WASP-28b
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WASP-28b is an extrasolar planet discovered by the Wide Angle Search for Planets (WASP) project orbiting WASP-28, a magnitude 12 star also known as 1SWASP J233427.87-013448.1 and 2MASS J23342787-0134482.[1][2] Since it orbits its star very closely, the planet is a strongly irradiated hot Jupiter.[2] As seen from the Earth, WASP-28b transits its host star every 3.41 days taking about 3 hours to do so.[2]
The planet was observed by the Kepler spacecraft during the K2 mission engineering campaign in February 2014 as part of an early science demonstration.[3] It was also observed from December 2016 to March 2017 during K2's campaign 12 which allowed a refinement of the system parameters.[4]
Internal structure
The planet seems to be a gas giant with a low core mass (<~10M(Earth)) and a low heavy elements content (Z<~0.2).[2]
References
- ^ "WASP-28". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved December 20, 2017.
- ^ a b c d Anderson, D. R.; et al. (2015). "WASP-20b and WASP-28b: A hot Saturn and a hot Jupiter in near-aligned orbits around solar-type stars". Astronomy and Astrophysics. 575. A61. arXiv:1402.1482. Bibcode:2015A&A...575A..61A. doi:10.1051/0004-6361/201423591.
- ^ Howell, Steve B.; et al. (2014). "The K2 Mission: Characterization and Early Results". Publications of the Astronomical Society of the Pacific. 126 (938): 398–408. arXiv:1402.5163. Bibcode:2014PASP..126..398H. doi:10.1086/676406.
- ^ Močnik, T.; Hellier, C.; Anderson, D. R. (2017). "K2 Looks Towards WASP-28 and WASP-151". arXiv:1710.08892 [astro-ph.EP].
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External links
Media related to WASP-28b at Wikimedia Commons- WASP Planets
