Table · dataset · 2022
Radial velocity and transit photometry of TOI-1431
Listed in IVOA Registry (Virtual Observatory)
We present the discovery of a highly irradiated and moderately inflated ultrahot Jupiter, TOI-1431b/MASCARA-5 b (HD201033b), first detected by NASA's Transiting Exoplanet Survey Satellite mission (TESS) and the Multi-site All-Sky Camera (MASCARA).
Description
The signal was established to be of planetary origin through radial velocity measurements obtained using SONG, SOPHIE, FIES, NRES, and EXPRES, which show a reflex motion of K=294.1{+/-}1.1m/s.
A joint analysis of the TESS and ground-based photometry and radial velocity measurements reveals that TOI-1431b has a mass of M_p_=3.12{+/-}0.18M_J_ (990{+/-}60M{Earth}), an inflated radius of R_p_=1.49{+/-}0.05R_J_ (16.7{+/-}0.6R{Earth}), and an orbital period of P=2.650237{+/-}0.000003 days. Analysis of the spectral energy distribution of the host star reveals that the planet orbits a bright (V=8.049mag) and young (0.29_-0.19_^+0.32^Gyr) Am type star with T_eff_=7690_-250_^+400^K, resulting in a highly irradiated planet with an incident flux of <F>=7.24_-0.64_^+0.68^x10^9^erg/s/cm (5300_-470_^+500^S{Earth}) and an equilibrium temperature of T_eq_=2370{+/-}70K.
Read the rest (2 more)
TESS photometry also reveals a secondary eclipse with a depth of 127_-5_^+4^ppm as well as the full phase curve of the planet's thermal emission in the red-optical. This has allowed us to measure the dayside and nightside temperature of its atmosphere as T_day_=3004{+/-}64K and T_night_=2583{+/-}63K, the second hottest measured nightside temperature. The planet's low day/night temperature contrast (~420K) suggests very efficient heat transport between the dayside and nightside hemispheres.
Given the host star brightness and estimated secondary eclipse depth of ~1000ppm in the K band, the secondary eclipse is potentially detectable at near-IR wavelengths with ground-based facilities, and the planet is ideal for intensive atmospheric characterization through transmission and emission spectroscopy from space missions such as the James Webb Space Telescope and the Atmospheric Remote-sensing Infrared Exoplanet Large-survey.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/162/292 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2021AJ....162..292A ui.adsabs.harvard.edu/abs/2021AJ....162..292A ↗
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/162/292 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Astronomical sciences 70%
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/aj/162/292 | 8 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 (70%) |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:infrared | source · 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 |