English
Related papers

Related papers: GammaBayes: a Bayesian pipeline for dark matter de…

200 papers

For the proposed Cherenkov Telescope Array (CTA), a post-calibration point-source location accuracy of 3 seconds of arc is aimed for under favorable observing conditions and for gamma-ray energies exceeding 100 GeV. In this contribution,…

Instrumentation and Methods for Astrophysics · Physics 2015-09-08 Stefan Eschbach , Alexander Ziegler , Christopher van Eldik , Johannes Veh , David Berge , Markus Gaug

In my contribution I review the status of indirect detection of dark matter with gamma-rays, including results of the Fermi Gamma-ray Space Telescope as well as Imaging Air Cherenkov Telescopes (IACT), like H.E.S.S., MAGIC and VERITAS. I…

Cosmology and Nongalactic Astrophysics · Physics 2011-03-30 Jan Conrad

The Cherenkov Telescope Array (CTA) is a future gamma-ray observatory that is planned to significantly improve upon the sensitivity and precision of the current generation of Cherenkov telescopes. The observatory will consist of several…

Atmospheric Cerenkov Telescopes, including HESS and MAGIC, have detected a spectrum of gamma-rays from the galactic center region which extends from $\sim$200 GeV or lower, to at least $\sim$10 TeV. Although the source of this radiation is…

Astrophysics · Physics 2008-11-26 Gabrijela Zaharijas , Dan Hooper

The MAGIC TeV gamma-ray telescopes have devoted several hundreds hour of observation time in about a decade, to hunt for particle dark matter indirect signatures in gamma rays, from various candidate targets of interest in the sky: the…

High Energy Astrophysical Phenomena · Physics 2017-01-23 Michele Doro

The Cherenkov Telescope Array (CTA) will be the next generation observatory employing different types of Cherenkov telescopes for the detection of particle showers initiated by very-high-energy gamma rays. A good knowledge of the Earth's…

Instrumentation and Methods for Astrophysics · Physics 2018-01-22 Stanislav Stefanik , Raquel de los Reyes , Dalibor Nosek

Molecular clouds act as primary targets for cosmic-ray interactions and are expected to shine in gamma-rays as a by-product of these interactions. Indeed several detected gamma-ray sources both in HE and VHE gamma-rays (HE: 100 MeV < E <…

High Energy Astrophysical Phenomena · Physics 2015-06-12 G. Pedaletti , D. F. Torres , S. Gabici , E. de Oña Wilhelmi , D. Mazin , V. Stamatescu

We discuss the potential for the detection of dark matter and the characterization of its particle nature via the observation of dark matter subhalos. Specifically, we discuss the search for dark matter Galactic subhalos in the gamma-ray…

The Cherenkov Telescope Array (CTA) is the next generation very high energy gamma-ray observatory. It will consist of three classes of telescopes, of large, medium and small sizes. The small telescopes, of 4 m diameter, will be dedicated to…

Gamma-ray emitting narrow-line Seyfert 1 ($\gamma$-NLSy1) galaxies are thought to harbour relatively low-mass black holes (10$^6$-10$^8$ M$_{\odot}$) accreting close to the Eddington limit. They show characteristics similar to those of…

High Energy Astrophysical Phenomena · Physics 2018-09-11 P. Romano , S. Vercellone , L. Foschini , F. Tavecchio , M. Landoni , J. Knödlseder

In this article, I summarize and discuss the body of evidence which has accumulated in favor of dark matter in the form of approximately 10 GeV particles. This evidence includes the spectrum and angular distribution of gamma rays from the…

Cosmology and Nongalactic Astrophysics · Physics 2012-01-09 Dan Hooper

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…

Cosmology and Nongalactic Astrophysics · Physics 2015-08-17 Moritz Hütten , Gernot Maier

The recent discovery of TeV emission from gamma-ray bursts (GRBs) by the MAGIC and H.E.S.S. Cherenkov telescopes confirmed that emission from these transients can extend to very high energies. The TeV energy domain reaches the most…

High Energy Astrophysical Phenomena · Physics 2019-10-16 Imre Bartos , K. Rainer Corley , Nihar Gupte , Neil Ash , Zsuzsa. Márka , Szabolcs Márka

The last 20 years have seen the development of new techniques in Astroparticle Physics providing access to the highest end of the electromagnetic spectrum. It has been shown that some sources emit photons up to energies close to 100 TeV.…

High Energy Astrophysical Phenomena · Physics 2015-08-04 J. L. Contreras , J. Rosado , F. Arqueros , M. López , J. A. Barrio , M. Nievas

The presence of substructures in dark matter haloes is an unavoidable consequence of the cold dark matter paradigm. Indirect signals from these objects have been extensively searched for with cosmic rays and gamma-rays. At first sight,…

High Energy Astrophysical Phenomena · Physics 2011-02-02 Pierre Brun , Emmanuel Moulin , Jürg Diemand , Jean-François Glicenstein

The presence of dark matter in the universe is nowadays supported by a substantial set of astronomical and cosmological observations. A large amount of dark matter is expected in the Galactic Center (GC) region. Thanks also to its…

High Energy Astrophysical Phenomena · Physics 2016-09-22 V. Lefranc , E. Moulin

In recent years, ground-based very-high-energy (VHE; E>100 GeV) gamma-ray astronomy has experienced a major breakthrough with the impressive astrophysical results obtained mainly by the current generation experiments like H.E.S.S., MAGIC,…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 R. M. Wagner , E. J. Lindfors , A. Sillanpää , S. Wagner

The Cherenkov Telescope Array (CTA) is the next generation very high-energy gamma-ray observatory, with at least 10 times higher sensitivity than current instruments. CTA will comprise several tens of Imaging Atmospheric Cherenkov…

‹ Prev 1 4 5 6 7 8 10 Next ›