Catalogue of dual-field interferometric binary calibrators
Astronomy and Astrophysics, vol. 687, pp. A248
Abstract
Context. Dual-field interferometric observations with VLTI/GRAVITY sometimes require the use of a binary calibrator. This is a binary star whose individual components remain unresolved by the interferometer, with a separation between 400 and 2000 mas for observations with the Unit Telescopes (UTs), or 1200–3000 mas for the Auxiliary Telescopes (ATs). The separation vector also needs to be predictable to within 10 mas for a proper pointing of the instrument. Aims. No list of properly vetted calibrators was available so far for dual-field observations with VLTI/GRAVITY on the UTs. Our objective is to compile such a list and make it available to the community. Methods. We identified a list of candidates from the Washington Double Star (WDS) catalogue, all with appropriate separations and brightness, scattered over the southern sky. We observed them as part of a dedicated calibration programme, determined whether these objects were true binaries (excluding higher multiplicities resolved interferometrically, but unseen by imaging), and extracted measurements of the separation vectors. We combined these new measurements with those available in the WDS to determine updated orbital parameters for all our vetted calibrators. Results. We compiled a list of 13 vetted binary calibrators for observations with VLTI/GRAVITY on the UTs, and we provide orbital estimates and astrometric predictions for each of them. We show that our list guarantees that there are always two binary calibrators at least at an airmass < 2 in the sky over the Paranal observatory at any point in time. Conclusions. Any principal investigator wishing to use the dual-field mode of VLTI/GRAVITY with the UTs can now refer to this list to select an appropriate calibrator. We encourage the use of whereistheplanet to predict the astrometry of these calibrators, which seamlessly integrates with p2Gravity for VLTI/GRAVITY dual-field observing material preparation.
Authors 98
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Affiliation as printed
Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
Kavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
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Centre National de la Recherche Scientifique · European Southern Observatory · Observatoire de Paris · Sorbonne Université · Laboratoire d’études spatiales et d’instrumentation en astrophysique
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European Southern Observatory, Karl-Schwarzschild-Straße 2, 85748 Garching, Germany
LESIA, Observatoire de Paris, PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Janssen, 92195 Meudon, France
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Affiliation as printed
European Southern Observatory, Karl-Schwarzschild-Straße 2, 85748 Garching, Germany
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University of Lisbon · Instituto Superior Técnico · Centro de Astrofísica e Gravitação
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CENTRA – Centro de Astrofísica e Gravitação, IST, Universidade de Lisboa, 1049-001 Lisboa, Portugal
Universidade de Lisboa – Faculdade de Ciências, Campo Grande, 1749-016 Lisboa, Portugal
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Max Planck Institute for Astronomy
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Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany
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Space Telescope Science Institute · Johns Hopkins University
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Department of Physics & Astronomy, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, USA
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
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Centre National de la Recherche Scientifique · Institut de Planétologie et d'Astrophysique de Grenoble · Université Grenoble Alpes
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Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
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Centre National de la Recherche Scientifique · Institut de Planétologie et d'Astrophysique de Grenoble · Université Grenoble Alpes
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Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
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Centre National de la Recherche Scientifique · Institut de Planétologie et d'Astrophysique de Grenoble · Université Grenoble Alpes
Affiliation as printed
Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
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Affiliation as printed
Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
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Centre National de la Recherche Scientifique · Observatoire de Paris · Sorbonne Université · Laboratoire d’études spatiales et d’instrumentation en astrophysique
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LESIA, Observatoire de Paris, PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Janssen, 92195 Meudon, France
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Centre National de la Recherche Scientifique · Institut de Planétologie et d'Astrophysique de Grenoble · Université Grenoble Alpes
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Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
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Affiliation as printed
European Southern Observatory, Karl-Schwarzschild-Straße 2, 85748 Garching, Germany
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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Max Planck Institute for Astronomy
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Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany
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Centre National de la Recherche Scientifique · Aix-Marseille Université
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Aix Marseille Univ, CNRS, CNES, LAM, Marseille, France
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Centre National de la Recherche Scientifique · Observatoire de Paris · Sorbonne Université · Laboratoire d’études spatiales et d’instrumentation en astrophysique
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LESIA, Observatoire de Paris, PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Janssen, 92195 Meudon, France
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Centre National de la Recherche Scientifique · Université Côte d'Azur · Lagrange Laboratory · Observatoire de la Côte d’Azur
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Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, France
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Affiliation as printed
Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
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Centre National de la Recherche Scientifique · Aix-Marseille Université
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Aix Marseille Univ, CNRS, CNES, LAM, Marseille, France
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STAR Institute, Université de Liège, Allée du Six Août 19c, 4000 Liège, Belgium
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Centre National de la Recherche Scientifique · Observatoire de Paris · Sorbonne Université · Laboratoire d’études spatiales et d’instrumentation en astrophysique
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LESIA, Observatoire de Paris, PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Janssen, 92195 Meudon, France
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Centre National de la Recherche Scientifique · Observatoire de Paris · Sorbonne Université · Laboratoire d’études spatiales et d’instrumentation en astrophysique
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LESIA, Observatoire de Paris, PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Janssen, 92195 Meudon, France
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Leiden University · Leiden Observatory
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Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, The Netherlands
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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Centre National de la Recherche Scientifique · Observatoire de Paris · Sorbonne Université · Laboratoire d’études spatiales et d’instrumentation en astrophysique
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LESIA, Observatoire de Paris, PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Janssen, 92195 Meudon, France
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Joint Institute for Laboratory Astrophysics · University of Colorado Boulder
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Department of Astrophysical & Planetary Sciences, JILA, Duane Physics Bldg., 2000 Colorado Ave, University of Colorado, Boulder, CO 80309, USA
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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Centre National de la Recherche Scientifique · Institut de Planétologie et d'Astrophysique de Grenoble · Université Grenoble Alpes
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Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
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University of Cologne · Max Planck Institute for Radio Astronomy
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Institute of Physics, University of Cologne, Zülpicher Straße 77, 50937 Cologne, Germany
Max Planck Institute for Radio Astronomy, Auf dem Hügel 69, 53121 Bonn, Germany
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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University of Lisbon · Universidade do Porto · Instituto Superior Técnico · Centro de Astrofísica e Gravitação
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CENTRA – Centro de Astrofísica e Gravitação, IST, Universidade de Lisboa, 1049-001 Lisboa, Portugal
Universidade do Porto, Faculdade de Engenharia, Rua Dr. RobertoRua Dr. Roberto Frias, 4200-465 Porto, Portugal
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University College Dublin · Max Planck Institute for Astronomy
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Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany
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Astrophysics Group, Department of Physics & Astronomy, University of Exeter, Stocker Road, Exeter EX4 4QL, UK
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Centre National de la Recherche Scientifique · Observatoire de Paris · Sorbonne Université · Laboratoire d’études spatiales et d’instrumentation en astrophysique
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LESIA, Observatoire de Paris, PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Janssen, 92195 Meudon, France
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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Space Telescope Science Institute
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Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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European Southern Observatory, Casilla 19001, Santiago 19, Chile
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Centre National de la Recherche Scientifique · Observatoire de Paris · European Space Agency · Sorbonne Université · Laboratoire d’études spatiales et d’instrumentation en astrophysique · European Space Research and Technology Centre
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Advanced Concepts Team, European Space Agency, TEC-SF, ESTEC, Keplerlaan 1, NL-2201, AZ Noordwijk, The Netherlands
LESIA, Observatoire de Paris, PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Janssen, 92195 Meudon, France
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Max Planck Institute for Astronomy
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Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany
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University of Exeter, Physics Building, Stocker Road, Exeter EX4 4QL, UK
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Max Planck Institute for Astronomy
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Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany
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Centre National de la Recherche Scientifique · Université Côte d'Azur · Lagrange Laboratory · Observatoire de la Côte d’Azur
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Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, France
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Centre National de la Recherche Scientifique · Institut de Planétologie et d'Astrophysique de Grenoble · Université Grenoble Alpes
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Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
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Centre National de la Recherche Scientifique · Institut de Planétologie et d'Astrophysique de Grenoble · Université Grenoble Alpes
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Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
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European Southern Observatory, Karl-Schwarzschild-Straße 2, 85748 Garching, Germany
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Max Planck Institute for Astronomy
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Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany
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Centre National de la Recherche Scientifique · Observatoire de Paris · Sorbonne Université · Laboratoire d’études spatiales et d’instrumentation en astrophysique
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LESIA, Observatoire de Paris, PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Janssen, 92195 Meudon, France
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Max Planck Institute for Astronomy
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Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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Centre National de la Recherche Scientifique · Observatoire de Paris · Sorbonne Université · Institut de Planétologie et d'Astrophysique de Grenoble · Laboratoire d’études spatiales et d’instrumentation en astrophysique · Université Grenoble Alpes
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LESIA, Observatoire de Paris, PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Janssen, 92195 Meudon, France
Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
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Centre National de la Recherche Scientifique · Observatoire de Paris · Sorbonne Université · Laboratoire d’études spatiales et d’instrumentation en astrophysique
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LESIA, Observatoire de Paris, PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Janssen, 92195 Meudon, France
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Centre National de la Recherche Scientifique · Institut de Planétologie et d'Astrophysique de Grenoble · Université Grenoble Alpes
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Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
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Centre National de la Recherche Scientifique · Observatoire de Paris · Sorbonne Université · Laboratoire d’études spatiales et d’instrumentation en astrophysique
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LESIA, Observatoire de Paris, PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Janssen, 92195 Meudon, France
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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Centre National de la Recherche Scientifique · Institut de Planétologie et d'Astrophysique de Grenoble · Université Grenoble Alpes
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Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
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Max Planck Institute for Extraterrestrial Physics
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European Southern Observatory, Karl-Schwarzschild-Straße 2, 85748 Garching, Germany
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Astronomy Department, University of Michigan, Ann Arbor, MI 48109, USA
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University of Bern · Center for Space and Habitability
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Center for Space and Habitability, Universität Bern, Gesellschaftsstrasse 6, 3012 Bern, Switzerland
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Centre National de la Recherche Scientifique · Institut de Planétologie et d'Astrophysique de Grenoble · Université Grenoble Alpes
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Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
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Max Planck Institute for Astronomy
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Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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Institute of Astronomy and Astrophysics, Academia Sinica · Academia Sinica
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Academia Sinica, Institute of Astronomy and Astrophysics, 11F Astronomy-Mathematics Building, NTU/AS campus, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan
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Centre National de la Recherche Scientifique · Observatoire de Paris · Sorbonne Université · Laboratoire d’études spatiales et d’instrumentation en astrophysique
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LESIA, Observatoire de Paris, PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Janssen, 92195 Meudon, France
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Centre National de la Recherche Scientifique · Institut de Planétologie et d'Astrophysique de Grenoble · Université Grenoble Alpes
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Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
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Centre National de la Recherche Scientifique · Observatoire de Paris · Sorbonne Université · Laboratoire d’études spatiales et d’instrumentation en astrophysique
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LESIA, Observatoire de Paris, PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Janssen, 92195 Meudon, France
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Affiliation as printed
European Southern Observatory, Karl-Schwarzschild-Straße 2, 85748 Garching, Germany
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Centre National de la Recherche Scientifique · Institut de Planétologie et d'Astrophysique de Grenoble · Université Grenoble Alpes
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Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
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Space Telescope Science Institute
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Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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Space Telescope Science Institute · European Space Agency
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European Space Agency, ESA Office, Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
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Affiliation as printed
Department of Earth & Planetary Sciences, Johns Hopkins University, Baltimore, MD, USA
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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Affiliation as printed
Department of Earth & Planetary Sciences, Johns Hopkins University, Baltimore, MD, USA
Department of Physics & Astronomy, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, USA
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Excellence Cluster Origins · Max Planck Institute for Astrophysics
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Excellence Cluster ORIGINS, Boltzmannstraße 2, 85748 Garching bei München, Germany
Max Planck Institute for Astrophysics, Karl-Schwarzschild-Str. 1, 85741 Garching, Germany
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Leiden University · Leiden Observatory
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Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, The Netherlands
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Excellence Cluster ORIGINS, Boltzmannstraße 2, 85748 Garching bei München, Germany
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Affiliation as printed
Institute of Physics, University of Cologne, Zülpicher Straße 77, 50937 Cologne, Germany
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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Affiliation as printed
Institute of Physics, University of Cologne, Zülpicher Straße 77, 50937 Cologne, Germany
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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Leiden University · Max Planck Institute for Extraterrestrial Physics · Leiden Observatory
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Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, The Netherlands
Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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Centre National de la Recherche Scientifique · Aix-Marseille Université
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Aix Marseille Univ, CNRS, CNES, LAM, Marseille, France
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Centre National de la Recherche Scientifique · Observatoire de Paris · Sorbonne Université · Laboratoire d’études spatiales et d’instrumentation en astrophysique
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LESIA, Observatoire de Paris, PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Janssen, 92195 Meudon, France
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Max Planck Institute for Radio Astronomy
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Max Planck Institute for Radio Astronomy, Auf dem Hügel 69, 53121 Bonn, Germany
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Affiliation as printed
Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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Affiliation as printed
European Southern Observatory, Karl-Schwarzschild-Straße 2, 85748 Garching, Germany
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Affiliation as printed
European Southern Observatory, Karl-Schwarzschild-Straße 2, 85748 Garching, Germany
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Max Planck Institute for Extraterrestrial Physics
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Max Planck Institute for extraterrestrial Physics, Giessenbach-straße 1, 85748 Garching, Germany
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