← Search

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_.

Read the rest (1 more)

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

Topics

Stated by source
Optical
Inferred from text
Astronomical sciences 74%
Provenance · 1 source records, 9 field assertions
SourceKeyLast seenRaw
IVOA Registry (Virtual Observatory)ivo://cds.vizier/j/a+a/694/a26815 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[field].anzsrc:group:5101enrichment · IVOA Registrytaxonomy-embedding@1.1.0title+keywords+description (74%)
concepts[field].local:field:astronomymapping · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[modality].ivoa_waveband:opticalsource · IVOA Registryconnector:ivoa_registry@1.0.0
descriptionsource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_description
license_textsource · IVOA Registryconnector:ivoa_registry@1.0.0
publication_datesource · IVOA Registryconnector:ivoa_registry@1.0.0
titlesource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_title
updated_datesource · IVOA Registryconnector:ivoa_registry@1.0.0