Table · dataset · 2025
A search for stellar siblings of TOI-251b syst.
Listed in IVOA Registry (Virtual Observatory)
Young planets (<1Gyr) are helpful for studying the physical processes occurring at the early stage of planet evolution.
Description
TOI-251 b is a recently discovered sub-Neptune orbiting a young G dwarf, which has an imprecise age estimation of 40-320Myr. We select TOI-251 sibling candidates based on kinematics and spatial proximity to TOI-251 and further use the color-magnitude diagram to refine the list and to compare to multiple open clusters.
We report the stellar rotational period for 321 sibling candidates in a 50pc radius around TOI-251 by analyzing their stellar light curves and find a color-rotational period sequence that lies in between the Group X (300Myr) and Pleiades (120Myr) members, suggesting an age ~200Myr. A quantitative age analysis using gyrochronology relations gives 204+/-45Myr, consistent with the average Li age of selected siblings (238+/-38Myr) and the Gaia variability age (193_-54_^102^Myr).
Read the rest (1 more)
The detection fraction of comoving candidates that have a short rotational period is 68.1%, much higher than the typical value in the field (14%-16% from Kepler). The overdensity of young stars and consistency in age of stellar siblings suggest a potential young association candidate in the Phoenix-Grus constellation. Though TOI-251 b has a radius larger than most of its field-age counterparts, we are uncertain whether TOI-251 is inflated, due to a lack of knowledge on the planet's mass.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/952/68 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2023ApJ...952...68S ui.adsabs.harvard.edu/abs/2023ApJ...952...68S ↗
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/952/68 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Astronomical sciences 72%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/apj/952/68 | 13 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 | |
| concepts[modality].ivoa_waveband:infrared | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:optical | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:uv | source · 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 |