J/A+A/594/A43 APOGEE/Kepler sample stars abundances (Hawkins+, 2016)
An accurate and self-consistent chemical abundance catalogue for the
APOGEE/Kepler sample.
Hawkins K., Masseron T., Jofre P., Gilmore G., Elsworth Y., Hekker S.
<Astron. Astrophys. 594, A43 (2016)>
=2016A&A...594A..43H 2016A&A...594A..43H (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Abundances ; Spectroscopy
Keywords: stars: abundances - Galaxy: abundances - surveys
Abstract:
The APOGEE survey has obtained high-resolution infrared spectra of
more than 100,000 stars. Deriving chemical abundances patterns of
these stars is paramount to piecing together the structure of the
MilkyWay. While the derived chemical abundances have been shown to be
precise for most stars, some calibration problems have been reported,
in particular for more metal-poor stars.
In this paper, we aim to (1) re-determine the chemical abundances of
the APOGEE+Kepler stellar sample (APOKASC) with an independent
procedure, line list and line selection, and high-quality surface
gravity information from asteroseismology, and (2) extend the
abundance catalogue by including abundances that are not currently
reported in the most recent APOGEE release (DR12).
We fixed the Teff and logg to those determined using spectrophotometric
and asteroseismic techniques, respectively. We made use of the
Brussels Automatic Stellar Parameter (BACCHUS) code to derive the
metallicity and broadening parameters for the APOKASC sample. In
addition, we derived differential abundances with respect to Arcturus.
Description:
cluster.dat contains the stellar parameters and chemical abundances
(including uncertainties) for the Cluster sample.
field.dat contains the stellar parameters and chemical abundances
(including uncertainties) for the main APOKASC sample.
The line-by-line abundance information for each star in the cluster
(clusterl.dat) and APOKASC (fieldl.dat).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
cluster.dat 367 127 The stellar parameters and chemical abundances
for each element and star in the validation
clusters
field.dat 366 1989 The stellar parameters and chemical abundances
for each element and star in the main
APOKASC sample
clusterl.dat 53 7419 The line-by-line abundances for each element and
star in the validation clusters
fieldl.dat 53 124053 The line-by-line abundances for each element and
star in the main APOKASC sample
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
J/AJ/146/133 : SDSS-III APOGEE DR10 stellar parameters (Meszaros+, 2013)
J/AJ/146/156 : APOGEE M-dwarf survey. I. Velocities (Deshpande+, 2013)
J/AJ/149/153 : Abundances of red giants in 10 GC (Meszaros+, 2013)
J/ApJ/794/125 : IN-SYNC. I. APOGEE stellar parameters (Cottaar+, 2014)
J/MNRAS/445/2758 : KIC giants Bayesian distances & extinction (Rodrigues+ 2014)
J/AJ/148/24 : Extinction maps in the bulge from APOGEE (Schultheis+, 2014)
J/ApJS/221/24 : SDSS-III APOGEE H-band spectral line lists (Shetrone+, 2015)
J/AJ/149/7 : SDSS-III/APOGEE. I. Be stars (Chojnowski+, 2015)
Byte-by-byte Description of file (#): cluster.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- Name 2MASS name (2MHHMMSSss+DDMMSSs)
24- 28 A5 --- Cluster Cluster name
31- 36 F6.3 mag Hmag H-band magnitude
39- 43 I5 K Teff ?=- Effective temperature
45- 50 F6.3 [cm/s2] logg ?=- Surface gravity
54- 58 F5.2 [-] [Fe/H] ?=- Metallicity [Fe/H]
63- 66 F4.2 [-] e_[Fe/H] ?=- rms uncertainty on [Fe/H]
68- 74 F7.3 km/s Conv ?=- Convolution parameter
78- 82 F5.3 km/s e_Conv ?=- rms uncertainty on Conv
84- 89 F6.3 km/s vmic ?=- Microtrubulent velocity
91- 96 F6.3 km/s e_vmic ?=- rms uncertainty on vmic
99-104 F6.2 [-] [C/H] ?=- [C/H] abundance
107-111 F5.2 [-] s_[C/H] ?=- Dispersion on [C/H]
115-120 F6.2 [-] [N/H] ?=- [N/H] abundance
123-127 F5.2 [-] s_[N/H] ?=- Dispersion on [N/H]
131-136 F6.2 [-] [O/H] ?=- [O/H] abundance
139-143 F5.2 [-] s_[O/H] ?=- Dispersion on [O/H]
147-152 F6.2 [-] [Na/H] ?=- [Na/H] abundance
155-159 F5.2 [-] s_[Na/H] ?=- Dispersion on [Na/H]
163-168 F6.2 [-] [Mg/H] ?=- [Mg/H] abundance
171-175 F5.2 [-] s_[Mg/H] ?=- Dispersion on Mg/H]
179-184 F6.2 [-] [Al/H] ?=- [Al/H] abundance
187-191 F5.2 [-] s_[Al/H] ?=- Dispersion on [Al/H]
195-200 F6.2 [-] [Si/H] ?=- [Si/H] abundance
203-207 F5.2 [-] s_[Si/H] ?=- Dispersion on [Si/H]
211-216 F6.2 [-] [P/H] ?=- [P/H] abundance
219-223 F5.2 [-] s_[P/H] ?=- Dispersion on [P/H]
227-232 F6.2 [-] [S/H] ?=- [S/H] abundance
235-239 F5.2 [-] s_[S/H] ?=- Dispersion on [S/H]
243-248 F6.2 [-] [K/H] ?=- [K/H] abundance
251-255 F5.2 [-] s_[K/H] ?=- Dispersion on [K/H]
259-264 F6.2 [-] [Ca/H] ?=- [Ca/H] abundance
267-271 F5.2 [-] s_[Ca/H] ?=- Dispersion on [Ca/H]
275-280 F6.2 [-] [Ti/H] ?=- [Ti/H] abundance
283-287 F5.2 [-] s_[Ti/H] ?=- Dispersion on [Ti/H]
291-296 F6.2 [-] [V/H] ?=- [V/H] abundance
299-303 F5.2 [-] s_[V/H] ?=- Dispersion on [V/H]
307-312 F6.2 [-] [Cr/H] ?=- [Cr/H] abundance
315-319 F5.2 [-] s_[Cr/H] ?=- Dispersion on [Cr/H]
323-328 F6.2 [-] [Mn/H] ?=- [Mn/H] abundance
331-335 F5.2 [-] s_[Mn/H] ?=- Dispersion on [Mn/H]
339-344 F6.2 [-] [Co/H] ?=- [Co/H] abundance
347-351 F5.2 [-] s_[Co/H] ?=- Dispersion on [Co/H]
355-360 F6.2 [-] [Ni/H] ?=- [Ni/H] abundance
363-367 F5.2 [-] s_[Ni/H] ?=- Dispersion on [Ni/H]
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Byte-by-byte Description of file (#): field.dat
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Bytes Format Units Label Explanations
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1- 17 A17 --- Name APOGEE name (JHHMMSSss+DDMMSSs)
20- 27 I8 --- KIC KIC identification number
31- 35 F5.3 Msun Mass ?=- Mass
38- 42 I5 K Teff ?=- Effective temperature
44- 49 F6.3 [cm/s2] logg ?=- Surface gravity
53- 57 F5.2 [-] [Fe/H] ?=- Metallicity [Fe/H]
62- 65 F4.2 [-] e_[Fe/H] ?=- rms uncertainty on [Fe/H]
67- 73 F7.3 km/s Conv ?=- Convolution
77- 81 F5.3 km/s e_Conv ?=- rms uncertainty on Conv
83- 88 F6.3 km/s vmic ?=- Microtrubulent velocity
90- 95 F6.3 km/s e_vmic ?=- rms uncertainty on vmic
98-103 F6.2 [-] [C/H] ?=- [C/H] abundance
106-110 F5.2 [-] s_[C/H] ?=- Dispersion on [C/H]
114-119 F6.2 [-] [N/H] ?=- [N/H] abundance
122-126 F5.2 [-] s_[N/H] ?=- Dispersion on [N/H]
130-135 F6.2 [-] [O/H] ?=- [O/H] abundance
138-142 F5.2 [-] s_[O/H] ?=- Dispersion on [O/H]
146-151 F6.2 [-] [Na/H] ?=- [Na/H] abundance
154-158 F5.2 [-] s_[Na/H] ?=- Dispersion on [Na/H]
162-167 F6.2 [-] [Mg/H] ?=- [Mg/H] abundance
170-174 F5.2 [-] s_[Mg/H] ?=- Dispersion on Mg/H]
178-183 F6.2 [-] [Al/H] ?=- [Al/H] abundance
186-190 F5.2 [-] s_[Al/H] ?=- Dispersion on [Al/H]
194-199 F6.2 [-] [Si/H] ?=- [Si/H] abundance
202-206 F5.2 [-] s_[Si/H] ?=- Dispersion on [Si/H]
210-215 F6.2 [-] [P/H] ?=- [P/H] abundance
218-222 F5.2 [-] s_[P/H] ?=- Dispersion on [P/H]
226-231 F6.2 [-] [S/H] ?=- [S/H] abundance
234-238 F5.2 [-] s_[S/H] ?=- Dispersion on [S/H]
242-247 F6.2 [-] [K/H] ?=- [K/H] abundance
250-254 F5.2 [-] s_[K/H] ?=- Dispersion on [K/H]
258-263 F6.2 [-] [Ca/H] ?=- [Ca/H] abundance
266-270 F5.2 [-] s_[Ca/H] ?=- Dispersion on [Ca/H]
274-279 F6.2 [-] [Ti/H] ?=- [Ti/H] abundance
282-286 F5.2 [-] s_[Ti/H] ?=- Dispersion on [Ti/H]
290-295 F6.2 [-] [V/H] ?=- [V/H] abundance
298-302 F5.2 [-] s_[V/H] ?=- Dispersion on [V/H]
306-311 F6.2 [-] [Cr/H] ?=- [Cr/H] abundance
314-318 F5.2 [-] s_[Cr/H] ?=- Dispersion on [Cr/H]
322-327 F6.2 [-] [Mn/H] ?=- [Mn/H] abundance
330-334 F5.2 [-] s_[Mn/H] ?=- Dispersion on [Mn/H]
338-343 F6.2 [-] [Co/H] ?=- [Co/H] abundance
346-350 F5.2 [-] s_[Co/H] ?=- Dispersion on [Co/H]
354-359 F6.2 [-] [Ni/H] ?=- [Ni/H] abundance
362-366 F5.2 [-] s_[Ni/H] ?=- Dispersion on [Ni/H]
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Byte-by-byte Description of file (#): clusterl.dat fieldl.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- Name APOGEE/2MASS name
23- 24 A2 --- El Element
29- 35 F7.1 0.1nm lambda Wavelength of line
40- 44 F5.3 --- logA The best fit (chi2) abundance derived
for that line
48- 53 F6.3 --- s_logA The method-to-method scatter in the abundance
derived for that line
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Acknowledgements:
Keith Hawkins, khawkins(at)ast.cam.ac.uk
Institute of Astronomy, University of Cambridge
(End) Keith Hawkins [Cambridge Univ.], Patricia Vannier [CDS] 02-Aug-2016