CoRoT-24b

Last updated
CoRoT-24b
Discovery
Discovered by CoRoT 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]
Eccentricity 0
5.1134 ± 0.0006 d
Inclination 86.5 ± 2.0 °
Star CoRoT-24
Physical characteristics
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]
Temperature 1,070 K [5]

    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]

    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". Extrasolar Planets Encyclopaedia . 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. 1 2 "CoRoT-24b". SIMBAD . Retrieved January 19, 2022.
    5. 1 2 "COROT-24 Planets in the system". Open Exoplanet Catalogue. Retrieved January 19, 2022.
    6. 1 2 "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. arXiv: 1605.03595 . doi: 10.1093/mnrasl/slw095 .


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