← Search

Table · dataset · 2018

APOKASC catalog of KIC dwarfs and subgiants

Listed in IVOA Registry (Virtual Observatory)

We present the first APOKASC catalog of spectroscopic and asteroseismic data for dwarfs and subgiants.

Description

Asteroseismic data for our sample of 415 objects have been obtained by the Kepler mission in short (58.5s) cadence, and light curves span from 30 up to more than 1000 days. The spectroscopic parameters are based on spectra taken as part of the Apache Point Observatory Galactic Evolution Experiment (APOGEE) and correspond to Data Release 13 of the Sloan Digital Sky Survey.

We analyze our data using two independent T_eff_ scales, the spectroscopic values from DR13 and those derived from SDSS griz photometry. We use the differences in our results arising from these choices as a test of systematic temperature uncertainties and find that they can lead to significant differences in the derived stellar properties. Determinations of surface gravity (logg), mean density (<{rho}>), radius (R), mass (M), and age ({tau}) for the whole sample have been carried out by means of (stellar) grid-based modeling.

Read the rest (1 more)

We have thoroughly assessed random and systematic error sources in the spectroscopic and asteroseismic data, as well as in the grid-based modeling determination of the stellar quantities provided in the catalog. We provide stellar properties determined for each of the two T_eff_ scales. The median combined (random and systematic) uncertainties are 2% (0.01dex; logg), 3.4% (<{rho}>), 2.6% (R), 5.1% (M), and 19% ({tau}) for the photometric T_eff_ scale and 2% (logg), 3.5% (<{rho}>), 2.7% (R), 6.3% (M), and 23% ({tau}) for the spectroscopic scale.

Links

Where it is published

Documentation and papers

Catalogue records · 2

Topics

Provenance · 1 source records, 8 field assertions
SourceKeyLast seenRaw
IVOA Registry (Virtual Observatory)ivo://cds.vizier/j/apjs/233/2315 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[field].anzsrc:field:510109enrichment · IVOA Registrytaxonomy-embedding@1.1.0title+keywords+description (80%)
concepts[field].local:field:astronomymapping · IVOA Registryconnector:ivoa_registry@1.0.0
descriptionsource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_description
license_textsource · IVOA Registryconnector:ivoa_registry@1.0.0
publication_datesource · IVOA Registryconnector:ivoa_registry@1.0.0
titlesource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_title
updated_datesource · IVOA Registryconnector:ivoa_registry@1.0.0