Nearby main-sequence stars abundances Virtual Observatory Resource

Authors
  1. Lopez-Valdivia R.
  2. Adame L.
  3. Zagala Lagunas E.
  4. Roman-Zuniga C.G.,Hernandez J.
  5. Sanchez E.
  6. Fernandez-Trincado J.G.
  7. Carigi L.
  8. Kounkel M.,Lane R.R.
  9. Stassun K.G.
  10. Villanova S.
  11. Published by
    CDS
Abstract

To date, we have access to enormous inventories of stellar spectra that allow the extraction of atmospheric parameters and chemical abundances essential in stellar studies. However, characterizing such a large amount of data is complex and requires a good understanding of the studied object to ensure reliable and homogeneous results. In this study, we present a methodology to measure homogeneously the basic atmospheric parameters and detailed chemical abundances of over 1600 thin disk main-sequence stars in the 100pc solar neighborhood, using APOGEE-2 infrared spectra. We employed the code tonalli to determine the atmospheric parameters using a prior on log g. The log g prior in tonalli implies an understanding of the treated population and helps to find physically coherent answers. Our atmospheric parameters agree within the typical uncertainties (100K in Teff, 0.15dex in logg and [M/H]) with previous estimations of ASPCAP and Gaia DR3. We use our temperatures to determine a new infrared color-temperature sequence, in good agreement with previous works, that can be used for any main-sequence star. Additionally, we used the BACCHUS code to determine the abundances of Mg, Al, Si, Ca, and Fe in our sample. The five elements (Mg, Al, Si, Ca, Fe) studied have an abundance distribution centered around slightly sub-solar values, in agreement with previous results for the solar neighborhood. The over 1600 main-sequence stars' atmospheric parameters and chemical abundances presented here are useful in follow-up studies of the solar neighborhood or as a training set for data-driven methods.

Keywords
  1. dwarf-stars
  2. chemical-abundances
  3. infrared-astronomy
Bibliographic source Bibcode
2024MNRAS.533..395L
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/533/395
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/533/395

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/533/395
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/533/395
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/533/395
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
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).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/533/395/table5?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/533/395/table5?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/533/395/table5?

History

2024-08-20T09:54:53Z
Resource record created
2024-08-20T08:55:13Z
Updated
2024-08-20T09:54:53Z
Created

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