Table · dataset · 2016
K2 rotation periods for 65 Hyades members
Listed in IVOA Registry (Virtual Observatory)
As the closest open cluster to the Sun, the Hyades is an important benchmark for many stellar properties, but its members are also scattered widely over the sky.
Description
Previous studies of stellar rotation in the Hyades relied on targeted observations of single stars or data from shallower all-sky variability surveys. The re-purposed Kepler mission, K2, is the first opportunity to measure rotation periods (P_rot_) for many Hyads simultaneously while also being sensitive to fully convective M dwarf members.
We analyze K2 data for 65 Hyads and present P_rot_ values for 48. Thirty-seven of these are new measurements, including the first Prot measurements for fully convective Hyads. For 9 of the 11 stars with P_rot_ in the literature and this work, the measurements are consistent; we attribute the two discrepant cases to spot evolution.
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Nearly all stars with masses <~0.3M_{sun}_ are rapidly rotating, indicating a change in rotation properties at the boundary to full convection. When confirmed and candidate binaries are removed from the mass-period plane, only three rapid rotators with masses >~0.3M_{sun}_ remain. This is in contrast to previous results showing that the single-valued mass-period sequence for ~600Myr old stars ends at ~0.65M_{sun}_ when binaries are included.
We also find that models of rotational evolution predict faster rotation than is actually observed at ~600Myr for stars <~0.9M_{sun}. The dearth of single rapid rotators more massive than ~0.3M_{sun}_ indicates that magnetic braking is more efficient than previously thought, and that age-rotation studies must account for multiplicity.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/822/47 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2016ApJ...822...47D ui.adsabs.harvard.edu/abs/2016ApJ...822...47D ↗
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/apj/822/47 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Astronomical sciences 72%
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/apj/822/47 | 14 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 (72%) |
| 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 |