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The selection function of the RAVE survey

Wojno, Jennifer ; Kordopatis, Georges ; Piffl, Tilmann ; Binney, James ; Steinmetz, Matthias ; Matijevič, Gal ; Bland-Hawthorn, Joss ; Sharma, Sanjib ; McMillan, Paul LU and Watson, Fred , et al. (2017) In Monthly Notices of the Royal Astronomical Society 468(3). p.3368-3380
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... (More)

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.

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publication status
published
subject
keywords
Galaxy: abundances, Galaxy: fundamental parameters, Galaxy: kinematics and dynamics, Methods: data analysis
in
Monthly Notices of the Royal Astronomical Society
volume
468
issue
3
pages
13 pages
publisher
Oxford University Press
external identifiers
  • scopus:85021721311
ISSN
0035-8711
DOI
10.1093/mnras/stx606
language
English
LU publication?
yes
id
67f790f2-5744-4211-9908-cc9af1da5eb9
date added to LUP
2019-04-29 13:35:22
date last changed
2020-04-07 05:22:33
@article{67f790f2-5744-4211-9908-cc9af1da5eb9,
  abstract     = {<p>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 &lt; T<sub>eff</sub> &lt; 8000K and 0.5 &lt; log g &lt; 5.0, RAVE is kinematically and chemically unbiased with respect to expectations from GALAXIA.</p>},
  author       = {Wojno, Jennifer and Kordopatis, Georges and Piffl, Tilmann and Binney, James and Steinmetz, Matthias and Matijevič, Gal and Bland-Hawthorn, Joss and Sharma, Sanjib and McMillan, Paul and Watson, Fred and Reid, Warren and Kunder, Andrea and Enke, Harry and Grebel, Eva K. and Seabroke, George and Wyse, Rosemary F.G. and Zwitter, Tomaž and Bienaymé, Olivier and Freeman, Kenneth C. and Gibson, Brad K. and Gilmore, Gerry and Helmi, Amina and Munari, Ulisse and Navarro, Julio F. and Parker, Quentin A. and Siebert, Arnaud},
  issn         = {0035-8711},
  language     = {eng},
  month        = {01},
  number       = {3},
  pages        = {3368--3380},
  publisher    = {Oxford University Press},
  series       = {Monthly Notices of the Royal Astronomical Society},
  title        = {The selection function of the RAVE survey},
  url          = {http://dx.doi.org/10.1093/mnras/stx606},
  doi          = {10.1093/mnras/stx606},
  volume       = {468},
  year         = {2017},
}