CoRoT-18b is a transiting hot Jupiter exoplanet found by the CoRoT space telescope in 2011.[3][4] It orbits CoRoT-18 in the constellation of Monoceros. It is a G9V star with an effective temperature of 5,440 K (5,170 °C; 9,330 °F), a mass of 0.95 M☉, a radius of 1.00 R☉, and a near-solar metallicity. Its age is unknown. A 2021 study utilizing the Rossiter–McLaughlin effect has determined the planetary orbit is probably aligned with the rotational axis of the star, with a misalignment equal to -10±20°.[5]
| Discovery | |
|---|---|
| Discovered by | CoRoT space telescope |
| Transit | |
| Orbital characteristics | |
| 0.0295 AU (4,410,000 km)[1] | |
| Eccentricity | 0-0.08 |
| 1.9000693 d | |
| Inclination | 86.5 |
| Star | CoRoT-18 |
| Physical characteristics | |
| 1.31 RJ | |
| Mass | 3.47MJ |
| Temperature | 1396 K[2] |
References
edit- ^ "Notes on CoRoT-18 b". Extrasolar Planets Encyclopaedia. Retrieved February 25, 2019.
- ^ "COROT-18 Planets in the system". Retrieved February 25, 2019.
- ^ Hébrard, G.; et al. (2011), "Transiting exoplanets from the CoRoT space mission", Astronomy & Astrophysics, 533: A130, arXiv:1107.2032, doi:10.1051/0004-6361/201117192
- ^ "NEW WORLDS ATLAS CoRoT-18 b". Retrieved February 25, 2019.
- ^ Albrecht, Simon; Winn, Joshua N.; Johnson, John A.; Howard, Andrew W.; Marcy, Geoffrey W.; Butler, R. Paul; Arriagada, Pamela; Crane, Jeffrey D.; Shectman, Stephen A.; Thompson, Ian B.; Hirano, Teruyuki; Bakos, Gaspar; Hartman, Joel D. (2012), "Obliquities of Hot Jupiter Host Stars: Evidence for Tidal Interactions and Primordial Misalignments", The Astrophysical Journal, 757: 18, arXiv:1206.6105, Bibcode:2012ApJ...757...18A, doi:10.1088/0004-637X/757/1/18, S2CID 17174530
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