10.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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- University of GenevaCH577 papers
27 papers · 2 filters
NectarCAM, a camera for the medium sized telescopes of the Cherenkov Telescope Array
J-F. Glicenstein, M. Shayduk
NectarCAM is a camera proposed for the medium-sized telescopes of the Cherenkov Telescope Array (CTA) which covers the core energy range of ~100 GeV to ~30 TeV. It has a modular de…
Analysis of antenna position measurements and weather station network data during the ALMA Long Baseline Campaign of 2015
Todd R. Hunter, Robert Lucas, Dominique Broguiere +5
In a radio interferometer, the determination of geometrical antenna positions relies on accurate calibration of the dry and wet delay of the atmosphere above each antenna. For the…
Theory of Gas Phase Scattering and Reactivity for Astrochemistry
Laurent Wiesenfeld, Wing-Fai Thi, Paola Caselli +13
Because of the very peculiar conditions of chemistry in many astrophysical gases (low densities, mostly low temperatures, kinetics-dominated chemical evolution), great efforts have…
SPHERE IRDIS and IFS astrometric strategy and calibration
Anne-Lise Maire, Maud Langlois, Kjetil Dohlen +16
We present the current results of the astrometric characterization of the VLT planet finder SPHERE over 2 years of on-sky operations. We first describe the criteria for the selecti…
Science with MATISSE
S. Wolf, B. Lopez, J. -Ch. Augereau +21
We present an overview of the scientific potential of MATISSE, the Multi Aperture mid-Infrared SpectroScopic Experiment for the Very Large Telescope Interferometer. For this purpos…
A detector interferometric calibration experiment for high precision astrometry
A. Crouzier, F. Malbet, F. Henault +23
Context: Exoplanet science has made staggering progress in the last two decades, due to the relentless exploration of new detection methods and refinement of existing ones. Yet ast…
Polarimetry at millimeter wavelengths with the NIKA camera: calibration and performance
A. Ritacco, N. Ponthieu, A. Catalano +37
Magnetic fields, which play a major role in a large number of astrophysical processes from galactic to cosmological scales, can be traced via observations of dust polarization as d…
Planet Formation Imager (PFI): science vision and key requirements
Stefan Kraus, John D. Monnier, Michael J. Ireland +75
The Planet Formation Imager (PFI) project aims to provide a strong scientific vision for ground-based optical astronomy beyond the upcoming generation of Extremely Large Telescopes…
Astronomical photonics in the context of infrared interferometry and high-resolution spectroscopy
Lucas Labadie, Jean-Philippe Berger, Nick Cvetojevic +9
We review the potential of Astrophotonics, a relatively young field at the interface between photonics and astronomical instrumentation, for spectro-interferometry. We review some…
MATISSE: specifications and expected performances
A. Matter, S. Lagarde, R. G. Petrov +9
MATISSE (Multi AperTure mid-Infrared SpectroScopic Experiment) is the next generation spectro-interferometer at the European Southern Observatory VLTI operating in the spectral ban…
An overview of the mid-infrared spectro-interferometer MATISSE: science, concept, and current status
A. Matter, B. Lopez, P. Antonelli +104
MATISSE is the second-generation mid-infrared spectrograph and imager for the Very Large Telescope Interferometer (VLTI) at Paranal. This new interferometric instrument will allow…
Speckle lifetime in XAO coronagraphic images: temporal evolution of SPHERE coronagraphic images
J. Milli, T. Banas, D. Mouill +11
The major source of noise in high-contrast imaging is the presence of slowly evolving speckles that do not average with time. The temporal stability of the point-spread-function (P…
The numerical simulation tool for the MAORY multiconjugate adaptive optics system
Carmelo Arcidiacono, Laura Schreiber, Giovanni Bregoli +14
The Multiconjugate Adaptive Optics RelaY (MAORY) is and Adaptive Optics module to be mounted on the ESO European-Extremely Large Telescope (E-ELT). It is a hybrid Natural and Laser…
The latest results from DICE (Detector Interferometric Calibration Experiment)
A. Crouzier, F. Malbet, F. Henault +23
Theia is an astrometric mission proposed to ESA in 2014 for which one of the scientific objectives is detecting Earth-like exoplanets in the habitable zone of nearby solar-type sta…
Collimating Slicer for Optical Integral Field Spectroscopy
Florence Laurent, Francois Henault
Integral Field Spectroscopy (IFS) is a technique that gives simultaneously the spectrum of each spatial sampling element in a given object field. It is a powerful tool which rearra…
MICADO: first light imager for the E-ELT
R. Davies, J. Schubert, M. Hartl +80
MICADO will equip the E-ELT with a first light capability for diffraction limited imaging at near-infrared wavelengths. The instrument's observing modes focus on various flavours o…
Experimental demonstration of a crossed cubes nuller for coronagraphy and interferometry
Francois Henault, Brahim Arezki, Guillaume Bourdarot +1
In this communication we present the first experimental results obtained on the Crossed-cubes nuller (CCN), that is a new type of Achromatic phase shifter (APS) based on a pair of…
Analysis of nulling phase functions suitable to image plane coronagraphy
Francois Henault, Alexis Carlotti, Christophe Verinaud
Coronagraphy is a very efficient technique for identifying and characterizing extra-solar planets orbiting in the habitable zone of their parent star, especially when used in a spa…
Concepts of Classification and Taxonomy. Phylogenetic Classification
Didier Fraix-Burnet
Phylogenetic approaches to classification have been heavily developed in biology by bioinformaticians. But these techniques have applications in other fields, in particular in ling…
Clustering with phylogenetic tools in astrophysics
Didier Fraix-Burnet
Phylogenetic approaches are finding more and more applications outside the field of biology. Astrophysics is no exception since an overwhelming amount of multivariate data has appe…
The NIKA2 commissioning campaign: performance and first results
A. Catalano, R. Adam, P. Ade +39
The New IRAM KID Array 2 (NIKA 2) is a dual-band camera operating with three frequency-multiplexed kilopixels arrays of Lumped Element Kinetic Inductance Detectors (LEKID) cooled a…
Experience with wavefront sensor and deformable mirror interfaces for wide-field adaptive optics systems
A. G. Basden, D. Atkinson, N. A. Bharmal +56
Recent advances in adaptive optics (AO) have led to the implementation of wide field-of-view AO systems. A number of wide-field AO systems are also planned for the forthcoming Extr…
NIKA 2: next-generation continuum/polarized camera at the IRAM 30 m telescope and its prototype
A. Ritacco, R. Adam, A. Adane +36
NIKA 2 (New Instrument of Kids Array) is a next generation continuum and polarized instrument successfully installed in October 2015 at the IRAM 30 m telescope on Pico-Veleta (Gran…
Shaped Pupil Lyot Coronagraphs: High-Contrast Solutions for Restricted Focal Planes
Neil T. Zimmerman, A J Eldorado Riggs, N. Jeremy Kasdin +2
Coronagraphs of the apodized pupil and shaped pupil varieties use the Fraunhofer diffraction properties of amplitude masks to create regions of high contrast in the vicinity of a t…