Table · dataset · 2017
gamma Dor stars spectroscopic survey
Listed in IVOA Registry (Virtual Observatory)
We present a spectroscopic survey of known and candidate {gamma} Doradus stars.
Description
The high-resolution, high signal-to-noise spectra of 52 objects were collected by five different spectrographs. The spectral classification, atmospheric parameters (T_eff_, logg, {xi}), vsini and chemical composition of the stars were derived.
The stellar spectral and luminosity classes were found between G0-A7 and IV-V, respectively. The initial values for T_eff_ and logg were determined from the photometric indices and spectral energy distribution. Those parameters were improved by the analysis of hydrogen lines.
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The final values of T_eff_, logg and {xi} were derived from the iron lines analysis. The T_eff_ values were found between 6000K and 7900K, while log g values range from 3.8 to 4.5dex. Chemical abundances and vsin i values were derived by the spectrum synthesis method.
The vsini values were found between 5 and 240km/s. The chemical abundance pattern of {gamma} Doradus stars were compared with the pattern of non-pulsating stars. It turned out that there is no significant difference in abundance patterns between these two groups.
Additionally, the relations between the atmospheric parameters and the pulsation quantities were checked. A strong correlation between the vsini and the pulsation periods of {gamma} Doradus variables was obtained. The accurate positions of the analysed stars in the Hertzsprung-Russell diagram have been shown.
Most of our objects are located inside or close to the blue edge of the theoretical instability strip of {gamma} Doradus.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/458/2307 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2016MNRAS.458.2307K ui.adsabs.harvard.edu/abs/2016MNRAS.458.2307K ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/mnras/458/2307 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Astronomical sciences 71%
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/mnras/458/2307 | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].anzsrc:group:5101 | enrichment · IVOA Registry | taxonomy-embedding@1.1.0 | title+keywords+description (71%) |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |