ASTRI data reduction software in the framework of the Cherenkov Telescope Array

Lombardi, S.; Antonelli, L. A.; Bigongiari, C.; Cardillo, M.; Lucarelli, F.; Perri, M.; Stamerra, A.; Visconti, Francesco

doi:10.1117/12.2311293

Cited by 13 publications

(13 citation statements)

References 24 publications

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“…However, given the limited exposure time, the reduced efficiency of the telescope, the non-optimal tuning of the camera, and the rough calibrations used for the data reduction, this was not unexpected. Nevertheless, these observations allowed to verify the end-toend concept of the prototype, from the photon detection to the data analysis, with a complete data analysis report being given in [21]. The variance mode has been evaluated in January and March 2018 and showed its potential in assessing the telescope's pointing behavior [10] and checking the optical alignment of the M1 segments [12].…”

Section: The Commissioning Of the Astri-horn Telescopementioning

confidence: 99%

“…Since then, the camera underwent engineering tests, and some scientific runs were performed. First trigger rates have been recorded as function of the pixel trigger thresholds during moonless nights while pointing the telescope at different sky positions, with a topological trigger of at least five contiguous pixels [12,21]. A preliminary analysis of the curves indicated the camera's working point to be at ∼ 11 phe, meaning that the trigger rate in the region dominated by the air shower events is lower than expected from measurements previously obtained in lab.…”

Section: The Commissioning Of the Astri-horn Telescopementioning

confidence: 99%

“…On the other hand, the trigger threshold was found to be higher [12] due to a local NSB higher than expected. In December 2017, 1.7 hours of gamma-ray data on the Crab Nebula and 1.4 hours of dedicated off target data were collected, respectively, resulting in a non-detection (see [21] for details) of this well-known VHE emitter. However, given the limited exposure time, the reduced efficiency of the telescope, the non-optimal tuning of the camera, and the rough calibrations used for the data reduction, this was not unexpected.…”

Section: The Commissioning Of the Astri-horn Telescopementioning

confidence: 99%

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The ASTRI Dual-Mirror Small-Size Cherenkov Telescope

Arcaro¹

2019

Proceedings of High Energy Astrophysics in Southern Africa — PoS(HEASA2018)

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The ASTRI dual-mirror small-size telescope (ASTRI-Horn) is an imaging atmospheric Cherenkov telescope that was developed by the Italian National Institute of Astrophysics (INAF) within the framework of the Cherenkov Telescope Array (CTA) project, the next-generation ground-based very-high-energy gamma-ray observatory. The CTA observatory will consist of two sites configured in two arrays of telescopes of different sizes. They will be located in the Northern and Southern Hemispheres to cover the full sky. ASTRI (Astrofisica con Specchi a Tecnologia replicante Italiana) is the Italian proposal for the small-size telescopes and its design is based on a Schwarzschild-Couder configuration. To fulfill the required plate scale, the camera is based on a new technology involving the use of Silicon-photomultipliers. With its wide field of view of 10 degrees, it is optimized for gamma-ray observations in the range from few TeV up to several tens of TeV. The ASTRI prototype is installed at Serra La Nave at 1735 m a.s.l. in Sicily, Italy, and is currently going through the science validation phase. A further development of the program foresees the construction of a set of nine ASTRI telescopes proposed as pathfinder for the CTA array. In this contribution, the main features of the ASTRI telescope will be described and an update on the latest news on the prototype activities and the mini-array will be presented.

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Section: The Commissioning Of the Astri-horn Telescopementioning

confidence: 99%

Section: The Commissioning Of the Astri-horn Telescopementioning

confidence: 99%

Section: The Commissioning Of the Astri-horn Telescopementioning

confidence: 99%

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The ASTRI Dual-Mirror Small-Size Cherenkov Telescope

Arcaro¹

2019

Proceedings of High Energy Astrophysics in Southern Africa — PoS(HEASA2018)

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“…The scientific prospects of the observations of potential ASTRI-MA targets have been evaluated using a suitable set of instrument response functions (IRFs) extracted from a dedicated Monte-Carlo (MC) production of -ray and background (proton and electron) showers tailored to the expected array configuration and site atmospheric characteristics. MC data were analysed with A-S S , the data reduction and scientific analysis software of the ASTRI Project [4]. To analyse the high-level scientific simulations, we used CTOOLS v.1.7.2 [5] and G v.0.18 [6].…”

Section: Fields and Targets Of Interestmentioning

confidence: 99%

Observatory Galactic Science with the ASTRI-Mini Array during the observatory phase of the project

D’Aí¹,

Amato²,

Burtovoi³

et al. 2021

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)

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“…Besides the purpose to verify technological and operational aspects, the ASTRI mini-array is designed to perform astrophysical observations [16]. Based on Monte Carlo studies performed with the A-SciSoft package [17], the ASTRI mini-array could push the next generation of IACTs towards being sensitive to gamma rays above 10 TeV up to about 100 TeV. Several studies have been conducted to evaluate its potential science cases, by simulating the TeV gamma-ray emission…”

Section: Science With the Astri Mini-arraymentioning

confidence: 99%

The ASTRI-Horn Dual-Mirror Small-Size Cherenkov Telescope: recent updates, first results and outlook

Arcaro¹

2020

Proceedings of 7th Annual Conference on High Energy Astrophysics in Southern Africa — PoS(HEASA2019)

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The ASTRI project represents an effort of an international collaboration led by the Istituto Nazionale di Astrofisica, Italy, in conjunction with the Universidade de Sao Paulo, Brazil, and the NorthWest University, South Africa, aiming at assessing the technology of an array of smallsize Cherenkov telescopes (SSTs). In this respect, the ASTRI-Horn telescope, an end-to-end prototype, has been installed in Sicily, on the slopes of the Etna volcano at 1735 m a.s.l. The telescope is characterized by a dual-mirror Schwarzschild-Couder design that covers a wide field of view and favors gamma-ray observations in the range from few TeVs up to tens of TeV. Its curved focal-plane camera consists of Silicon-photomultipliers, which are controlled by fast front-end electronics. The complete end-to-end approach includes the implementation of calibration as well as control and acquisition systems, together with the data reduction, archiving and analysis software. The ASTRI collaboration has successfully completed the commissioning and science verification phase of the prototype, including observation of the Crab Nebula. A mini-Array composed of nine ASTRI telescopes is being developed and operated by INAF in the context of the preparatory effort for the proposed participation in the Cherenkov Telescope Array (CTA). Apart from a few minor changes implemented to improve the telescope design, the mini-array telescopes will be very similar to the ASTRI-Horn telescope. In this contribution an overview of the main features and performance of the ASTRI-Horn telescope is presented together with recent updates and first scientific results. In addition to this, the technological evolution towards the ASTRI mini-array and its scientific expectations are outlined.

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ASTRI data reduction software in the framework of the Cherenkov Telescope Array

Cited by 13 publications

References 24 publications

The ASTRI Dual-Mirror Small-Size Cherenkov Telescope

The ASTRI Dual-Mirror Small-Size Cherenkov Telescope

Observatory Galactic Science with the ASTRI-Mini Array during the observatory phase of the project

The ASTRI-Horn Dual-Mirror Small-Size Cherenkov Telescope: recent updates, first results and outlook

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