We report on initial results from the first phase of Exercise #1 of the asteroFLAG hare and hounds. The asteroFLAG group is helping to prepare for the...
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PublicationAsteroFLAG: First results from hare-and-hounds Exercise #1
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PublicationAsteroseismology of solar-type stars with Kepler: III. Ground-based data
We report on the ground-based follow-up program of spectroscopic and photometric observations of solar-like asteroseismic targets for the Kepler space mission...
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PublicationChronos: A NIR spectroscopic galaxy survey to probe the most fundamental stages of galaxy evolution
We propose a dedicated, ultra-deep spectroscopic survey in the near infrared (NIR), that will target a mass-limited sample of galaxies during two of the most...
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PublicationEuclid preparation. I. The Euclid Wide Survey
Euclid is a mission of the European Space Agency that is designed to constrain the properties of dark energy and gravity via weak gravitational lensing and...
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PublicationEuclid preparation. XVI. Exploring the ultra-low surface brightness Universe with Euclid/VIS
Context. While Euclid is an ESA mission specifically designed to investigate the nature of dark energy and dark matter, the planned unprecedented combination of...
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PublicationEuclid preparation. XVIII. The NISP photometric system
Euclid will be the first space mission to survey most of the extragalactic sky in the 0.95-2.02 µm range, to a 5 σ point-source median depth of 24.4 AB mag...
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PublicationEuclid: Constraining dark energy coupled to electromagnetism using astrophysical and laboratory data
In physically realistic, scalar-field-based dynamical dark energy models (including, e.g., quintessence), one naturally expects the scalar field to couple to...
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PublicationGaia Data Release 2. Calibration and mitigation of electronic offset effects in the data
Context. The European Space Agency's Gaia satellite was launched into orbit around L2 in December 2013. This ambitious mission has strict requirements on...
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PublicationGaia Data Release 2. Gaia Radial Velocity Spectrometer
This paper presents the specification, design, and development of the Radial Velocity Spectrometer (RVS) on the European Space Agency's Gaia mission. Starting...