Table · dataset · 2025
Discovery of 4 warm giants
Listed in IVOA Registry (Virtual Observatory)
We report the discovery and characterization of three new transiting giant planets orbiting TOI-6628, TOI-3837 and TOI-5027, and one new warm sub-Saturn orbiting TOI-2328, whose transits events were detected in the lightcurves of the Transiting Exoplanet Survey Satellite (TESS) space mission.
Description
By combining TESS lightcurves with ground-based photometric and spectroscopic follow-up observations, we confirm the planetary nature of the observed transits and radial velocity variations.
TOI-6628 b has a mass of 0.74+/-0.06M_J_, a radius of 0.98^+0.06^_-0.05_R_J_ and orbits a metal rich star with a period of 18.18424+/-0.00001 days and an eccentricity of 0.670^+0.015^_-0.016_, making it one of the most eccentric orbits of all known warm giants. TOI-3837 b has a mass of 0.59+/-0.05 M_J_, a radius of 0.97^+0.05^_-0.06_R_J_ and orbits its host star every 11.88865+/-0.00003 days, with a moderate eccentricity of 0.221^+0.042^_-0.046_.
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With a mass of 2.02+/-0.13M_J_ and a radius of 0.96^+0.05^_-0.06_R_J_, TOI-5027 b orbits its host star in an eccentric orbit with e=0.385^+0.025^_-0.026_ every 10.24368+/-0.00001 days. TOI-2328 b is a Saturn-like planet with a mass of 0.16+/-0.02M_J_ and a radius of 0.89^+0.04^_-0.05_R_J_, orbiting its host star in a nearly circular orbit with e=0.057^+0.046^_-0.029_ at an orbital period of 17.10197+/-0.00001 days. All four planets have orbital periods above 10 days, and our planet interior structure models are consistent with a rocky-icy core with a H/He envelope, providing evidence supporting the core-accretion model of planet formation for this kind of planets.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/694/A268 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2025A&A...694A.268T ui.adsabs.harvard.edu/abs/2025A%26A...694A.268T ↗
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/a%2Ba/694/a268 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Optical
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Astronomical sciences 74%
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/a+a/694/a268 | 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 (74%) |
| 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 | |
| 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 |