CoRoT-24b

CoRoT-24b is a transiting exoplanet found by the CoRoT space telescope in 2011 and announced in 2014.[6] Along with CoRoT-24c, it is one of two exoplanets orbiting CoRoT-24,[5] making it the first multiple transiting system detected by the telescope. It is a hot Neptune orbiting at a distance of 0.056 AU from its host star.[6]

CoRoT-24b
Discovery
Discovered byCoRoT space telescope
Discovery date2011
Transit
Designations
2MASS 06474141-0343094 b, Gaia DR2 3105404467618982272 b
Orbital characteristics
Epoch J2000
0.056 ± 0.002 AU (8,380,000 ± 300,000 km)[1]
Eccentricity0
5.1134 ± 0.0006 d
Inclination86.5 ± 2.0 °
StarCoRoT-24
Physical characteristics
Mean radius
0.33 ± 0.04 RJ
Mass<0.018 MJ
Mean density
<0.9 g/cm3[2]
0.4183 G🜨[3]
North pole right ascension
06h 47m 41.41s[4]
North pole declination
−03° 43′ 09.48″[4]
Temperature1,070 K[5]

    Properties

    CoRoT-24b and CoRoT-24c are similar in size; however, CoRoT-24b is more than four times less massive, indicating its low density. Dr. Lammer's team modelled the planetary system and found that the atmosphere should have already evaporated a long time ago. This led to the conclusion that CoRoT-24b is not as big as previously thought, being perhaps 30 to 60 percent smaller than initially measured.[7][8]

    References
    1. "Notes on CoRoT-24 b". exoplanet.eu. Retrieved January 19, 2022.
    2. "CoRoT-24 Overview". NASA Exoplanet Archive. Retrieved January 19, 2022.
    3. "CoRoT-24 b". ExoKyoto. Retrieved January 19, 2022.
    4. "CoRoT-24b". SIMBAD. Retrieved January 19, 2022.
    5. "COROT-24 Planets in the system". Open Exoplanet Catalogue. Retrieved January 19, 2022.
    6. "CoRoT-24b". Retrieved January 19, 2022.
    7. "Some Exoplanets May Be Much Smaller than Thought, Says New Study". SCI NEWS. June 14, 2016. Retrieved January 19, 2022.
    8. Lammer, H.; Erkaev, N. V.; Fossati, L.; Juvan, I.; Odert, P.; Cubillos, P. E.; Guenther, E.; Kislyakova, K. G.; Johnstone, C. P.; Lüftinger, T.; Güdel, M. (September 2016). "Identifying the 'true' radius of the hot sub-Neptune CoRoT-24b by mass-loss modelling". Monthly Notices of the Royal Astronomical Society: Letters. 461 (1): L62–L66. doi:10.1093/mnrasl/slw095.


    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.