Table · dataset · 2022
Candidate members of Cep-Her, RSG-5 and CH-2
Listed in IVOA Registry (Virtual Observatory)
Stellar positions and velocities from Gaia are yielding a new view of open cluster dispersal.
Description
Here we present an analysis of a group of stars spanning Cepheus (l=100{deg}) to Hercules (l=40{deg}), hereafter the Cep-Her complex. The group includes four Kepler objects of interest: Kepler-1643b (Rp=2.32{+/-}0.13R{Earth}, P=5.3days), KOI-7368b (Rp=2.22{+/-}0.12R{Earth}, P=6.8days), KOI-7913Ab (Rp=2.34{+/-}0.18R{Earth}, P=24.2days), and Kepler-1627 Ab (Rp=3.85{+/-}0.11R{Earth}, P=7.2days).
The latter Neptune-sized planet is in part of the Cep-Her complex called the {delta}Lyr cluster. Here we focus on the former three systems, which are in other regions of the association. Based on kinematic evidence from Gaia, stellar rotation periods from TESS, and spectroscopy, these three objects are also ~40 million years (Myr) old.
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More specifically, we find that Kepler-1643 is 46_-7_^+9^Myr old, based on its membership in a dense subcluster of the complex called RSG-5. KOI-7368 and KOI-7913 are 36_-8_^+10^Myr old, and are in a diffuse region that we call CH-2. Based on the transit shapes and high-resolution imaging, all three objects are most likely planets, with false-positive probabilities of 6x10^-9^, 4x10^-3^, and 1x10^-4^ for Kepler-1643, KOI-7368, and KOI-7913, respectively.
These planets demonstrate that mini-Neptunes with sizes of ~2 Earth radii exist at ages of 40Myr.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/164/215 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2022AJ....164..215B ui.adsabs.harvard.edu/abs/2022AJ....164..215B ↗
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/aj/164/215 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Optical
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Imaging 75% · Stellar astronomy and planetary systems 79%
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/aj/164/215 | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].anzsrc:field:510109 | enrichment · IVOA Registry | taxonomy-embedding@1.1.0 | title+keywords+description (79%) |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:optical | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].local:modality:imaging | enrichment · IVOA Registry | keyword-concept-rules@1.0.0 | title+description (75%) |
| 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 |