Table · dataset · 2023
TOI-2095 RVs and activity indicators
Listed in IVOA Registry (Virtual Observatory)
The main scientific goal of TESS is to find planets smaller than Neptune around stars that are bright enough to allow for further characterization studies.
Description
Given our current instrumentation and detection biases, M dwarfs are prime targets in the search for small planets that are in (or near) the habitable zone of their host star. In this work, we use photometric observations and CARMENES radial velocity measurements to validate a pair of transiting planet candidates found by TESS.
The data were fitted simultaneously, using a Bayesian Markov chain Monte Carlo (MCMC) procedure and taking into account the stellar variability present in the photometric and spectroscopic time series. We confirm the planetary origin of the two transiting candidates orbiting around TOI-2095 (LSPM J1902+7525). The star is a nearby M dwarf (d=41.90+/-0.03pc, Teff=3759+/-87K, V=12.6mag), with a stellar mass and radius of M*=0.44+/-0.02M_{sun}_ and R*=0.44+/-0.02R_{sun}_, respectively.
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The planetary system is composed of two transiting planets: TOI-2095b, with an orbital period of Pb=17.66484+/-(7x10^-5^) days, and TOI-2095c, with Pc=28.17232+/-(14x10^-5^) days. Both planets have similar sizes with Rb=1.25+/-0.07R_{Earth}_ and Rc=1.33+/-0.08R_{Earth}_ for planet b and planet c, respectively. Although we did not detect the induced RV variations of any planet with significance, our CARMENES data allow us to set stringent upper limits on the masses of these objects.
We find Mb<4.1M_{Earth}_ for the inner and Mc<7.4M_{Earth}_ for the outer planet (95% confidence level). These two planets present equilibrium temperatures in the range of 300-350K and are close to the inner edge of the habitable zone of their star.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/677/A182 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2023A&A...677A.182M ui.adsabs.harvard.edu/abs/2023A%26A...677A.182M ↗
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/677/a182 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Optical
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/a+a/677/a182 | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| 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 |