Old Stellar Populations. VI. Absorption-Line

DOI

We present absorption-line strengths on the Lick/IDS line-strength system of 381 galaxies and 38 globular clusters in the 4000--6400 angstrom region. All galaxies were observed at Lick Observatory between 1972 and 1984 with the Cassegrain Image Dissector Scanner spectrograph, making this study one of the largest homogeneous collections of galaxy spectral line data to date. We also present a catalogue of nuclear velocity dispersions used to correct the absorption-line strengths onto the stellar Lick/IDS system. Extensive discussion of both random and systematic errors of the Lick/IDS system is provided. Indices are seen to fall into three families: alpha-element-like indices (including CN, Mg, Na D, and TiO2) that correlate positively with velocity dispersion; Fe-like indices (including Ca, the G band, TiO1, and all Fe indices) that correlate only weakly with velocity dispersion and the alpha indices; and Hbeta which anti-correlates with both velocity dispersion and the alpha indices. C2 4668 seems to be intermediate between the alpha and Fe groups. These groupings probably represent different element abundance families with different nucleosynthesis histories. Introduction: This data base includes line strengths for all galaxies and globular clusters observed as well as 1-D FITS spectra of all published stars, globular clusters, and galaxies observed in this project. There are 957 galaxy and globular spectra and 1052 stellar spectra, which are catalogued in galcat.dat and starcat.dat, respectively. Table 2 from Trager et al. 1998, describing the absorption-line strength index system, is presented in this file for completeness.

Cone search capability for table J/ApJS/116/1/starcat (Catalogue of stellar spectra)

Identifier
DOI http://doi.org/10.26093/cds/vizier.21160001
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJS/116/1
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/116/1
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/116/1
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJS/116/1
Provenance
Creator Trager S.C.; Worthey G.; Faber S.M.; Burstein D.; Gonzalez J.J.
Publisher CDS
Publication Year 1998
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; Galactic and extragalactic Astronomy; Interdisciplinary Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy