamma-ray bursts (GRBs) with the Cherenkov Telescope Array (CTA), the next-generation ground-based gamma ray observatory operating at energies above few tens of GeV.
TL;DR: In this article, the authors present the scientific rationale for these surveys, their place in the multi-wavelength context, their possible impact and their feasibility, and show that the Galactic Plane survey has the potential to detect hundreds of sources.
TL;DR: In this paper, the authors proposed the Cherenkov Telescope Array (CTA) as a multi-element intensity interferometer for realizing imaging with sub-milliarcsecond angular resolution.
Polytechnic University of Milan1, University of South Carolina2, Lawrence Berkeley National Laboratory3, University of California, Berkeley4, Sapienza University of Rome5, University of Milan6, University of Milano-Bicocca7, Chinese Academy of Sciences8, University of Wisconsin-Madison9, University of Genoa10, California Polytechnic State University11, University of California, Los Angeles12, Lawrence Livermore National Laboratory13, University of Zaragoza14, University of Bologna15, University of Florence16, University of Edinburgh17
TL;DR: In this article, the background challenges for the CUORE experiment posed by surface contamination of inert detector materials such as copper, and three techniques explored to mitigate these backgrounds are described. But none of these techniques are suitable for the performance of the final CUORE apparatus.
TL;DR: In this article, the authors show that γ-ray data from several prominent representatives of young SNRs within the so-called "hadronic models" requires hard proton spectra extending to 100-TeV, and total energy released in accelerated protons and ions W CR ⩾ 10 50 ǫerg.
TL;DR: In this paper, the uncertainty in the interpretation of direct detection experiments for high (>100 GeV) mass dark matter candidates is less than an order of magnitude in cross-section.
Paris Diderot University1, Max Planck Society2, École Polytechnique3, Complutense University of Madrid4, SLAC National Accelerator Laboratory5, Nicolaus Copernicus University in Toruń6, Washington University in St. Louis7, University of Oulu8, Kyoto University9, Harvard University10, Columbia University11, Dublin Institute for Advanced Studies12, University of São Paulo13, University of Leicester14, Kumamoto University15, Heidelberg University16
TL;DR: The Cherenkov Telescope Array (CTA) as discussed by the authors was proposed to boost the sample of active galactic nuclei (AGN) detected in the VHE range by about one order of magnitude, shedding new light on AGN population studies, and AGN classification and unification schemes.
TL;DR: The role of nearby galactic sources, the supernova remnants, in formation of observed energy spectrum and large-scale anisotropy of high-energy cosmic rays is studied in this article.
TL;DR: In recent years one such detector type, the cluster of imaging air Cherenkov telescopes, has reached a very productive state, whilst several alternative approaches have been explored, including converted solar power collectors and novel high-altitude particle shower detectors which promised to extend the energy range covered as mentioned in this paper.
Fermilab1, Augustana University2, University of California, Los Angeles3, Princeton University4, University of Massachusetts Amherst5, Moscow State University6, University of Houston7, Petersburg Nuclear Physics Institute8, Black Hills State University9, Kurchatov Institute10, University College London11, University of Chicago12, Virginia Tech13, National Academy of Sciences of Ukraine14, Joint Institute for Nuclear Research15, Temple University16, Drexel University17, University of Arkansas at Little Rock18
TL;DR: In this paper, the authors measured the light yield of the DarkSide-10 detector using the readily-identifiable full-absorption peaks from gamma ray sources combined with single-photo-electron calibrations using low-occupancy laser pulses.
Case Western Reserve University1, South Dakota School of Mines and Technology2, Yale University3, Lawrence Livermore National Laboratory4, University of South Dakota5, Brown University6, University of Maryland, College Park7, University of Rochester8, University of California, Berkeley9, Lawrence Berkeley National Laboratory10, University of Coimbra11, Texas A&M University12, University of California, Davis13, Harvard University14, University of California, Santa Barbara15
TL;DR: The results of the three-month above-ground commissioning run of the Large Underground Xenon (LUX) experiment at the Sanford Underground Research Facility located in Lead, South Dakota, USA are reported in this paper.
TL;DR: In this article, the gamma and neutron background coming from radioactive decays in the set-up and shielding materials were analyzed for the EDELWEISS-II setup with GEANT4 and normalised the expected background rates to the measured radioactivity levels.
TL;DR: The Cerenkov Telescope Array (CTA) is an excellent experimental tool for making such tests with sensitivities exceeding those possible using other detectors as discussed by the authors, and it can be used to test Lorentz invariance.
INAF1
TL;DR: In this article, a systematic study of different methods for the analytic calculation of ultra-high energy nuclei diffuse spectra is presented, and three methods of spectra calculations are investigated and compared: trajectory method, kinetic equation combined with trajectory calculations and coupled kinetic equations.
INAF1
TL;DR: In this paper, the authors discussed the problem of ultra high energy nuclei propagation in extragalactic background radiations, including infra-red and visible/ultra-violet radiations.
TL;DR: In this paper, the authors consider the possibility that the behavior of the rotational velocities of test particles gravitating around galaxies can be explained within the framework of the recently proposed hybrid metric-Palatini gravitational theory.
TL;DR: In this article, the sensitivity of axion searches by liquid xenon detectors was investigated using the axio-electric eect (an analogue of the photoelectric effect) using case studies.
TL;DR: In this paper, a dedicated analysis of the muon-induced background in the EDELWEISS dark matter search has been performed on a data set acquired in 2009 and 2010.