Planet K2-22 b
| Name | K2-22 b | ||
| Planet Status | Confirmed | ||
| Discovered in | 2015 | ||
| Mass | 1.4 ( -1.4 +0.0 ) MJ | ||
| Mass*sin(i) | — |  |
|
| Semi-Major Axis | 0.0088 (± 0.0008) AU | |
|
| Orbital Period | 0.381078 ( -1e-06 +1e-06 ) day | |
|
| Eccentricity | — | ||
| ω | — | ||
| Tperi | — | ||
| Radius | 0.223 ( -0.036 +0.036 ) RJ | |
|
| Inclination | — | ||
| Update | 2021-02-05 | ||
| Detection Method | Primary Transit | ||
| Mass Detection Method | — | ||
| Radius Detection Method | Primary Transit | ||
| Primary transit | 2456811.1216 (± 2.4e-05) JD | |
|
| Secondary transit | — | ||
| λ | — | ||
| Impact Parameter b | 0.65 ( -0.13 +0.08 ) | |
|
| Time Vr=0 | — | ||
| Velocity Semiamplitude K | 280.0 ( -0.0 +280.0 ) m/s | |
|
| Calculated temperature | 2100.0 K | |
|
| Measured temperature | — | ||
| Hottest point longitude | — | ||
| Geometric albedo | — | ||
| Surface gravity log(g/gH) | — | ||
| Alternate Names | K2-22 b, 2MASS J11175587+0237086 b, EPIC 201637175 A b, EPIC 201637175 b, EPIC 201637175.01, K2-22 A b, WISE J111755.84+023708.4 b |
Star
K2-22| Name | K2-22 | ||
| Distance | 245.53 ( -2.81 +2.81 ) pc | ||
| Spectral type | M0 V | ||
| Apparent magnitude V | 17.0 | ||
| Mass | 0.6 (± 0.07) MSun | |
|
| Age | — | ||
| Effective temperature | 3830.0 (± 100.0) K | |
|
| Radius | 0.57 (± 0.06) RSun | |
|
| Metallicity [Fe/H] | 0.03 (± 0.08) | |
|
| Detected Disc | — | ||
| Magnetic Field | — | ||
| RA2000 | 11:17:55.9 | ||
| Dec2000 | +02:37:09 | ||
| Alternate Names | EPIC 201637175, K2-22, 2MASS J11175587+0237086, EPIC 201637175 A, K2-22 A, WISE J111755.84+023708.4 | ||
| Planetary system | 1 planet |
Atmospheric parameters
Temperatures
| Data Source | Type | Result Value | Result Figure | Notes | Reference |
Molecules
| Molecule | Data Source | Type | Result Value | Result Figure | Notes | Reference |
| Na | Measurements | Detected | 2019 - GAIDOS E. | |||
Observability Predictor 
Remarks
20 Apr 2015: The transit light curve depth gives only an upper limit for the planet radius because the, according to Sanchis-Ojeda et al. (2015), the planet is surrounded by a cometary-like tail and a head.Related publications
LBT Reveals Large Dust Particles and a High Mass Loss Rate for K2-22 b
2021
SCHLAWN E., SU K., HERTER T., RIDDEN-HARPER A. & APAI D.
Astron. J., accepted
arxiv
Impact of Space Weather on Climate and Habitability of Terrestrial Type Exoplanets
2020
AIRAPETIAN V., BARNES R., COHEN O., COLLINSON G., DANCHI W. et al.
Int. J. Astrobiol., 19, 136
paper
Extrasolar enigmas: from disintegrating exoplanets to exoasteroids
2020
BUDAJ J., KABATH P. & PALLE E.
in "Reviews in Frontiers of Modern Astrophysics: From Space Debris to Cosmology", eds Kabath, Jon
arxiv
Search for gas from the disintegrating rocky exoplanet K2-22b
2019
RIDDEN-HARPER A., SNELLEN I., KELLER C. & MOLLIERE P.
Astron. & Astrophys., 628, A70
paper arxiv
Monitoring of the D Doublet of Neutral Sodium during Transits of Two "Evaporating" Planets
2019
GAIDOS E., HIRANO T. & ANSDELL M.
MNRAS, accepted
arxiv
The K2-ESPRINT Project I: Discovery of the Disintegrating Rocky Planet K2-22b with a Cometary Head and Leading Tail
2015
SANCHIS-OJEDA R., RAPPAPORT S., PALLÈ E., DELREZ L., DEVORE J. et al.
The Astrophysical Journal, 812, 112
ADS
The K2-ESPRINT Project I: Discovery of the Disintegrating Rocky Planet with a Cometary Head and Tail EPIC 201637175b
2015
SANCHIS-OJEDA R., RAPPAPORT S., PALLE E., DELREZ L., DEVORE J. et al.
ApJ, submitted
arxiv ADS
