Galactic observatory science with the ASTRI Mini-Array at the Observatorio del Teide

D’Aí, A.; Amato, Elena; Burtovoi, A.; Compagnino, Antonio Alessio; Fiori, Michele; Giuliani, A.; Palombara, N. La; Paizis, A.; Piano, G.; Saturni, Francesco Gabriele; Tutone, Antonio; Belfiore, A.; Cardillo, M.; Crestan, S.; Cusumano, G.; Valle, M. Della; Santo, M. Del; Barbera, A. La; Parola, V. La; Lombardi, S.; Mereghetti, S.; Morlino, G.; Pintore, Fabio; Romano, P.; Vercellone, S.; Antonelli, A.; Arcaro, C.; Bigongiari, C.; Boettcher, Markus; Bruno, P.; Bulgarelli, A.; Conforti, Vito; Costa, Alessandro; Pino, Elisabete de Gouveia Dal; Fioretti, V.; Germani, S.; Ghedina, A.; Gianotti, F.; Giordano, V.; Incardona, F.; Leto, G.; Longo, F.; López-Oramas, A.; Lucarelli, F.; Olmi, Barbara; Pagliaro, A.; Parmiggiani, N.; Romeo, G.; Stamerra, A.; Testa, V.; Tosti, G.; Umana, G.; Zampieri, L.; Caraveo, P. A.; Pareschi, G.

doi:10.1016/j.jheap.2022.06.006

Cited by 11 publications

(9 citation statements)

References 156 publications

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“…In the cosmic rays standard scenario, Galactic sources should be able to accelerate their light component (p and He) at least up to the "knee" energy (∼ 10 15 eV) (see [1][2][3][4][5] for recent reviews). Sources able to accelerate protons up to this energy will be referred to as "hadronic PeVatrons".…”

Section: The Pevatron Context and The Role Of Astri Mini-arraymentioning

confidence: 99%

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The ASTRI Mini-Array: in the search for hidden Pevatrons

Cardillo¹

2023

Proceedings of 7th Heidelberg International Symposium on High-Energy Gamma-Ray Astronomy — PoS(Gamma2022)

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Despite the enormous efforts done in very recent years, both theoretically and experimentally, the basic three questions about the cosmic rays origin remain without clear answers: what are their sources, how are they accelerated, how do they propagate? Gamma-ray astronomy plays a fundamental role in this field. Both relativistic protons and electrons can emit in the 𝛾ray band through different processes, but only the detection of hadronic 𝛾-ray emission can probe the acceleration of cosmic rays. In particular, due to the Klein-Nishina suppression of inverse Comptonemission at the highest energies, the detection of 𝛾-ray emission above 100 TeV was expected to provide firm proof of the acceleration of PeV hadrons. However, the recent results published by the LHAASO collaboration revealed the existence of several PeV sources likely related to PWNe, well known leptonic factories (e.g. the Crab Nebula for all). As a consequence, a 𝛾-ray detection at PeV energies may no longer be the final proof of hadronic acceleration. However, the limited angular resolution of LHAASO makes associations uncertain and more detailed and deeper studies are needed. In this context, the ASTRI Mini-Array, with its unprecedented sensitivity and angular resolution at E>10 TeV, not only can extend the gamma-ray spectra of candidate Cosmic Ray factories but could help to distinguish emission regions from PWNe and other LHAASO sources, shedding light on the nature of the highest energy emission.

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Section: The Pevatron Context and The Role Of Astri Mini-arraymentioning

confidence: 99%

“…Its angular resolution (0.05 • at 10 TeV) will be fundamental for a morphological reconstruction of extended sources like SNRs, PWNe and MSCs. Therefore, soon, the ASTRI Mini-Array will have a vast discovery space in the field of extreme 𝛾-rays, up to 100 TeV and beyond [14][15][16].…”

Section: The Pevatron Context and The Role Of Astri Mini-arraymentioning

confidence: 99%

The ASTRI Mini-Array: in the search for hidden Pevatrons

Cardillo¹

2023

Proceedings of 7th Heidelberg International Symposium on High-Energy Gamma-Ray Astronomy — PoS(Gamma2022)

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“…The ASTRI Science team will develop a strategy to concentrate the observational time on a limited number of programs with clearly identified objectives ( see [11] ). After this initial period the project will move towards an observatory model (see [12] and [13] ).…”

Section: Scientific Operationsmentioning

confidence: 99%

The Astri Mini-Array of Cherenkov Telescopes

Giuliani¹

2023

Proceedings of 7th Heidelberg International Symposium on High-Energy Gamma-Ray Astronomy — PoS(Gamma2022)

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We will describe the current status of the ASTRI Mini-Array, under construction at the Teide Astronomical Observatory in Tenerife, Spain. The final layout of the array will include nine small Cherenkov telescopes covering an area of about 650 x 270 square meters. The ASTRI telescopes adopt a dual-mirror Schwarzchild-Couder aplanatic optical design. In the focal plane, the ASTRI camera, based on silicon photo-multiplier detectors, will cover a large field-of-view ( ⩾ 10 deg in diameter). This system also provides good gamma-ray sensitivity at very high energies (VHE, above 10 TeV) combined with a good angular resolution. The scientific goals of the ASTRI Mini-Array include spectral and morphological characterization of the LHAASO sources and other Pevatron candidates, studies of PWNe and TeV halos, Blazar monitoring at VHE, fundamental physics and follow-up of transient events. The beginning of the scientific operations is planned for mid 2025. The first three years will be dedicated to the core science and the ASTRI Mini-Array will be run as an experiment. It will gradually move towards an observatory model in the following years, open to the community.

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“…In particular, the ASTRI Mini-Array is expected to improve the MAGIC sensitivity in the North for E > few TeV and, at the same time, to operate for a few years before the full completion of CTAO North. Therefore, the ASTRI Mini-Array will have a vast discovery space in the field of extreme gamma-rays, up to 100 TeV and beyond, as described in [3][4][5]. We can summarize the main ASTRI Mini-Array performance as follows: wide field of view (FoV) of about 10°; energy range from 1 TeV up to 200 TeV, angular resolution ∼ 3 ′ at 10 TeV and energy resolution ∼ 10% at 10 TeV .…”

Section: Introduction: the Astri Mini-arraymentioning

confidence: 99%

The ASTRI Mini-Array Core Science Program

Vercellone¹

2023

Preprint

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Celestial sources emitting at high-energy (HE, E >100 MeV) and at very high-energy (VHE, E >100 GeV) gamma-rays are of the order of a few thousands and a few hundreds, respectively. On the other hand, the number of sources emitting at ultra high-energy (UHE, E > several tens of TeV) gamma-rays are just a few dozens, and are currently being investigated by means of both ground-based imaging atmospheric Cherenkov telescopes (IACTs) and particle shower arrays. These rare VHE and UHE sources represent a new frontier in astrophysics. An array composed of nine ASTRI Cherenkov telescopes is under construction at the Observatorio del Teide (Tenerife, Spain). The ASTRI Mini-Array aims at providing robust answers to a few selected open questions in the VHE and UHE domains. The scientific program during the first four observing years will be devoted to the following Core Science topics: the origin of cosmic rays, the extra-galactic background light and the study of fundamental physics, the novel field in the VHE domain of gamma-ray bursts and multi-messenger transients, and finally the use of the ASTRI Mini-Array to investigate ultra high-energy cosmic rays and to undertake stellar intensity interferometry studies. We review the scientific prospects assessed through dedicated simulations, proving the potential of the ASTRI Mini-Array in pursuing breakthrough discoveries and discuss the synergies with current and future VHE facilities in the Northern hemisphere, such as MAGIC, LHAASO, HAWC, Tibet AS-, and CTAO-N.

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Galactic observatory science with the ASTRI Mini-Array at the Observatorio del Teide

Cited by 11 publications

References 156 publications

The ASTRI Mini-Array: in the search for hidden Pevatrons

The ASTRI Mini-Array: in the search for hidden Pevatrons

The Astri Mini-Array of Cherenkov Telescopes

The ASTRI Mini-Array Core Science Program

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