A NECTAr-based upgrade for the Cherenkov cameras of the H.E.S.S. 12-meter telescopes

Ashton, T.; Backes, Michael; Balzer, A.; Berge, D.; Bolmont, J.; Bonnefoy, S.; Brun, F.; Chaminade, T.; Delagnes, É.; Fontaine, G.; Füßling, M.; Giavitto, G.; Giebels, B.; Glicenstein, J. F.; Gräber, Tobias; Hinton, J. A.; Jahnke, A.; Klepser, S.; Kossatz, Marko; Kretzschmann, A.; Lefranc, V.; Leich, H.; Lenain, J.‐P.; Lüdecke, H.; Lypova, I.; Manigot, P.; Marandon, V.; Moulin, Emmanuel; Murach, T.; Naurois, M. de; Nayman, P.; Ohm, S.; Penno, M.; Ross, D.; Šálek, D.; Schade, Markus; Schwab, Thomas; Shiningayamwe, K.; Stegmann, C.; Steppa, C.; Tavernet, J.‐P.; Thornhill, J.; Toussenel, F.; Vincent, P.

doi:10.1016/j.astropartphys.2019.102425

Cited by 27 publications

(16 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The cameras detect and record the signal using an array of photomultipliers. The cameras of the four 12 meter telescopes have been upgraded in 2015=2016, improving their performance and robustness [35]. In 2012, a fifth 28 meter telescope (CT5) was added at the center of the array, allowing the event detection down to ∼20 GeV.…”

Section: A Observation and Datasetmentioning

confidence: 99%

Search for dark matter annihilation in the Wolf-Lundmark-Melotte dwarf irregular galaxy with H.E.S.S.

Abdallah¹,

Adam²,

Aharonian³

et al. 2021

Phys. Rev. D

Self Cite

View full text Add to dashboard Cite

Section: A Observation and Datasetmentioning

confidence: 99%

Search for dark matter annihilation in the Wolf-Lundmark-Melotte dwarf irregular galaxy with H.E.S.S.

Abdallah¹,

Adam²,

Aharonian³

et al. 2021

Phys. Rev. D

Self Cite

View full text Add to dashboard Cite

“…The three major, currently operating, stereoscopic IACT systems are H.E.S.S. [10], MAGIC [11] and VERITAS [8].…”

Section: Iact Techniquementioning

confidence: 99%

TeV Instrumentation: Current and Future

Sitarek

2022

Galaxies

View full text Add to dashboard Cite

During the last 20 years, TeV astronomy has turned from a fledgling field, with only a handful of sources, into a fully-developed astronomy discipline, broadening our knowledge on a variety of types of TeV gamma-ray sources. This progress has been mainly achieved due to the currently operating instruments: imaging atmospheric Cherenkov telescopes, surface arrays and water Cherenkov detectors. Moreover, we are at the brink of a next generation of instruments, with a considerable leap in performance parameters. This review summarizes the current status of the TeV astronomy instrumentation, mainly focusing on the comparison of the different types of instruments and analysis challenges, as well as providing an outlook into the future installations. The capabilities and limitations of different techniques of observations of TeV gamma rays are discussed, as well as synergies to other bands and messengers.

show abstract

“…array underwent two major upgrades of the Cherenkov cameras. The original HESS-I cameras were replaced with NECTar-based readout chip design cameras in 2015 and 2016 (Ashton et al 2020). In September 2019, the camera on the CT5 telescope was upgraded to the digital CTA-prototype FlashCam camera (Pühlhofer et al 2019).…”

Section: Rta Performancementioning

confidence: 99%

The H.E.S.S. transients follow-up system

Hoischen

Füßling

Ohm

et al. 2022

A&A

Self Cite

View full text Add to dashboard Cite

Observations of astrophysical transients have brought many novel discoveries and provided new insights into the physical processes at work under extreme conditions in the Universe. Multi-wavelength and multi-messenger observations of variable objects require dedicated procedures and follow-up systems capable of digesting and reacting to external alerts to execute coordinated follow-up campaigns. The main functions of such follow-up systems are the processing, filtering, and ranking of the incoming alerts, the fully automated rapid execution of the observations according to an observation strategy tailored to the instrument, and real-time data analysis with feedback to the operators and other instruments. The High Energy Stereoscopic System (H.E.S.S.) has been searching for transient phenomena since its inauguration in 2003. In this paper, we describe the transients follow-up system of H.E.S.S. which became operational in 2016. The system allows H.E.S.S. to conduct a more versatile, optimised, and largely autonomous transient follow-up programme, combining all major functionalities in one systematic approach. We describe the design, central functionalities, and interfaces of the follow-up system in general and its three main components in detail: the Target of Opportunity (ToO) alert system, the data acquisition and central control system, and the real-time analysis. We highlight architectural decisions and features that enable fully automatic ToO follow-up and indicate key performance metrics of the subsystems. We discuss the system's capabilities and highlight the need for a fine-tuned interplay of the different subsystems in order to react quickly and reliably. Lessons learnt from the development, integration, and operation of the follow-up system are reviewed in light of new and large science infrastructures and associated challenges in this exciting new era of inter-operable astronomy.

show abstract

A NECTAr-based upgrade for the Cherenkov cameras of the H.E.S.S. 12-meter telescopes

Cited by 27 publications

References 19 publications

Search for dark matter annihilation in the Wolf-Lundmark-Melotte dwarf irregular galaxy with H.E.S.S.

Search for dark matter annihilation in the Wolf-Lundmark-Melotte dwarf irregular galaxy with H.E.S.S.

TeV Instrumentation: Current and Future

The H.E.S.S. transients follow-up system

Contact Info

Product

Resources

About