Conveners
Cosmic Rays, Gamma Rays
- There are no conveners in this block
Cosmic Rays, Gamma Rays
- Francesco Longo (Istituto Nazionale di Fisica Nucleare)
Cosmic Rays, Gamma Rays
- There are no conveners in this block
Cosmic Rays, Gamma Rays
- Zhen Cao
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Masahiro Teshima27/09/2022, 17:50
The CTA is a new generation International gamma-ray observatory under construction, which will have a wider energy coverage and ten times better sensitivity than the currently running Telescopes, HESS, MAGIC, and VERITAS. The LST collaboration is constructing four Large Size Cherenkov Telescopes (LSTs) with 23m diameter dish in Spain, La Palma, and possibly another four LSTs in Paranal, Chile....
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Laura Olivera Nieto (Max Planck Institut fur Kernphysik MPIK)27/09/2022, 18:15
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Francesco Longo (Istituto Nazionale di Fisica Nucleare)27/09/2022, 18:40Talk
The Cherenkov Telescope Array (CTA) will be five to ten times more sensitive depending on energy with respect to current generation Imaging Cherenkov Telescopes and will have unprecedented accuracy in its detection of very-high-energy gamma rays in the energy range from 20 GeV to 300 TeV. CTA is designed to detect gamma rays over a larger area with dozens of telescopes located on the Canary...
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Elisabetta Bissaldi (Istituto Nazionale di Fisica Nucleare)27/09/2022, 19:05
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Roberta Sparvoli (Istituto Nazionale di Fisica Nucleare)28/09/2022, 09:00Talk
Direct measurements of cosmic rays in space have been extensively performed since the sixties by experiments on board stratospheric balloons, satellites and space stations. The main goals have been the search for primordial antimatter, signals of dark matter annihilation or of exotic particles, and the study of the mechanisms of production, acceleration and propagation of cosmic rays.
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In... -
Francesca Alemanno (Istituto Nazionale di Fisica Nucleare)28/09/2022, 09:25Talk
The DArk Matter Particle Explorer (DAMPE) is a satellite launched in December 2015. Its primary scientific goals include the study of Galactic Cosmic-Rays (GCR) up to hundreds of TeV. Even higher energies could be reached by the High Energy cosmic Radiation Detector (HERD) that is planned to be installed onboard the Chinese Space Station (CSS) in 2027, aiming to detect CR up to a few PeV...
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Zhen Cao (Institute of High Energy Physics)28/09/2022, 09:50
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Omar Tibolla28/09/2022, 10:15
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Ulisses Barres de Almeida (Centro Brasileiro de Pesquisas Físicas)28/09/2022, 11:00Talk
High-elevation particle detectors have recently opened-up a new observational window in Astronomy, significantly increasing the number of detected gamma-ray sources in the very- to ultra-high energy range. In particular, these instruments have achieved unprecedented sensitivity above 100 TeV and detected gamma ray emission from sources up to 1 PeV. The recent successes have all been obtained...
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Michael Unger28/09/2022, 11:25Talk
In this contribution I will present recent observational results on cosmic rays at ultrahigh energies (UHECRs) from the Telescope Array and the Pierre Auger Observatory. These results include the spectrum and composition of UHECRs, anisotropies of their arrival directions and hadronic interactions in air showers.
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Joerg Hoerandel (Radboud University Nijmegen)28/09/2022, 11:50
High-energy cosmic rays impinging on the atmosphere of the Earth initiate extensive air showers. The electrons and positrons in the shower interact with the Earth magnetic field, this yields to the emission of electromagnetic waves with frequencies of tens of MHz. Antenna ground arrays are used to record the radio emission and reconstruct the properties of cosmic rays, such as arrival...
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Silvia Celli (Istituto Nazionale di Fisica Nucleare)28/09/2022, 12:15Talk
Since its discovery more than hundred years ago, the origin of the cosmic-ray (CR) flux measured on Earth is still unknown. To explain the energy region up the knee, located at few PeV, supernova remnants (SNRs) are usually addressed as main CR accelerators. Despite experimental efforts devoted to the identification of PeV activity in SNRs through radiative signatures at the highest energies,...
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Michael Kachelriess (NTNU)28/09/2022, 12:40Talk
After a brief review of the status of ultrahigh-energy cosmic ray (UHECR) physics. I discuss observational and theoretical constraints on the sources of UHECRs. I comment also briefly on the role of magnetic fields. Then I discuss a recent analysis of radio galaxies as the dominant extragalactic UHECR sources. In particular, I argue that scenarios where few local sources like Fornax A and...
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Jacco Vink (University of Amsterdam)28/09/2022, 17:00
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Huirong Yan28/09/2022, 17:25Talk
Cosmic ray propagation is determined by the properties of interstellar turbulence. The multiphase nature of ISM and diversity of driving mechanisms give rise to spatial variation of turbulence properties. A new chapter of CR propagation research has begun when studies of particle transport and interstellar turbulence can confront each other. I shall report our current understandings of...
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