K2-3b, also known as EPIC 201367065 b, is an exoplanet orbiting the red dwarf K2-3 every 10 days.[3][4] It is the largest and most massive planet of the K2-3 system, with about 2.1 times the radius of Earth and about 5 times the mass.[2] Its density of about 3.1 g/cm3 may indicate a composition of almost entirely water, or a hydrogen envelope comprising about 0.7% of the planet’s mass.[5]
References
- ^ Crossfield, Ian J. M.; et al. (2015). “A Nearby M Star with Three Transiting Super-Earths Discovered by K2”. The Astrophysical Journal. 804 (1) 10. arXiv:1501.03798. Bibcode:2015ApJ…804…10C. doi:10.1088/0004-637X/804/1/10.
- ^ a b c Diamond-Lowe, Hannah; et al. (2022-11-01). “The K2-3 System Revisited: Testing Photoevaporation and Core-powered Mass Loss with Three Small Planets Spanning the Radius Valley”. The Astronomical Journal. 164 (5) 172. arXiv:2207.12755. Bibcode:2022AJ….164..172D. doi:10.3847/1538-3881/ac7807.
- ^ “K2-3 b CONFIRMED PLANET OVERVIEW PAGE”. NASA Exoplanet Archive. Retrieved 2015-10-17.
- ^ “The Extrasolar Planet Encyclopaedia — K2-3 b”. Extrasolar Planets Encyclopaedia.
- ^ Damasso, M.; et al. (2018). “Eyes on K2-3: A system of three likely sub-Neptunes characterized with HARPS-N and HARPS”. Astronomy & Astrophysics. 615 A69. arXiv:1802.08320. Bibcode:2018A&A…615A..69D. doi:10.1051/0004-6361/201732459.
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