Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/127860
Title: The Gaia spectrophotometric standard stars survey - III. Short-term variability monitoring
Author: Marinoni, S.
Pancino, E.
Altavilla, G.
Bellazzini, M.
Galleti, S.
Tessicini, G.
Valentini, G.
Cocozza, G.
Ragaini, S.
Braga, V.
Bragaglia, A.
Federici, L.
Schuster, W. J.
Carrasco Martinez, Jose Manuel
Castro, A.
Figueras Siñol, Francesca
Jordi i Nebot, Carme
Keywords: Fotometria astronòmica
Estels binaris
Astronomical photometry
Double stars
Issue Date: 11-Nov-2016
Publisher: Royal Astronomical Society
Abstract: We present the results of the short-term constancy monitoring of candidate Gaia Spectrophotometric Standard Stars (SPSS). We obtained time series of typically 1.24 h - with sampling periods from 1-3 min to a few hours, depending on the case - to monitor the constancy of our candidate SPSS down to 10 mmag, as required for the calibration of Gaia photometric data. We monitored 162 out of a total of 212 SPSS candidates. The observing campaign started in 2006 and finished in 2015, using 143 observing nights on nine different instruments covering both hemispheres. Using differential photometry techniques, we built light curves with a typical precision of 4 mmag, depending on the data quality. As a result of our constancy assessment, 150 SPSS candidates were validated against short-term variability, and only 12 were rejected because of variability including some widely used flux standards such as BD+174708, SA 105-448, 1740346, and HD 37725.
Note: Reproducció del document publicat a: https://doi.org/10.1093/mnras/stw1886
It is part of: Monthly Notices of the Royal Astronomical Society, 2016, vol. 462, num. 4, p. 3616-3627
Related resource: https://doi.org/10.1093/mnras/stw1886
URI: http://hdl.handle.net/2445/127860
ISSN: 0035-8711
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))

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