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Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/28850
Title: Speckle observations with PISCO in Calern (France): I. Astrometric measurements of visual binaries in 2015-2016
Authors: SCARDIA, Marco
Rivet, Jean-Pierre
Prieur, Jean-Louis
Pansecchi, Luigi
Argyle, Robert W.
Ling, Josefina F.
Aristidi, Eric
ZANUTTA, Alessio 
Vernet, David
Abe, Lyu
Bendjoya, Philippe
Dimur, Cécile
Suárez, Olga
Issue Date: 2019
Journal: ASTRONOMISCHE NACHRICHTEN 
Number: 340
Issue: 8
First Page: 771
Abstract: We present relative astrometric measurements of visual binaries, made in 2015-2016 with the speckle camera pupil interferometry speckle camera and coronagraph (PISCO) at the 1-m Epsilon telescope of the C2PU facility (Observatoire de la Côte d'Azur, Calern site). Our observing list contains orbital couples as well as binaries whose motion is still uncertain. From our 1,233 observations of 1,173 multiple stars, we obtained 1,170 new measurements with angular separations in the range 0″.1 — 8″.2, and an average accuracy of 0″.0078. The mean error on the position angles is 0°.54. Most of the position angles were determined without the usual 180° ambiguity with the application of the direct vector autocorrelation technique and/or by inspection of the long integration files.
URI: http://hdl.handle.net/20.500.12386/28850
URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/asna.201913642
ISSN: 0004-6337
DOI: 10.1002/asna.201913642
Bibcode ADS: 2019AN....340..771S
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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