III/281 Gaia FGK benchmark stars v2.1 (Jofre+, 2018)
Gaia FGK benchmark stars v2.1.
Jofre P., Heiter U., Soubiran C., Tucci Maia M., Worley C., Hawkins K.,
Blanco-Cuaresma S., Rodrigo C.
<Research Notes of the AAS, Vol. 2, 152 (2018),
https://doi.org/10.3847/2515-5172/aadc61>
=2018yCat.3281....0J 2018yCat.3281....0J
=2018RNAAS...2..152J 2018RNAAS...2..152J
ADC_Keywords: Spectroscopy ; Stars, standard ; Abundances, [Fe/H] ;
Fundamental catalog
Keywords: stars: fundamental parameters - techniques: spectroscopic - standards
Abstract:
In this era of large spectroscopic surveys of stars of the Milky Way,
pipelines need to be tested and validated against a set of well-known
stars. The Gaia FGK benchmark stars (GBS) are among the preferred
samples of reference stars. They consist of a small but carefully
selected sample of stars whose parameters are derived consistently and
homogeneously. A series of papers has been published that discuss the
definition and evolution of the sample of GBS. Here we summarise this
work and provide our current list of stars with associated parameters
which are recommended for validation and calibration purposes for
stellar surveys.
Description:
Updated stellar parameters of the Gaia FGK benchmark stars (GBS).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
gbs.dat 350 36 Stellar parameters of the GBS stars
--------------------------------------------------------------------------------
See also:
J/A+A/564/A133 : Gaia FGK benchmark stars: metallicity (Jofre+, 2014)
J/A+A/566/A98 : The Gaia Benchmark Stars - Library (Blanco-Cuaresma+, 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: gbs.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 ---- StarID1 Star name
11- 18 A8 ---- StarID2 ?=-99 HD number (HDNNNNNN) (III/135)
20- 28 A9 ---- StarID3 ?=-99 HIP number (HIPNNNNNN) (I/239)
30- 48 I19 ---- StarID4 ?=-99 Gaia DR2 Source ID (I/345)
50- 51 I2 h RAh ? Right ascension (J2000)
53- 54 I2 min RAm ? Right ascension (J2000)
56- 61 F6.3 s RAs ? Rigth ascension (J2000)
63 A1 ---- DE- Declination sign (J2000)
64- 65 I2 deg DEd ? Declination (J2000)
67- 68 I2 arcmin DEm ? Declination (J2000)
70- 74 F5.2 arcsec DEs ? Declination (J2000)
76- 90 A15 ---- SpType ?=-99 MK spectral type
92- 95 I4 K Teff ?=9999 Effective temperature (1)
97- 99 I3 K e_Teff ?=999 Uncertainty of effective
temperature
101-104 F4.2 [cm/s2] logg ?=9.99 Surface gravity (2)
106-109 F4.2 [cm/s2] e_logg ?=9.99 Uncertainty of surface gravity
111-115 F5.2 [Sun] [Fe/H] Iron abundance relative to the Sun (3)
117-120 F4.2 [Sun] e_[Fe/H] Uncertainty of [Fe/H]
122-125 F4.2 [-] logeps(Mg) ?=9.99 Abundance of magnesium (4)
127-130 F4.2 [-] e_logeps(Mg) ?=9.99 Uncertainty of magnesium
132-135 F4.2 [-] logeps(Si) ?=9.99 Abundance of silicon
137-140 F4.2 [-] e_logeps(Si) ?=9.99 Uncertainty of silicon
142-145 F4.2 [-] logeps(Ca) ?=9.99 Abundance of calcium
147-150 F4.2 [-] e_logeps(Ca) ?=9.99 Uncertainty of calcium
152-155 F4.2 [-] logeps(Ti) ?=9.99 Abundance of titanium
157-160 F4.2 [-] e_logeps(Ti) ?=9.99 Uncertainty of titanium
162-165 F4.2 [-] logeps(Sc) ?=9.99 Abundance of scandium
167-170 F4.2 [-] e_logeps(Sc) ?=9.99 Uncertainty of scandium
172-175 F4.2 [-] logeps(V) ?=9.99 Abundance of vanadium
177-180 F4.2 [-] e_logeps(V) ?=9.99 Uncertainty of vanadium
182-185 F4.2 [-] logeps(Cr) ?=9.99 Abundance of chromium
187-190 F4.2 [-] e_logeps(Cr) ?=9.99 Uncertainty of chromium
192-195 F4.2 [-] logeps(Mn) ?=9.99 Abundance of manganese
197-200 F4.2 [-] e_logeps(Mn) ?=9.99 Uncertainty of manganese
202-205 F4.2 [-] logeps(Co) ?=9.99 Abundance of cobalt
207-210 F4.2 [-] e_logeps(Co) ?=9.99 Uncertainty of cobalt
212-215 F4.2 [-] logeps(Ni) ?=9.99 Abundance of nickel
217-220 F4.2 [-] e_logeps(Ni) ?=9.99 Uncertainty of nickel
222-227 F6.3 [Sun] [Mg/H] ?=9.999 Magnesium relative to the Sun (5)
229-233 F5.3 [Sun] e_[Mg/H] ?=9.999 Uncertainty of [Mg/H]
235-240 F6.3 [Sun] [Si/H] ?=9.999 Silicon relative to the Sun
242-246 F5.3 [Sun] e_[Si/H] ?=9.999 Uncertainty of [Si/H]
248-253 F6.3 [Sun] [Ca/H] ?=9.999 Calcium relative to the Sun
255-259 F5.3 [Sun] e_[Ca/H] ?=9.999 Uncertainty of [Ca/H]
261-266 F6.3 [Sun] [Ti/H] ?=9.999 Titanium relative to the Sun
268-272 F5.3 [Sun] e_[Ti/H] ?=9.999 Uncertainty of [Ti/H]
274-279 F6.3 [Sun] [Sc/H] ?=9.999 Scandium relative to the Sun
281-285 F5.3 [Sun] e_[Sc/H] ?=9.999 Uncertainty of [Sc/H]
287-292 F6.3 [Sun] [V/H] ?=9.999 Vanadium relative to the Sun
294-298 F5.3 [Sun] e_[V/H] ?=9.999 Uncertainty of [V/H]
300-305 F6.3 [Sun] [Cr/H] ?=9.999 Chromium relative to the Sun
307-311 F5.3 [Sun] e_[Cr/H] ?=9.999 Uncertainty of [Cr/H]
313-318 F6.3 [Sun] [Mn/H] ?=9.999 Manganese relative to the Sun
320-324 F5.3 [Sun] e_[Mn/H] ?=9.999 Uncertainty of [Mn/H]
326-331 F6.3 [Sun] [Co/H] ?=9.999 Cobalt relative to the Sun
333-337 F5.3 [Sun] e_[Co/H] ?=9.999 Uncertainty of [Co/H]
339-344 F6.3 [Sun] [Ni/H] ?=9.999 Nickel relative to the Sun
346-350 F5.3 [Sun] e_[Ni/H] ?=9.999 Uncertainty of [Ni/H]
--------------------------------------------------------------------------------
Note (1): When the stellar parameter or chemical abundance were not determined
it was set to -99.
From Table 10 of Heiter et al. (2015A&A...582A..49H 2015A&A...582A..49H).
The Teff of HD102200, HD106038, HD175305, HD201891 and HD298986 are from
Table 3 of Hawkins et al. (2016A&A...592A..70H 2016A&A...592A..70H).
Note (2): From Table 10 of Heiter et al. (2015A&A...582A..49H 2015A&A...582A..49H).
The logg of HD102200, HD106038, HD175305, HD201891 and HD298986 are from
Table 3 of Hawkins et al. (2016A&A...592A..70H 2016A&A...592A..70H).
Note (3): From Table 3 of Jofre et al. 2014 (A&A,564, 133).
For HD102200, HD106038, HD175305, HD201891 and HD298986 the uncertainties
of [Fe/H] were calculated by quadratically summing all sigma and Delta
columns in Table 5 of Hawkins et al. (2016A&A...592A..70H 2016A&A...592A..70H).
Note (4): logeps = logarithm of number abundance relative to hydrogen + 12.
From Jofre et al. (2015A&A...582A..81J 2015A&A...582A..81J).
Note (5): [X/H] = logarithm of number abundance relative to the Sun.
From Table A1 to A10 of Jofre et al. (2015A&A...582A..81J 2015A&A...582A..81J).
--------------------------------------------------------------------------------
Acknowledgements:
Marcelo Tucci Maia, marcelo.tucci(at)mail.udp.cl
Paula Jofre, paula.jofre(at)mail.udp.cl
Nucleo de Astronomia, Universidad Diego Portales
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) Paula Jofre [Nucleo de Astronomia], Patricia Vannier [CDS] 20-Aug-2018