10.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR3.4k papers
- Université Grenoble AlpesFR2.3k papers
- Université Joseph FourierFR1.2k papers
- Observatoire de ParisFR928 papers
- European Southern ObservatoryCL889 papers
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- Max Planck Institute for AstronomyDE679 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR623 papers
- Université Paris CitéFR596 papers
- California Institute of TechnologyUS588 papers
- Laboratoire d’études spatiales et d’instrumentation en astrophysiqueFR578 papers
- University of GenevaCH577 papers
20 papers · 2 filters
SF2A Environmental Transition Commission: Towards a desirable future for research in astronomy
Faustine Cantalloube, Camille Noûs
During its annual conference in 2024, the French Society of Astronomy & Astrophysics (SF2A) hosted a special session dedicated to discussing the environmental transition within the…
Experimental tests of the calibration of high precision differential astrometry for exoplanets
Manon Lizzana, Fabien Malbet, Pierre Kern +4
High precision differential Astrometry is the branch of astronomy that evaluates the relative position, distance and motion of celestial objects with respect to the stars present i…
Polarization effects on high contrast imaging: measurements on THD2 Bench
Pierre Baudoz, Celia Desgrange, Raphaël Galicher +1
The spectroscopic study of mature giant planets and low mass planets (Neptune-like, Earth-like) requires instruments capable of achieving very high contrasts ()…
Laboratory characterisation bench for high precision astrometry
Fabrice Pancher, Sebastien Soler, Fabien Malbet +4
High precision differential astrometry assesses the positions, distances, and motions of celestial objects in relation to the stars. The focal plane of such space telescope must be…
"My Earth" Astrophysics and Planets -- a serious game to build low carbon scenarios in the astronomy academic community
Fabien Malbet, Alexandre Santerne, Julien Milli +8
This report summarizes what has happened in the mini-workshops entitled ''My Earth in 180 minutes'' organized during the lunch break at the SF2A 2024 conference in Marseille. The p…
Simplified model(s) of the GRAVITY+ adaptive optics system(s) for performance prediction
Anthony Berdeu, Jean-Baptiste Le Bouquin, Guillaume Mella +13
In the context of the GRAVITY+ upgrade, the adaptive optics (AO) systems of the GRAVITY interferometer are undergoing a major lifting. The current CILAS deformable mirrors (DM, 90…
Action Research in Astronomy and Ecology: The observatory of the night environment in Grenoble
Julien Milli, Merlin Boribon, Fabien Malbet +4
We present an example of low-carbon research activity carried out by astrophysicists and focused on ecology and environmental protection, with direct impacts on territories and soc…
KISS: instrument description and performance
J. F. Macías-Pérez, M. Fernández-Torreiro, A. Catalano +35
Kinetic inductance detectors (KIDs) have been proven as reliable systems for astrophysical observations, especially in the millimetre range. Their compact size enables to optimally…
Photonic chip for visible interferometry: laboratory characterization and comparison with the theoretical model
Manon Lallement, Sylvestre Lacour, Elsa Huby +15
Integrated optics are used to achieve astronomical interferometry inside robust and compact materials, improving the instruments stability and sensitivity. In order to perform diff…
Photonic beam-combiner for visible interferometry with SCExAO/FIRST: laboratory characterization and design optimization
Manon Lallement, Elsa Huby, Sylvestre Lacour +15
Integrated optics are used to achieve astronomical interferometry inside robust and compact materials, improving the instrument's stability and sensitivity. In order to perform dif…
Spectroscopy using a visible photonic lantern at the Subaru telescope: Laboratory characterization and first on-sky demonstration on Ikiiki (α Leo) and `Aua (α Ori)
Sébastien Vievard, Manon Lallement, Sergio Leon-Saval +23
Photonic lanterns are waveguide devices enabling high throughput single mode spectroscopy and high angular resolution. We aim to present the first on-sky demonstration of a photoni…
Challenges in focal plane and telescope calibration for High-Precision Space Astrometry
F. Malbet, M. Lizzana, F. Pancher +10
With sub-microarcsecond angular accuracy, the \theia telescope will be capable of revealing the architectures of nearby exoplanetary systems down to the mass of Earth. This researc…
Numerical simulations for the SAXO+ upgrade: Performance analysis of the adaptive optics system
Charles Goulas, Raphaël Galicher, Fabrice Vidal +16
SPHERE, operating at the VLT since 2014, is currently one of the high-contrast instruments with a higher performance. Its adaptive optics system, known as SAXO, will be upgraded to…
CONCERTO at APEX -- On-sky performance in continuum
W. Hu, A. Beelen, G. Lagache +36
We present the data-processing algorithms and the performance of CONCERTO (CarbON CII line in post-rEionisation and ReionisaTiOn epoch) in continuum by analysing the data from the…
Rotational transitions induced by collisions of HD ions with low energy electrons
O. Motapon, N. Pop, F. Argoubi +6
A series of Multichannel Quantum Defect Theory-based computations have been performed, in order to produce the cross sections of rotational transitions (excitations $N_{i}^{+}-2 \r…
Dissociative recombination of the CH molecular ion at low energy
K. Chakrabarti, J. Zs Mezei, O. Motapon +4
The reactive collisions of the CH molecular ion with electrons is studied in the framework of the multichannel quantum defect theory, taking into account the contribution of th…
Asgard/NOTT: L-band nulling interferometry at the VLTI. II. Warm optical design and injection system
Germain Garreau, Azzurra Bigioli, Romain Laugier +17
Asgard/NOTT (previously Hi-5) is a European Research Council (ERC)-funded project hosted at KU Leuven and a new visitor instrument for the Very Large Telescope Interferometer (VLTI…
A catalogue of dual-field interferometric binary calibrators
M. Nowak, S. Lacour, R. Abuter +97
Dual-field interferometric observations with VLTI/GRAVITY sometimes require the use of a "binary calibrator", a binary star whose individual components remain unresolved by the int…
The case for an all-sky millimetre survey at sub-arcminute resolution
François-Xavier Désert, Martino Calvo, Andrea Catalano +6
There are several new projects to survey the sky with millimetre eyes, the biggest being Simons Observatory and CMB-S4, in the Southern Hemisphere. The NIKA2 collaboration has acqu…
Single-mode waveguides for GRAVITY II. Single-mode fibers and Fiber Control Unit
G. Perrin, L. Jocou, K. Perraut +22
The 2nd generation VLTI instrument GRAVITY is a two-field infrared interferometer operating in the K band between 1.97 and 2.43 m with either the four 8 m or the four 1.8 m tele…