ExoAtmospheres
IAC community database for exoplanet atmospheric observations
WASP-31 b
| Planet status | Confirmed |
|---|---|
| Planet type | Hot Jupiter |
| Period | 3.405909 d |
| Mass | 0.478 MJ 151.9084 M⊕ |
| Radius | 1.537 RJ 17.2144 R⊕ |
| Semi major axis | 0.04657 AU |
| Star name | WASP-31 |
| Star distance | 400 pc |
| Star teff | 6200 K |
| Star radius | 1.24 R☉ |
| Temperature (calculated) | 1542 K |
| V | 11.7 mag |
| J | 10.912 mag |
| K | 10.65 mag |
| Alternate names | |
| Exoplanet Encyclopaedia |  |
Molecules
CrH: Detection
|
G-B: High resolution visible | ExoGemS Detection of a Metal Hydride in an Exoplanet Atmosphere2023, Laura Flagg, Jake D. Turner et al. |
|
CrH: Detection H2O: Detection K: Detection
|
HST WFC3 | Evidence for chromium hydride in the atmosphere of hot Jupiter WASP-31b2021, Braam, Marrick, van der Tak, Floris F. S. et al. |
Weak evidence for CrH later confirmed with a ground-based high-res transmission spectrum. Also, weak evidence for K. |
K: Upper limit CrH: Upper limit Featureless spectra: Detection H: Upper limit Na: Upper limit
|
G-B: High resolution visible | Astro-ph arXiv:2602.15501 | No detections may be due to ESPRESSO wavelength range and planet-occulted line distortions |