High-resolution spectra of Late-type stars Virtual Observatory Resource

Authors
  1. Lopez-Santiago J.
  2. Montes D.
  3. Galvez-Ortiz M.C.
  4. Crespo-Chacon I.,Martinez-Arnaiz R.M.
  5. Fernandez-Figueroa M.J.
  6. De Castro E.
  7. Cornide M.
  8. Published by
    CDS
Abstract

* Aims: We present a compilation of spectroscopic data from a survey of 144 chromospherically active young stars in the solar neighborhood which may be used to investigate different aspects of the formation and evolution of the solar neighborhood in terms of kinematics and stellar formation history. The data have already been used by us in several studies. With this paper, we make all these data accessible to the scientific community for future studies on different topics. * Methods: We performed spectroscopic observations with echelle spectrographs to cover the entirety of the optical spectral range simultaneously. Standard data reduction was performed with the IRAF echelle package. We applied the spectral subtraction technique to reveal chromospheric emission in the stars of the sample. The equivalent width of chromospheric emission lines was measured in the subtracted spectra and then converted to fluxes using equivalent width--flux relationships. Radial and rotational velocities were determined by the cross-correlation technique. Kinematics, equivalent widths of the lithium line 6707.8{AA} and spectral types were also determined. * Results: A catalog of spectroscopic data is compiled: radial and rotational velocities, space motion, equivalent widths of optical chromospheric activity indicators from Ca II H & K to the calcium infrared triplet and the lithium line in 6708{AA}. Fluxes in the chromospheric emission lines and R'_HK are also determined for each observation of star in the sample. We used these data to investigate the emission levels of our stars. The study of the H{alpha} emission line revealed the presence of two different populations of chromospheric emitters in the sample, clearly separated in the log(F_H{alpha}_/F_bol_)-(V-J) diagram. The dichotomy may be associated with the age of the stars.

Keywords
  1. surveys
  2. late-type-stars
  3. line-intensities
  4. radial-velocity
Bibliographic source Bibcode
2010A&A...514A..97L
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/514/A97
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/514/A97
Document Object Identifer DOI
doi:10.26093/cds/vizier.35140097

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/514/A97
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/514/A97
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/514/A97
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/A+A/514/A97/tablea1?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/514/A97/tablea1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/514/A97/tablea1?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/514/A97/stars?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/514/A97/stars?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/514/A97/stars?
Web browser access HTML
https://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/514/A97

History

2010-05-28T10:25:07Z
Resource record created
2010-05-28T10:25:07Z
Created
2018-01-08T14:09:23Z
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