Eckart Lorenz

A conceptual design of an advanced 23 m diameter IACT of 50 tons for ground-based gamma-ray astronomy (2009)

Lorenz, Eckart, Ferenc, Daniel, Fonseca, M. Victoria, Wagner, Robert

A conceptual design of an advanced Imaging Air Cherenkov Telescope with a 23 m diameter mirror and of 50 tons weight will be presented. A system photon detection efficiency of 15-17%, averaged over...

First tests and long-term prospects of Geigermode avalanche photodiodes as camera sensors for IACTs (2009)

Lorenz, Eckart, Mirzoyan, Razmick, Miyamoto, Hiroko, Otte, Nepomuk, Renker, Dieter

Geigermode avalanche photodiodes (G-APD) are novel photodetectors, which can detect single photons. This type of diodes might become an alternative to photomultipliers (PMT) in next-generation...

Discovery of Very High Energy Gamma-Rays from the Distant Flat Spectrum Radio Quasar 3C 279 with the MAGIC Telescope (2007)

Teshima, Masahiro, Prandini, Elisa, Bock, Rudolf, Errando, Manel, Kranich, Daniel, Majumdar, Pratik, ...

The quasar 3C 279 is one of the best-studied flat spectrum radio quasars. It is located at a comparatively large redshift of z=0.536: E>100 GeV observations of such distant sources were until...

Discovery of Very High Energy Gamma-Rays from the Distant Flat Spectrum Radio Quasar 3C 279 with the MAGIC Telescope

Teshima, Masahiro, Prandini, Elisa, Bock, Rudolf, Errando, Manel, Kranich, Daniel, Lindfors, Elina, ...

The quasar 3C 279 is one of the best-observed flat spectrum radio quasars. It is located at a comparatively large redshift of z=0.538: E>100 GeV observations of such distant sources were until...

A Statistical Study Of Sub-Hour Flares of the VHE Gamma-Ray Emission of Markarian 421 During a High Flux State in 2001

Schweizer, Thomas, Wagner, Robert, Lorenz, Eckart

From January to April 2001 the active galactic nucleus Markarian 421 showed a persistent high-flux state and frequent flares with rapid rise and fall times in the very-high energy domain. We analyze...

A Statistical Study of Sub-Hour Flares of the VHE Gamma-Ray Emission of Markarian 421 During A High-Flux State in 2001

Schweizer, Thomas, Wagner, Robert, Lorenz, Eckart

From January to April 2001 the active galactic nucleus Markarian 421 showed a persistent high-flux state and frequent flares with rapid rise and fall times in the very-high energy domain. A deep...