3748 FGK stars spectroscopic parameters Virtual Observatory Resource

Authors
  1. Sarmento P.
  2. Delgado Mena E.
  3. Rojas-Ayala B.
  4. Blanco-Cuaresma S.
  5. Published by
    CDS
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 chi^2^ minimization. We present spectroscopic parameters (Teff, [M/H], logg, v_mic_) 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.

Keywords
  1. f-stars
  2. chemical-abundances
Bibliographic source Bibcode
2020A&A...636A..85S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/636/A85
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/636/A85
Document Object Identifer DOI
doi:10.26093/cds/vizier.36360085

Access

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http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/636/A85
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/636/A85
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/636/A85
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Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
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https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/636/A85/tablec1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/636/A85/tablec1?

History

2020-04-24T07:21:46Z
Resource record created
2020-04-24T07:21:46Z
Created
2023-02-04T16:28:32Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr