Vega A.

Prospects for Galactic transient sources detection with the Cherenkov Telescope Array

Lopez-Oramas A., Bulgarelli A., Chaty S., Chernyakova M. et autres

Several types of Galactic sources, like magnetars, microquasars, novae or pulsar wind nebulae flares, display transient emission in the X-ray band. Some of these sources have also shown emission at MeV-GeV energies. However, none of these Galactic transients have ever been detected …

Detection methods for the Cherenkov Telescope Array at very-short exposure times

Di Piano A., Bulgarelli A., Fioretti V., Baroncelli L. et autres

The Cherenkov Telescope Array (CTA) will be the next generation ground-based observatory for very-high-energy (VHE) gamma-ray astronomy, with the deployment of tens of highly sensitive and fast-reacting Cherenkov telescopes. It will cover a wide energy range (20 GeV - 300 TeV) with …

Monte Carlo Simulations and Validation of NectarCAM, a Medium Sized Telescope Camera for CTA

Armstrong T. P., Costantini H., Glicenstein J. -F., Lenain J. -P. et autres

The upcoming Cherenkov Telescope Array (CTA) ground-based gamma-ray observatory will open up our view of the very high energy Universe, offering an improvement in sensitivity of 5-10 times that of previous experiments. NectarCAM is one of the proposed cameras for the Medium-Sized …

HAWC J2227+610: a potential PeVatron candidate for the CTA in the northern hemisphere

Abdalla H., Abe H., Abe S., Abusleme A. et autres

Recent observations of the gamma-ray source HAWC J2227+610 by Tibet AS+MD and LHAASO confirm the special interest of this source as a galactic PeVatron candidate in the northern hemisphere. HAWC J2227+610 emits Very High Energy (VHE) gamma-rays up to 500 TeV, from …

Application of pattern spectra and convolutional neural networks to the analysis of simulated Cherenkov Telescope Array data

Aschersleben J., Peletier R. F., Vecchi M., Wilkinson M. H. F. et autres

The Cherenkov Telescope Array (CTA) will be the next generation gamma-ray observatory and will be the major global instrument for very-high-energy astronomy over the next decade, offering 5 − 10 × better flux sensitivity than current generation gamma-ray telescopes. Each telescope will …

Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centre

Abdalla H., Abe H., Abe S., Abusleme A. et autres

High-energy gamma rays are promising tools to constrain or reveal the nature of dark matter, in particular Weakly Interacting Massive Particles. Being well into its pre-construction phase, the Cherenkov Telescope Array (CTA) will soon probe the sky in the 20 GeV - …

Performance of the Cherenkov Telescope Array in the presence of clouds

Pecimotika M., Adamczyk K., Prester D. D., Gueta O. et autres

The Cherenkov Telescope Array (CTA) is the future ground-based observatory for gamma-ray astronomy at very high energies. The atmosphere is an integral part of every Cherenkov telescope. Different atmospheric conditions, such as clouds, can reduce the fraction of Cherenkov photons produced in …

CTA – the World’s largest ground-based gamma-ray observatory

R. Zanin, Roberta Zanin, H. Abdalla, Stanley K. Abe et autres

Very-high Energy (VHE) gamma-ray astroparticle physics is a relatively young field, and observations over the past decade have surprisingly revealed almost two hundred VHE emitters which appear to act as cosmic particle accelerators. These sources are an important component of the Universe, …

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