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The selection function of the RAVE survey

Wojno, J; Kordopatis, G; Piffl, T; Binney, J; Steinmetz, M; Matijevič, G; Bland-Hawthorn, J; ... Siebert, A; + view all (2017) The selection function of the RAVE survey. Monthly Notices of the Royal Astronomical Society (MNRAS) , 468 (3) 10.1093/mnras/stx606. Green open access

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Abstract

We characterize the selection function of RAVE using 2MASS as our underlying population, which we assume represents all stars which could have potentially been observed. We evaluate the completeness fraction as a function of position, magnitude, and color 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 $4000 \rm K < T_{\rm eff} < 8000 \rm K$ and $0.5 < \rm{log}\,g < 5.0$, RAVE is kinematically and chemically unbiased with respect to expectations from Galaxia.

Type: Article
Title: The selection function of the RAVE survey
Open access status: An open access version is available from UCL Discovery
DOI: 10.1093/mnras/stx606
Publisher version: http://dx.doi.org/10.1093/mnras/stx606
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Methods: data analysis, Galaxy: abundances, Galaxy: fundamental parameters, Galaxy: kinematics and dynamics
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics
URI: https://discovery.ucl.ac.uk/id/eprint/1528515
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