Observing the sky at extremely high energies with CTA: Status of the GCT project

Sol, H.; Greenshaw, T.; Blanc, O. Le; White, Richard W.; project, Cta Gct

doi:10.22323/1.301.0822

Cited by 11 publications

(11 citation statements)

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“…For the SST, three approaches are being considered, with each having a primary mirror size of 4 m diameter and cameras using Si-PMs. Two of these use the SC design: the SST-2M-ASTRI prototyped at Serra La Nave, Sicily, Italy [18] and SST-2M-GCT in Meudon, France [19]. The third SST prototype, SST-1M, is being developed in Krakow, Poland and makes use of the DC design [20].…”

Section: Pos(icrc2017)1071 Pos(icrc2017)1071mentioning

confidence: 99%

Cherenkov Telescope Array: The Next Generation Gamma-ray Observatory

Ong

2017

Proceedings of 35th International Cosmic Ray Conference — PoS(ICRC2017)

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The CTA Consortium 1 , represented by Rene A. Ong 2 The Cherenkov Telescope Array (CTA) will be the next-generation gamma-ray observatory, investigating gamma-ray and cosmic ray astrophysics at energies from 20 GeV to more than 300 TeV. The observatory, consisting of large arrays of imaging atmospheric Cherenkov telescopes in both the southern and northern hemispheres, will provide full-sky coverage and will achieve a sensitivity improved by up to an order of magnitude compared to existing instruments such as H.E.S.S., MAGIC and VERITAS. CTA is expected to discover hundreds of new TeV gammaray sources, allowing it to significantly advance our understanding of the origin of cosmic rays, to probe much larger distances in the universe, and to search for WIMP dark matter with unprecedented sensitivity in TeV mass range. The development of CTA is being carried out by a worldwide consortium of scientists from 32 countries. Consortium scientists have developed the core scientific programme of CTA and institutes of the Consortium are expected to provide the bulk of the CTA components. The construction of CTA is overseen by the CTA Observatory that will in the future manage observatory operations, the guest observer programme, and data dissemination. This talk will review the scientific motivation for CTA, focusing on the key science projects that form the core programme of research. The talk will outline the design of CTA, including the science drivers, overall concept, performance optimization, and array layouts. The current status of CTA, including sites, prototype telescope progress, and steps forward will also be described.

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Section: Pos(icrc2017)1071 Pos(icrc2017)1071mentioning

confidence: 99%

Cherenkov Telescope Array: The Next Generation Gamma-ray Observatory

Ong

2017

Proceedings of 35th International Cosmic Ray Conference — PoS(ICRC2017)

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“…4 shows the apparent power measured at the main power supply when the azimuth axis is in motion at different velocities with all other subsystems switched off. The mean apparent power required for azimuth slewing is 200 VA with a peak at about 230 VA (see [10] for figure). This test result confirms that the technical choices made for the AAS drives fulfil easily the current CTA specification (maximum power available in the CTA power grid is about 10 kW).…”

Section: Drive Performancementioning

confidence: 99%

Towards f inal characteris ation and performance of the GCT prototype telescope structure for the Cherenkov Telescope Array

Blanc¹,

Dangeon²,

Hocdé³

et al. 2017

Proceedings of 35th International Cosmic Ray Conference — PoS(ICRC2017)

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The Gamma-ray Cherenkov Telescope (GCT) is an innovative dual-mirror solution proposed for the Small-Size-Telescopes of the future Cherenkov Telescope Array (CTA), capable of imaging the showers induced by cosmic gamma-rays with energies from a few TeV up to 300 TeV. The Schwarzschild-Couder design on which the telescope optical design is based makes possible the construction of a fast telescope (primary mirror diameter 4 m, focal length 2.3 m) with a plate scale well matched to compact photosensors, such as multi-anode or silicon photomultipliers (MAPMs and SiPMs, respectively) for the camera. The prototype GCT on Meudon's site of the Observatoire de Paris saw first Cherenkov light from air showers in November 2015, using an MAPM-based camera. In this contribution, we firstly report on the prototype GCT telescope's performance during its assessment phase. Secondly, we present the telescope configuration during a campaign of observations held in spring 2017. Finally, we describe studies of the telescope structure, such as the pointing and tracking performance.

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“…CHEC H. Schoorlemmer from the extracted Hillas parameters are shown in red. For further images and a comparison to Monte Carlo see [11]. The lower images show the peak arrival time for all camera pixels for the same events as the upper images.…”

Section: Pos(icrc2017)817mentioning

confidence: 99%