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]

Host star

CoRoT-18b 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.

Orbit

The study in 2012, 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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