High-resolution spectra of Late-type stars

DOI
  • 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.

Cone search capability for table J/A+A/514/A97/tablea1 (Spectral-type reference stars and radial velocity standards (marked with *))

Cone search capability for table J/A+A/514/A97/stars (List of studied stars and spectra)

Associated data

Identifier
DOI http://doi.org/10.26093/cds/vizier.35140097
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/A+A/514/A97
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/514/A97
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/514/A97
Related Identifier https://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/514/A97
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/A+A/514/A97
Provenance
Creator Lopez-Santiago J.; Montes D.; Galvez-Ortiz M.C.; Crespo-Chacon I.,Martinez-Arnaiz R.M.; Fernandez-Figueroa M.J.; De Castro E.; Cornide M.
Publisher CDS
Publication Year 2010
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Exoplanet Astronomy; Interdisciplinary Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy