Refine
Document Type
- Article (3)
- Conference Proceeding (1)
- Other (1)
- Preprint (1)
Keywords
- Air showers (1)
- Cherenkov Telescopes (1)
- Design concepts (1)
- Ground based gamma ray astronomy (1)
- Next generation Cherenkov telescopes (1)
- TeV gamma-ray astronomy (1)
- UV (1)
- astronomy (1)
- balloon telescopes (1)
- detectors (1)
This paper presents the concept of a community-accessible stratospheric balloon-based observatory that is currently under preparation by a consortium of European research institutes and industry. We present the technical motivation, science case, instrumentation, and a two-stage image stabilization approach of the 0.5-m UV/visible platform. In addition, we briefly describe the novel mid-sized stabilized balloon gondola under design to carry telescopes in the 0.5 to 0.6 m range as well as the currently considered flight option for this platform. Secondly, we outline the scientific and technical motivation for a large balloon-based FIR telescope and the ESBO DS approach towards such an infrastructure.
Der Forschungskreis Vereinte Nationen veranstaltete am 25. Juni 2016 seine dreizehnte Konferenz in Kooperation mit dem „Forum internationale Ordnung“ des Auswärtigen Amtes. Die Potsdamer UNO-Konferenzen stellen in ihrem Programm traditionell eine Verbindung von Wissenschaft und Praxis her unter Beteiligung unterschiedlicher Disziplinen.
Die Konferenz 2016 widmete sich dem Thema „Die Rolle der Vereinten Nationen in der multilateralen Entwicklungszusammenarbeit“.
Entwicklung als wichtiges Ziel der Vereinten Nationen und ihrer Mitgliedstaaten ist auch für andere Handlungs- und Politikfelder wichtig. Bilanz und Ausblick, die auf der Konferenz unternommen wurden, betrafen deshalb nicht nur die Entwicklungspolitik im eigentlichen Sinne – hier standen die 2015 beschlossenen Nachhaltigkeitsziele (SDGs) zur Debatte –, sondern bezogen auch umweltpolitische und menschenrechtliche Aspekte mit ein.
Die Referate zum Thema Entwicklung wurden eingerahmt von zwei Vorträgen zu aktuellen UN-politischen Fragen: der Wahl des neuen Generalsekretärs der Vereinten Nationen in New York nach einem reformierten Wahlverfahren, das mehr Transparenz und für UN-Mitgliedstaaten und NGOs mehr Beteiligungsmöglichkeiten bietet, und die Neuorganisation innerhalb des Auswärtigen Amtes, was die Vereinten Nationen betrifft.
Ground-based gamma-ray astronomy has had a major breakthrough with the impressive results obtained using systems of imaging atmospheric Cherenkov telescopes. Ground-based gamma-ray astronomy has a huge potential in astrophysics, particle physics and cosmology. CTA is an international initiative to build the next generation instrument, with a factor of 5-10 improvement in sensitivity in the 100 GeV-10 TeV range and the extension to energies well below 100 GeV and above 100 TeV. CTA will consist of two arrays (one in the north, one in the south) for full sky coverage and will be operated as open observatory. The design of CTA is based on currently available technology. This document reports on the status and presents the major design concepts of CTA.
Introducing the CTA concept
(2013)
The Cherenkov Telescope Array (CTA) is a new observatory for very high-energy (VHE) gamma rays. CTA has ambitions science goals, for which it is necessary to achieve full-sky coverage, to improve the sensitivity by about an order of magnitude, to span about four decades of energy, from a few tens of GeV to above 100 TeV with enhanced angular and energy resolutions over existing VHE gamma-ray observatories. An international collaboration has formed with more than 1000 members from 27 countries in Europe, Asia, Africa and North and South America. In 2010 the CTA Consortium completed a Design Study and started a three-year Preparatory Phase which leads to production readiness of CTA in 2014. In this paper we introduce the science goals and the concept of CTA, and provide an overview of the project.