CoRoT-18b

CoRoT-18b
Discovery
Discovered by	CoRoT space telescope
Detection method	Transit
Orbital characteristics
Semi-major axis	0.0295 AU (4,410,000 km)
Eccentricity	0-0.08
Orbital period (sidereal)	1.9000693 d
Inclination	86.5
Star	CoRoT-18
Physical characteristics
Mean radius	1.31 RJ
Mass	3.47MJ
Temperature	1396 K

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]

References

^ "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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[EU-1] "Notes on CoRoT-18 b". Extrasolar Planets Encyclopaedia. Retrieved February 25, 2019.

[2] "COROT-18 Planets in the system". Retrieved February 25, 2019.

[3] 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

[4] "NEW WORLDS ATLAS CoRoT-18 b". Retrieved February 25, 2019.

[5] 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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