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The Cherenkov Telescope Array is expected to lead to the detection of many new supernova remnants in the TeV and multi-TeV range. In addition to the individual study of each SNR, the study of these objects as a population can help…

高能天体物理现象 · 物理学 2018-01-22 P. Cristofari , R. Zanin , S. Gabici , B. T. Humensky , M. Santander , R. Terrier

The Imaging Atmospheric Cherenkov technique allows to detect very high energy gamma rays from few tens of GeV to hundreds of TeV using ground-based instrumentation. At these energies a gamma ray generates a shower of secondary particles…

天体物理仪器与方法 · 物理学 2023-06-13 Juan Cortina , Carlos Delgado

The Cherenkov Telescope Array (CTA) is a future very high energy gamma-ray observatory. CTA will be comprised of small-,medium- and large-size telescopes covering an energy range from tens of GeV to hundreds of TeV and will surpass existing…

天体物理仪器与方法 · 物理学 2019-08-14 T. Jogler , M. D. Wood , J. Dumm , A. Bouvier

Secluded dark matter is one of the most popular dark matter models, where dark matter annihilations go into particles that belong to a dark sector. An interesting way to probe such models is via indirect detection. In particular, gamma-ray…

高能物理 - 唯象学 · 物理学 2019-09-04 Clarissa Siqueira

It is expected that specific globular clusters can contain up to a hundred of millisecond pulsars. These pulsars can accelerate leptons at the shock waves originated in collisions of the pulsar winds and/or inside the pulsar magnetospheres.…

天体物理学 · 物理学 2013-06-21 W. Bednarek , J. Sitarek

The Cherenkov Telescope Array (CTA) is a future ground-based gamma-ray observatory that will provide unprecedented sensitivity and angular resolution for the detection of gamma rays with energies above a few tens of GeV. In comparison to…

天体物理仪器与方法 · 物理学 2019-08-07 Victor Barbosa Martins , Markus Garczarczyk , Gerrit Spengler , Ullrich Schwanke

Measuring the electron diffusion coefficient is the most straightforward task in the study of gamma-ray pulsar halos. The updated measurements of the spatial morphology and spectrum of the Geminga halo by the High-Altitude Water Cherenkov…

高能天体物理现象 · 物理学 2026-04-21 Kun Fang

SNR G0.9+0.1 is a well known source in the direction of the Galactic Center composed by a Supernova Remnant (SNR) and a Pulsar Wind Nebula (PWN) in the core. We investigate the potential of the future Cherenkov Telescope Array (CTA),…

高能天体物理现象 · 物理学 2020-10-07 M. Fiori , L. Zampieri , A. Burtovoi , P. Caraveo , L. Tibaldo

Globular clusters are large collections of old stars that are orbiting the core of a galaxy. Our Milky Way Galaxy has about 160 known clusters, with perhaps more to be discovered. We first accumulated the necessary parameters for 16…

高能天体物理现象 · 物理学 2017-12-22 Hambeleleni Ndiyavala , Christo Venter , Petrus Paulus Kruger

TeV Halos, extended regions of TeV gamma-ray emission around middle-aged pulsars, have recently been established as a new source class in gamma-ray astronomy. These halos have been attributed to relativistic electrons and positrons that…

Hadron beams are invoked to explain the peculiar properties of a subclass of BL Lac objects, the so-called extreme BL Lacs (EHBLs). This scenario predicts a quite distinctive feature for the high-energy gamma-ray spectrum of these sources,…

高能天体物理现象 · 物理学 2018-11-07 F. Tavecchio , P. Romano , M. Landoni , S. Vercellone

Weakly interacting massive dark matter (DM) particles are expected to self-annihilate or decay, generating high-energy photons in these processes. This establishes the possibility for indirect detection of DM by \gamma-ray telescopes. For…

宇宙学与河外天体物理 · 物理学 2015-08-17 Moritz Hütten , Gernot Maier

We discuss the prospects for indirect detection of dark matter (DM) with the Cherenkov Telescope Array (CTA), a future ground-based gamma-ray observatory that will be sensitive to gamma rays in the energy range from a few tens of GeV to 100…

高能天体物理现象 · 物理学 2013-09-24 Matthew Wood , Jim Buckley , Seth Digel , Stefan Funk , Daniel Nieto , Miguel A. Sanchez-Conde

We study the density profile and shape of the Galactic halo using deep multicolour images from the MENeaCS and CCCP projects, over 33 fields selected to avoid overlap with the Galactic plane. Using multicolour selection and PSF…

星系天体物理 · 物理学 2015-06-24 B. Pila-Díez , J. T. A. de Jong , K. Kuijken , R. F. J. van der Burg , H. Hoekstra

We search for possible pulsar TeV halos among the very-high-energy (VHE) sources reported in different VHE surveys, among which in particular we use the results from the first Large High Altitude Air Shower Observatory (LHAASO) catalog of…

高能天体物理现象 · 物理学 2024-05-09 Dong Zheng , Zhongxiang Wang

The High-Altitude Water Cherenkov Observatory, or HAWC, is carrying out an unbiased survey of cosmic rays and gamma rays from the Northern Hemisphere between 100 GeV and 100 TeV. HAWC is currently the only high-uptime wide-field TeV…

高能天体物理现象 · 物理学 2019-08-13 Segev BenZvi

The present study investigates the feasibility of employing Cherenkov Telescope Array (CTA) technology for the detection of ultra-high-energy (UHE) neutrino-tau particles. By observing the Cherenkov light produced by charged particles…

高能物理 - 唯象学 · 物理学 2024-06-04 Tariq Bitam , Bouzid Boussaha , Mossaab Messamah

We investigate the possibility of detection of the VHE gamma-ray counterparts to the neutrino astrophysical sources within the Neutrino Target of Opportunity (NToO) program of CTA using the populations simulated by the FIRESONG software to…

高能天体物理现象 · 物理学 2021-08-12 O. Sergijenko , A. Brown , D. Fiorillo , A. Rosales de Leon , K. Satalecka , C. F. Tung , R. Reimann , T. Glauch , I. Taboada