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The Cherenkov Telescope Array (CTA) is the next generation observatory for the study of very high-energy gamma rays from about 20 GeV up to 300 TeV. Thanks to the large effective area and field of view, the CTA observatory will be…

天体物理仪器与方法 · 物理学 2019-08-14 Andrea Zoli , Andrea Bulgarelli , Adriano De Rosa , Alessio Aboudan , Valentina Fioretti , Giovanni De Cesare , Ramin Marx

Imaging atmospheric Cherenkov telescopes (IACTs) that are sensitive to potential $\gamma$-ray signals from dark matter (DM) annihilation above $\sim50$ GeV will soon be superseded by the Cherenkov Telescope Array (CTA). CTA will have a…

The Water Cherenkov Detector Array (WCDA) is a major component of the Large High Altitude Air Shower Array Observatory (LHAASO), a new generation cosmic-ray experiment with unprecedented sensitivity, currently under construction. The WCDA…

高能天体物理现象 · 物理学 2021-02-24 Yingying Guo , Xiaochuan Chang , Hongbo Hu , Zhiguo Yao

We present simulations of the very high energy (VHE) gamma-ray light curve of the Crab pulsar as observed by the Cherenkov Telescope Array (CTA). The CTA pulse profile of the Crab pulsar is simulated with the specific goal of determining…

高能天体物理现象 · 物理学 2016-05-25 A. Burtovoi , L. Zampieri

We examine the capability of pulsar timing arrays (PTAs) to detect very small-scale clumps of dark matter (DM), which are a natural outcome of the standard cold dark matter (CDM) paradigm. A clump streaming near the Earth or a pulsar…

宇宙学与河外天体物理 · 物理学 2018-01-25 Kazumi Kashiyama , Masamune Oguri

The Cherenkov Telescope Array (CTA) will be the next generation ground based observatory in very high energy gamma ray astronomy. The facility will achieve a wide energy coverage, starting from a threshold of a few tens of GeV up to…

天体物理仪器与方法 · 物理学 2019-08-14 M. K. Daniel , M. Gaug , P. Majumdar

Timing observations are crucial for determining the basic parameters of newly discovered pulsars. Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) with the L-band 19-beam receiver covering the frequency range of…

高能天体物理现象 · 物理学 2023-10-12 W. Q. Su , J. L. Han , P. F. Wang , J. P. Yuan , Chen Wang , D. J. Zhou , Tao Wang , Yi Yan , W. C. Jing , Z. L. Yang , N. N. Cai , Xue Chen , Jun Xu , Lang Xie , H. G. Wang , R. X. Xu , X. P. You

The Cherenkov Telescopes Array (CTA) is planned to be an Observatory for very high energy gamma ray astronomy and will consist of several tens of telescopes which account for a reflective surface of more than 10000 m$^2$. The mirrors of…

天体物理仪器与方法 · 物理学 2019-08-14 M. C. Medina , B. Garcia , J. Maya , A. Mancilla , J. J. Larrarte , E. Rasztocky , M. Benitez , J. Dipold , M. Platino

Once completed, the Cherenkov Telescope Array (CTA) will be able to map the gamma-ray sky in a wide energy range from several tens of GeV to some hundreds of TeV and will be more sensitive than previous experiments by an order of magnitude.…

天体物理仪器与方法 · 物理学 2018-09-05 Kai Brügge , Alexey Egorov , Christian Bockermann , Katharina Morik , Wolfgang Rhode

We investigate the prospect of detecting the Dark Matter (DM) candidate in the three-loop radiative neutrino mass generation model extended with large electroweak multiplets of the Standard Model (SM) gauge group, at the future imaging…

高能物理 - 唯象学 · 物理学 2021-02-24 Talal Ahmed Chowdhury , Saquib Hassan , Jahid Hossain , Salah Nasri , Mahmud Ashraf Shamim

The Cherenkov Telescope Array (CTA) is the major ground-based gamma-ray observatory planned for the next decade and beyond. Consisting of two large atmospheric Cherenkov telescope arrays (one in the southern hemisphere and one in the…

高能天体物理现象 · 物理学 2019-06-12 The CTA Consortium , represented by Rene A. Ong

The Cherenkov Telescope Array (CTA) is the next generation very-high energy gamma-ray air-shower Cherenkov observatory. CTA will consist of many segmented-mirror telescopes of three different diameters, placed in two arrays, one in the…

天体物理仪器与方法 · 物理学 2019-08-14 A. Bonardi , J. Dick , E. Kendziorra , G. Pühlhofer , A. Santangelo

High-precision pulsar timing is central to a wide range of astrophysics and fundamental physics applications. When timing an ensemble of millisecond pulsars in different sky positions, known as a pulsar timing array (PTA), one can search…

天体物理仪器与方法 · 物理学 2018-10-09 R. N. Caballero

Context. The recent discovery of several ultra high-energy gamma-ray emitters in our Galaxy represents a significant advancement towards the characterisation of its most powerful accelerators. Nonetheless, in order to unambiguously locate…

高能天体物理现象 · 物理学 2024-09-25 Silvia Celli , Giada Peron

The detection of very-high-energy gamma rays from supernova remnant shells testifies of the acceleration of particles at strong shocks. Many aspects of the particle acceleration remain however unclear. The study of individual objects is…

高能天体物理现象 · 物理学 2018-03-20 Pierre Cristofari

We present results from an emission code that assumes millisecond pulsars (MSPs) to be sources of relativistic particles in globular clusters (GCs) and models the resulting spectral energy distribution (SED) of Galactic GCs due to these…

高能天体物理现象 · 物理学 2017-11-08 Hambeleleni Ndiyavala , Petrus Paulus Kruger , Christo Venter

The hypothesis that supernova remnants are key sources of Galactic cosmic rays gains support from evidence that HESS J1731-347 one of the few Galactic objects capable of accelerating hadronic cosmic rays to TeV energies may harbor an exotic…

高能天体物理现象 · 物理学 2026-03-13 C. R. Das

The measurement of $\gamma$-rays originating from active galactic nuclei offers the unique opportunity to study the propagation of very-high-energy photons over cosmological distances. Most prominently, $\gamma$-rays interact with the…

Milagro observations have found bright, diffuse TeV emission concentrated along the galactic plane of the Milky Way. The intensity and spectrum of this emission is difficult to explain with current models where gamma-ray production is…

高能天体物理现象 · 物理学 2018-03-28 Tim Linden , Benjamin J. Buckman

Pulsar Timing Arrays (PTAs) are expected to be able to detect gravitational waves (GWs) from individual supermassive black hole binaries in the near future. In order to identify the host galaxy of a gravitational wave source, the angular…

广义相对论与量子宇宙学 · 物理学 2023-12-20 Ryo Kato , Keitaro Takahashi