J/A+A/566/A98 The Gaia Benchmark Stars - Library (Blanco-Cuaresma+, 2014)
The Gaia FGK benchmark stars. High resolution spectral library.
Blanco-Cuaresma S., Soubiran C., Jofre P., Heiter U.
<Astron. Astrophys. 566, A98 (2014)>
=2014A&A...566A..98B 2014A&A...566A..98B
ADC_Keywords: Atlases ; Spectroscopy ; Stars, normal
Keywords: stars: atmospheres - stars: abundances - Galaxy: general -
galaxies: stellar content
Abstract:
An increasing number of high-resolution stellar spectra is available
today thanks to many past and ongoing spectroscopic surveys.
Consequently, numerous methods have been developed to perform an
automatic spectral analysis on a massive amount of data. When
reviewing published results, biases arise and they need to be
addressed and minimized.
We are providing a homogeneous library with a common set of
calibration stars (known as the Gaia FGK benchmark stars) that will
allow us to assess stellar analysis methods and calibrate
spectroscopic surveys.
High-resolution and signal-to-noise spectra were compiled from
different instruments. We developed an automatic process to homogenize
the observed data and assess the quality of the resulting library.
Description:
We built a high-quality library that will facilitate the assessment of
spectral analyses and the calibration of present and future
spectroscopic surveys. The automation of the process minimizes the
human subjectivity and ensures reproducibility. Additionally, it
allows us to quickly adapt the library to specific needs that can
arise from future spectroscopic analyses.
* Please, make sure you are using the latest version of the library by
checking the author's website: http://www.blancocuaresma.com/s/
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 83 78 List of FITS spectra for 33 stars + the Sun
fits/* . 4 Subdirectories with individual FITS spectra
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See also:
III/281 : Gaia FGK benchmark stars v2.1 (Jofre+, 2018)
J/A+A/564/A133 : Gaia FGK benchmark stars: metallicity (Jofre+, 2014)
J/A+A/582/A81 : Gaia FGK benchmark stars: abundances (Jofre+, 2015)
J/A+A/592/A70 : Gaia FGK stars: low-metallicities candidates (Hawkins+, 2016)
Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- FileName Name for data files (1)
15- 25 A11 --- Star Star name
27- 34 A8 --- Origin Spectra's origins
36- 45 A10 "Y-M-D" ObsDate Observation date
47- 63 A17 --- SpType MK spectral type (2)
65- 83 A19 --- r_SpType Reference bibcode for SpType
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Note (1): The fits files are stored in the fits directory, which contains four
subdirectories:
orig = Original resolution and not continuum normalized
orig70000 = Homogeneous resolution of 70000 and not continuum normalized
norm = Original resolution and continuum normalized
norm70000 = Homogeneous resolution of 70000 and continuum normalized
Note (2): Spectral types kindly supplied by Eric Mamajek, Rochester University
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Acknowledgements:
Sergi Blanco-Cuaresma, blanco(at)obs.u-bordeaux1.fr
References:
Heiter et al., Paper I 2015A&A...582A..49H 2015A&A...582A..49H
Blanco-Cuaresma et al., Paper II 2014A&A...566A..98B 2014A&A...566A..98B, Cat. J/A+A/566/A98
Jofre et al., Paper III 2014A&A...564A.133J 2014A&A...564A.133J, Cat. J/A+A/564/A133
Jofre et al., Paper IV 2015A&A...582A..81J 2015A&A...582A..81J, Cat. J/A+A/582/A81
Hawkins et al., Paper V 2016A&A...592A..70H 2016A&A...592A..70H, Cat. J/A+A/592/A70
Jofre et al., 2017A&A...601A..38J 2017A&A...601A..38J
(End) Patricia Vannier [CDS] 07-May-2014