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The ESPRI project: astrometric exoplanet search with PRIMA I. Instrument description and performance of first light observations
J. Sahlmann, T. Henning, D. Queloz +42
The ESPRI project relies on the astrometric capabilities offered by the PRIMA facility of the Very Large Telescope Interferometer for the discovery and study of planetary systems.…
Synthetic observations of first hydrostatic cores in collapsing low-mass dense cores II. Simulated ALMA dust emission maps
Benoît Commerçon, François Levrier, Anaëlle J. Maury +2
First hydrostatic cores are predicted by theories of star formation, but their existence has never been demonstrated convincingly by (sub)millimeter observations. Furthermore, the…
The Earliest Phases of Star formation observed with Herschel (EPoS): The dust temperature and density distributions of B68
M. Nielbock, R. Launhardt, J. Steinacker +13
(Abriged) In the framework of the Herschel GTKP "The earliest phases of star formation", we have imaged B68 between 100 and 500 um. Ancillary (sub)mm data, spectral line maps of th…
The Earliest Phases of Star Formation (EPoS): A Herschel Key Program - The precursors to high-mass stars and clusters
Sarah Ragan, Thomas Henning, Oliver Krause +14
(Abridged) We present an overview of the sample of high-mass star and cluster forming regions observed as part of the Earliest Phases of Star Formation (EPoS) Herschel Guaranteed T…
Bayesian analysis of exoplanet and binary orbits
Tim Schulze-Hartung, Ralf Launhardt, Thomas Henning
We introduce BASE (Bayesian astrometric and spectroscopic exoplanet detection and characterisation tool), a novel program for the combined or separate Bayesian analysis of astromet…
Narrow-angle astrometry with PRIMA
J. Sahlmann, D. Ségransan, A. Mérand +16
The Extrasolar Planet Search with PRIMA project (ESPRI) aims at characterising and detecting extrasolar planets by measuring the host star's reflex motion using the narrow-angle as…