Concept

Télescope géant Magellan

Publications associées (23)

Design and operation of FACT - the first G-APD Cherenkov telescope

Werner Lustermann, Mathieu Ribordy, Thomas Günther Bretz, Camille Haller

The First G-APD Cherenkov Telescope (FACT) is designed to detect cosmic gamma-rays with energies from several hundred GeV up to about 10 TeV using the Imaging Atmospheric Cherenkov Technique. In contrast to former or existing telescopes, the camera of the ...

Iop Publishing Ltd2013

A Raman lidar to measure water vapor in the atmospheric boundary layer

Hubert van den Bergh, Valentin Simeonov, Martin Froidevaux, Marc Parlange, Chad Higgins, Eric Richard Pardyjak, Pablo Roberto Ristori, Ilya Serikov

A new multi-telescope scanning Raman lidar designed to measure the water vapor mixing ratio in the atmospheric boundary layer for a complete diurnal cycle with high resolution spatial (1.25 m) and temporal (1 s) resolutions is presented. The high resolutio ...

Elsevier2013

Measuring galaxy [OII] emission line doublet with future ground-based wide-field spectroscopic surveys (Research Note)

Jean-Paul Richard Kneib, Johan Comparat, David Schlegel

The next generation of wide-field spectroscopic redshift surveys will map the large-scale galaxy distribution in the redshift range 0.7

EDP Sciences2013

Large Micromirror Array Based on a Scalable Technology for Astronomical Instrumentation

Michael David Canonica

Understanding the formation of galaxies and studying the expansion of the Universe, need the spectral characterization of faint astronomical objects such as stars or galaxies. From these spectra, the distance, the velocity and the chemical composition of t ...

EPFL2012

Results of the prototype camera for FACT

Werner Lustermann, Mathieu Ribordy, Thomas Günther Bretz

The maximization of the photon detection efficiency (PDE) is a key issue in the development of cameras for Imaging Atmospheric Cherenkov Telescopes. Geiger-mode Avalanche Photodiodes (G-APD) are a promising candidate to replace the commonly used photomulti ...

2011

VLT adaptive optics search for luminous substructures in the lens galaxy towards SDSS J0924+0219

Frédéric Courbin, Georges Meylan, Malte Tewes, Nicolas Cantale

The anomalous flux ratios between quasar images are suspected of being caused by substructures in lens galaxies. We present new deep and high-resolution H and Ks imaging of the strongly lensed quasar SDSS J0924+0219 obtained using the ESO VLT with adaptive ...

2011

Development of MEMS-based programmable slit mask for Multi-Object Spectroscopy

Nico de Rooij, Michael David Canonica, Wilfried Noell

We are developing MEMS-based programmable reflective slit masks for future generation infrared multi-object spectroscopy (MOS) for space and ground-based telescopes. These devices are composed of monocrystalline silicon micromirrors of size 200 x 100 um(2) ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2010

Inexpensive and fast wafer-scale fabrication of nanohole arrays in thin gold ﬁlms for plasmonics

Jürgen Brugger, Harry Heinzelmann, Mona Julia Katharina Klein, Bernard Wenger, Raphaël Pugin

In this paper, a fast and inexpensive wafer-scale process for the fabrication of arrays of nanoscale holes in thin gold ﬁlms for plasmonics is shown. The process combines nanosphere lithography using spin-coated polystyrene beads with a sputter-etching pro ...

Institute of Physics2010

IV-VI Mid-IR Tunable Lasers and Detectors with External Resonant Cavities

Niels Quack

Wavelength tunable emitters and detectors in the mid-IR wavelength region allow applications including thermal imaging and spectroscopy. Such devices may be realized using a resonant cavity. By mechanically changing the cavity length with MEMS mirror techn ...

2009

A virtual sky with extragalactic HI and CO lines for the Square Kilometre Array (SKA) and the Atacama Large Millimeter/submillimeter Array (ALMA)

Danail Obreschkow

We present a sky simulation of the atomic HI-emission line and the first 10 rotational CO emission lines of molecular gas in galaxies beyond the Milky Way. The simulated sky field has a comoving diameter of 500 Mpc/h; hence, the actual field-of-view depend ...

American Astronomical Society2009

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