J/A+A/636/A85 3748 FGK stars spectroscopic parameters (Sarmento+, 2020)
Derivation of parameters for 3748 FGK stars using H-band spectra from
APOGEE Data Release 14.
Sarmento P., Delgado Mena E., Rojas-Ayala B., Blanco-Cuaresma S.
<Astron. Astrophys. 636, A85 (2020)>
=2020A&A...636A..85S 2020A&A...636A..85S (SIMBAD/NED BibCode)
ADC_Keywords: Stars, F-type ; Stars, G-type ; Stars, K-type ; Abundances
Keywords: stars: fundamental parameters - stars: solar type -
techniques: spectroscopic
Abstract:
The Apache Point Observatory Galactic Evolution Experiment (APOGEE)
has observed the H-band spectra of over 200000 stars with R∼22 000.
The main motivation for this work is to test an alternative method to
the standard APOGEE pipeline (APOGEE Stellar Parameter and Chemical
Abundances Pipeline, ASPCAP) to derive parameters in the near-infrared
(NIR) for FGK dwarfs.
iSpec and Turbospectrum are used to generate synthetic spectra
matching APOGEE observations and to determine the parameters through
chi2 minimization.
We present spectroscopic parameters (Teff, [M/H], logg, vmic) for a
sample of 3748 main-sequence and subgiant FGK stars, obtained from
their APOGEE H-band spectra. We compare our output parameters with the
ones obtained with ASPCAP for the same stellar spectrum, and find that
the values agree within the expected uncertainties. A comparison with
the optical samples, California Planet Survey, HARPS-GTO, and PASTEL
is also available, and median differences below 10K for Teff and
0.2dex for [M/H] are found. Reasons for these differences are
explored. The full H-band line list, the line selection for the
synthesis, and the synthesized spectra are available for download, as
are the calculated parameters and their estimated uncertainties.
Description:
Spectroscopic parameters determined for a sample of 3847 FGK stars
from their APOGEE spectra, using the synthetic spectra method.
Included are line list and line mask used for generation of synthetic
spectra. MARCS.GES models, Turbospectrum code and an iSpec python
shell were used for the synthetic spectra generation.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablec1.dat 87 3748 Full list of parameters
solmask.dat 485 250 Line mask used
(solarmaskfilterednoGe1676lines)
atomline.dat 276 85334 Full line list used
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Byte-by-byte Description of file: tablec1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 18 A18 --- APOGEE APOGEE name (2MHHMMSSss+DDMMSSs) or Name
20- 23 I4 K Teff Effective temperature, iSpec output parameter
25- 28 I4 K e_Teff rms uncertainty on Teff
30- 33 F4.2 [cm/s2] logg Surface gravity, iSpec output parameter
35- 38 F4.2 [cm/s2] e_logg rms uncertainty on logg
40- 43 F4.2 [cm/s2] loggcor Corrected surface gravity
45- 49 F5.2 [-] [M/H] Metallicity, [M/H], iSpec output parameter
51- 54 F4.2 [-] e_[M/H] rms uncertainty on [M/H]
56- 60 F5.2 [-] [Fe/H] Metallicity, [Fe/H], iSpec output parameter
62- 64 F3.1 [-] e_[Fe/H] rms uncertainty on [Fe/H]
66- 69 F4.2 km/s vmic Microturbulent velocity
71- 75 F5.2 km/s vmac Macrotrubulent velocity
77- 81 F5.2 km/s vsini Rotational velocity
83- 87 F5.2 --- chi2 chi2 value
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Byte-by-byte Description of file: solmask.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 A4 --- El Element (element)
6- 14 F9.3 0.1nm lambda Wavelength, in Angstroem (wave_A)
16- 24 F9.4 nm lambda2 Wavelength, in nm (wave_nm)
26- 31 F6.3 [-] loggf Oscillator strength (loggf)
33- 38 F6.4 eV lstate Lower state, in eV (lowerstateeV)
40- 48 F9.3 cm-1 lstate2 Lower state, in cm-1 (lowerstatecm1)
50- 54 F5.1 --- lJ Lower J (lower_j)
56- 62 F7.4 eV upstate Upper stater, in eV (upperstateeV)
64- 72 F9.3 cm-1 upstate2 Upper state, in cm-1 (upperstatecm1)
74- 78 F5.1 --- uJ Upper J (upper_j)
80- 85 F6.1 --- ug Upper g (upper_g)
87- 92 F6.3 --- b_Lande Lower value of Lande parameter interval
(lande_lower)
94- 99 F6.3 --- B_Lande Upper value of Lande parameter interval
(lande_upper)
101-102 A2 --- spttype [99 GA] Spectrum transition type
(spectrumtransitiontype)
104-111 E8.2 --- tsprad 10 to the power of the radiative damping
parameter (turbospectrum_rad)
113-117 F5.3 --- rad Radiative damping parameter (rad)
119-124 F6.3 --- stark Stark damping parameter (stark)
126-131 F6.3 --- Waals van der Waals damping parameter
(format for AO theory) (waals)
133-138 F6.3 --- Waalssg van der Waals damping parameter (classic)
(waalssinglegamma_format)
140-145 F6.3 --- tspdamp Fudge factor (common for the same atomic
number and ion) (turbospectrum_fdamp)
147-151 F5.3 --- spFudge Spectrum fudge factor (spectrumfudgefactor)
153-157 F5.3 0.1nm Depthth Theoretical depth (theoretical_depth)
159-166 F8.3 0.1nm EWth Theoretical equivalent width (theoretical_ew)
168 A1 --- lorbtype [Xdpsx] Lower orbital type
(lowerorbitaltype)
170 A1 --- uorbtype [Xdfpsx] Upper orbital type
(upperorbitaltype)
172 A1 --- Mol [FT] Molecule ? (molecule)
174-175 I2 --- spsi [0/12] Spectrum synthetic isotope
(spectrumsyntheisotope)
177 I1 --- Ion [1] Ion ? (e.g. 0 for neutral lines,
1 for ionized) (ion)
179-185 F7.1 --- spmoogspec Species code:
'atomic number' + '.' + 'ion state - 1'
(spectrummoogspecies)
187-200 F14.8 --- tssppec Species code:
'atomic number' + '.' + 'isotope code'
(turbospectrum_species)
202-208 F7.1 --- Widhtspec Species code:
'atomic number. + '.0' + 'ion state - 1'
(width_species)
210-219 A10 --- Ref Reference code (reference_code)
221 A1 --- spsupp [F/T] Spectrum support (spectrum_support)
223 A1 --- tspsup [T] Turbospectrum support
(turbospectrum_support)
225 A1 --- moogsup [T] Moog support (moog_support)
227 A1 --- widthsup [F/T] Width support (width_support)
229 A1 --- synthsup [F/T] Synthetic support (synthe_support)
231 A1 --- smesup [T] SME support (sme_support)
233-241 F9.4 0.1nm Wavepk Wavelength peak (wave_peak)
243-251 F9.4 0.1nm Wavebase Wavelength base (wave_base)
253-261 F9.4 0.1nm Wavetop Wavelength top (wave_top)
263-267 I5 pix Peak Peak (peak)
269-273 I5 pix Base Base (base)
275-279 I5 pix Top Top (top)
281-285 F5.3 0.1nm Depth Line depth (depth)
287-291 F5.3 --- RDepth Relative depth, in flux units
(relative_depth)
293-301 F9.4 0.1nm Wavebasef Wave base fit (wavebasefit)
303-311 F9.4 0.1nm Wavetopf Wave top fit (wavetopfit)
313-317 I5 pix Basef Base fit (base_fit)
319-323 I5 pix Topf Top fit (top_fit)
325-333 F9.4 --- mu Parameter of the gaussian fit to the line,
mu (mu)
335-340 F6.4 --- sig Parameter of the gaussian fit to the line,
sig (sig)
342-348 F7.4 --- A A parameter (A)
350-354 F5.3 --- Baseline Baseline from where the line fit is adjusted
(baseline)
356-364 F9.4 --- gamma gamma (gamma)
366-371 F6.4 --- e_mu rms uncertainty on mu (mu_err)
373-378 F6.4 --- FWHM FWHM of the line fit (fwhm)
380-386 F7.4 km/s FWHM2 FWHM, in km/s (fwhm_kms)
388-392 I5 --- R R parameter (R)
394-398 F5.3 0.1nm Depthf Depth fit (depth_fit)
400-404 F5.3 --- RDepthf Relative depth fit (relativedepthfit)
406-411 F6.4 --- IntFlux Integrated flux (integrated_flux)
413-417 F5.2 --- EWR Equivalent width reduced (ewr)
419-424 F6.1 0.1nm EW Equivalent width (ew)
426-428 F3.1 0.1nm e_EW rms uncertainty on EW (ew_err)
430-432 F3.1 --- SNR Signal-to-noise ratio (snr)
434-438 F5.3 --- Fluxm Mean flux (mean_flux)
440-444 F5.3 --- Fluxcontm Mean continuum flux (meanfluxcontinuum)
446-451 F6.4 0.1nm dwave Difference wavelength (diff_wavelength)
453-457 F5.3 --- rms rms (rms)
459-464 F6.4 0.1nm twavepk Telluric wave peak (telluricwavepeak)
466-471 F6.4 --- tFWHM Telluric FWHM (telluric_fwhm)
473 I1 --- TR [0] Telluric R (telluric_R)
475-479 F5.3 0.1nm tDepth Telluric depth (telluric_depth)
481 A1 --- Grouped [F] Grouped ? (grouped)
483 A1 --- r_Grouped [F] Refernce for Group (referenceforgroup)
485 A1 --- Discarb [F] Discarded ? (discarded)
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Byte-by-byte Description of file: atomline.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 A4 --- El Element (element)
6- 23 F18.12 0.1nm lambda Wavelength, in Angstroem (wave_A)
25- 42 F18.13 nm lambda2 Wavelength, in nm (wave_nm)
44- 62 F19.16 [-] loggf Oscillator strength (loggf)
64- 70 F7.5 eV lstate Lower state, in eV (lowerstateeV)
72- 81 F10.4 cm-1 lstate2 Lower state, in cm-1 (lowerstatecm1)
83- 87 F5.1 --- lJ Lower J (lower_j)
89- 96 F8.5 eV upstate Upper stater, in eV (upperstateeV)
98-108 F11.5 cm-1 upstate2 Upper state, in cm-1 (upperstatecm1)
110-114 F5.1 --- uJ Upper J (upper_j)
116-121 F6.1 --- ug Upper g (upper_g)
123-127 F5.2 --- b_Lande Lower value of Lande parameter interval
(lande_lower)
129-133 F5.2 --- B_Lande Upper value of Lande parameter interval
(lande_upper)
135-136 A2 --- spttype [99 GAO] Spectrum transition type
(spectrumtransitiontype)
138-149 F12.1 --- tsprad 10 to the power of the radiative damping
parameter (turbospectrum_rad)
151-156 F6.3 --- rad Radiative damping parameter (rad)
158-162 F5.2 --- stark Stark damping parameter (stark)
164-170 F7.3 --- Waals van der Waals damping parameter
(format for AO theory) (waals)
172-177 F6.3 --- Waalssg van der Waals damping parameter (classic)
(waalssinglegamma_format)
179-185 F7.3 --- tspdamp Fudge factor (common for the same atomic
number and ion) (turbospectrum_fdamp)
187-189 F3.1 --- spFudge Spectrun fudge factor (spectrumfudgefactor)
191-195 F5.3 0.1nm Depthth Theoretical depth (theoretical_depth)
197-203 F7.2 0.1nm EWth Theoretical equivalent width (theoretical_ew)
205 A1 --- lorbtype [Xdpsx] Lower orbital type
(lowerorbitaltype)
207 A1 --- uorbtype [Xdfpsx] Upper orbital type
(upperorbitaltype)
209 A1 --- Mol [FT] Molecule ? (molecule)
211-212 I2 --- spsi [0/65] Spectrum synthetic isotope
(spectrumsyntheisotope)
214 I1 --- Ion [1/3] Ion ? (ion)
216-224 F9.1 --- spmoogspec Spectrum moog species (spectrummoogspecies)
226-242 F17.9 --- tssppec Turbospectrun speccies
(turbospectrum_species)
244-253 F10.2 0.1nm Widhtspec Widht species (width_species)
255-264 A10 --- Ref Reference code (reference_code)
266 A1 --- spsupp [F/T] Spectrum support ? (spectrum_support)
268 A1 --- tspsup [F/T] Turbospectrum support ?
(turbospectrum_support)
270 A1 --- moogsup [F/T] Moog support ? (moog_support)
272 A1 --- widthsup [F/T] Width support ? (width_support)
274 A1 --- synthsup [F/T] Synthetic support ? (synthe_support)
276 A1 --- smesup [F/T] SME support ? (sme_support)
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Acknowledgements:
Pedro Sarmento, pedrotksarmento(at)gmail.com
(End) Patricia Vannier [CDS] 11-Apr-2020