The selection function of the RAVE survey

Jennifer Wojno*, Georges Kordopatis, Tilmann Piffl, James Binney, Matthias Steinmetz, Gal Matijevič, Joss Bland-Hawthorn, Sanjib Sharma, Paul McMillan, Fred Watson, Warren Reid, Andrea Kunder, Harry Enke, Eva K. Grebel, George Seabroke, Rosemary F.G. Wyse, Tomaž Zwitter, Olivier Bienaymé, Kenneth C. Freeman, Brad K. GibsonGerry Gilmore, Amina Helmi, Ulisse Munari, Julio F. Navarro, Quentin A. Parker, Arnaud Siebert

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    27 Citations (Scopus)
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    Abstract

    We characterize the selection function of RAdial Velocity Experiment (RAVE) using 2 Micron All Sky Survey (2MASS) as our underlying population, which we assume represents all stars that could have potentially been observed.We evaluate the completeness fraction as a function of position, magnitude and colour in two ways: first, on a field-by-field basis, and second, in equal-size areas on the sky. Then, we consider the effect of the RAVE stellar parameter pipeline on the final resulting catalogue, which in principle limits the parameter space over which our selection function is valid. Our final selection function is the product of the completeness fraction and the selection function of the pipeline. We then test if the application of the selection function introduces biases in the derived parameters. To do this, we compare a parent mock catalogue generated using GALAXIA with a mock-RAVE catalogue where the selection function of RAVE has been applied. We conclude that for stars brighter than I = 12, between 4000 < Teff < 8000K and 0.5 < log g < 5.0, RAVE is kinematically and chemically unbiased with respect to expectations from GALAXIA.

    Original languageEnglish
    Pages (from-to)3368-3380
    Number of pages13
    JournalMonthly Notices of the Royal Astronomical Society
    Volume468
    Issue number3
    DOIs
    Publication statusPublished - Jul 2017

    Bibliographical note

    Copyright 2017 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. First published in Monthly Notices of the Royal Astronomical Society, 468(3), pp.3368-3380. The original publication is available at https://doi.org/10.1093/mnras/stx606. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

    Keywords

    • Galaxy: abundances
    • Galaxy: fundamental parameters
    • Galaxy: kinematics and dynamics
    • Methods: data analysis

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