Table · dataset · 2025
GL725A RVs and activity indicators
Listed in IVOA Registry (Virtual Observatory)
We report the discovery of a super-Earth candidate orbiting the nearby mid M dwarf Gl 725A using the radial velocity (RV) method.
Description
The planetary signal has been independently identified using high-precision RVs from the SOPHIE andSPIRou spectrographs, in the optical and NIR domains, respectively. We modelled the stellar activity signal jointly with the planet using two Gaussian Processes, one for each instrument to account for the chromaticity of the stellar activity and instrumental systematics, along with a Keplerian model.
The signal is significantly detected with a RV semi-amplitude of 1.67+/-0.20m/s. The planet Gl 725A b is found to be in an orbit compatible with circular with a period of 11.2201+/-0.0051 days. We analysed 27 sectors of TESS photometry on which no transit event was found.
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We determined a minimum mass of M_p_sini=2.78+/-0.35M_{sun}_ which places the planet in the super-Earth regime. Using Mass-Radius relationships we predict a planetary radius to be between 1.2 and 2.0R_{sun}_. The proximity of Gl 725A, of only 3.5pc, makes this new exoplanet one of the closest to Earth and joins the group of S-type low-mass planets in short orbits (P<15d) around close M dwarfs.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/693/A164 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2025A&A...693A.164C ui.adsabs.harvard.edu/abs/2025A%26A...693A.164C ↗
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/693/a164 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Astronomical sciences 75%
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/a+a/693/a164 | 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 (75%) |
| 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 |