astro.wikisort.org - Meteorite
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]
| Discovery | |
|---|---|
| Discovered by | CoRoT space telescope |
| Discovery date | 2011 |
Detection method | Transit |
| Designations | |
Alternative names | 2MASS 06474141-0343094 b, Gaia DR2 3105404467618982272 b |
| Orbital characteristics | |
| Epoch J2000 | |
Semi-major axis | 0.056 ± 0.002 AU (8,380,000 ± 300,000 km)[1] |
| Eccentricity | 0 |
Orbital period (sidereal) | 5.1134 ± 0.0006 d |
| Inclination | 86.5 ± 2.0 ° |
| Star | CoRoT-24 |
| Physical characteristics | |
Mean radius | 0.33 ± 0.04 RJ |
| Mass | <0.018 MJ |
Mean density | <0.9 g/cm3[2] |
Surface gravity | 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] |
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
- "Notes on CoRoT-24 b". exoplanet.eu. Retrieved January 19, 2022.
- "CoRoT-24 Overview". NASA Exoplanet Archive. Retrieved January 19, 2022.
- "CoRoT-24 b". ExoKyoto. Retrieved January 19, 2022.
- "CoRoT-24b". SIMBAD. Retrieved January 19, 2022.
- "COROT-24 Planets in the system". Open Exoplanet Catalogue. Retrieved January 19, 2022.
- "CoRoT-24b". Retrieved January 19, 2022.
- "Some Exoplanets May Be Much Smaller than Thought, Says New Study". SCI NEWS. June 14, 2016. Retrieved January 19, 2022.
- 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.
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