Data · dataset · 2026
The radius and mass of the close solar twin 18 Scorpii derived from asteroseismology and interferometry
Listed in National Center for Atmospheric Research
The growing interest in solar twins is motivated by the possibility of comparing them directly to the Sun.
Description
To carry on this kind of analysis, we need to know their physical characteristics with precision. Our first objective is to use asteroseismology and interferometry on the brightest of them: 18 Sco.
We observed the star during 12 nights with HARPS for seismology and used the PAVO beam-combiner at CHARA for interferometry. An average large frequency separation 134.4 ± 0.3 μHz and angular and linear radiuses of 0.6759 ± 0.0062 mas and 1.010 ± 0.009 Râ were estimated. We used these values to derive the mass of the star, 1.02 ± 0.03 Me.
Links
Get the data
- Publisher page n2t.org/ark:/85065/d7nc61rc ↗
documentation · download · from data ucar edu
Where it is published
- data.ucar.edu /dataset/the-radius-and-mass-of-the-close-solar-twin-18-scorpii… ↗
National Center for Atmospheric Research dataset page
landing page · from data ucar edu
Catalogue records · 1
- CKAN API data.ucar.edu/api/3/action/package_show?id=639618f0-7e5f-4bbe-85bc-bb95bd6f3… ↗
metadata API · from data ucar edu
Topics
- From keywords
- Earth & Environmental Science · Ocean & Atmospheric Science
Provenance · 1 source records, 7 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| National Center for Atmospheric Research | 639618f0-7e5f-4bbe-85bc-bb95bd6f3412 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].local:field:earth-environmental | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| created_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| description | source · data ucar edu | connector:data_ucar_edu@1.0.0 | /notes |
| publication_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| title | source · data ucar edu | connector:data_ucar_edu@1.0.0 | /title |
| updated_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 |