astro.wikisort.org - Meteorite
WASP-28b is an extrasolar planet discovered in 2010[4] 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.[5][1] Since it orbits its star very closely, the planet is a strongly irradiated hot Jupiter.[1] As seen from the Earth, WASP-28b transits its host star every 3.41 days taking about 3 hours to do so.[1]
 Size comparison of WASP-28b with Jupiter. | |
| Discovery[1] | |
|---|---|
| Discovered by | Wide Angle Search for Planets |
| Discovery date | 2010 |
Detection method | Transit |
| Orbital characteristics | |
Semi-major axis | 0.0442±0.0010 AU |
| Eccentricity | <0.075[2] |
Orbital period (sidereal) | 3.40883495±0.00000015[2] d |
| Inclination | 88.61 ± 0.67[1] |
| Star | WASP-28 |
| Physical characteristics | |
Mean radius | 1.319+0.028 −0.026[3] RJ |
| Mass | 0.948+0.051 −0.052[3] MJ |
| Temperature | 1468 ± 37[1] K |
The planet was observed by the Kepler spacecraft during the K2 mission engineering campaign in February 2014 as part of an early science demonstration.[6] It was also observed from December 2016 to March 2017 during K2's campaign 12 which allowed a refinement of the system parameters.[2]
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).[1]
References
- 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.
- Močnik, T.; Hellier, C.; Anderson, D. R. (2020). "K2 Looks Toward WASP-28 and WASP-151". Publications of the Astronomical Society of the Pacific. 132 (1007). 014401. arXiv:1710.08892. Bibcode:2020PASP..132a4401M. doi:10.1088/1538-3873/ab5598.
- Wang, Xian-Yu; et al. (1 July 2021). "Transiting Exoplanet Monitoring Project (TEMP). VI. The Homogeneous Refinement of System Parameters for 39 Transiting Hot Jupiters with 127 New Light Curves". The Astrophysical Journal Supplement Series. 255 (1). 15. arXiv:2105.14851. Bibcode:2021ApJS..255...15W. doi:10.3847/1538-4365/ac0835.
- internet archive - WASP-28b: a hot Jupiter transiting a low-metallicity star
- "WASP-28". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved December 20, 2017.
- 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.
External links
Media related to WASP-28b at Wikimedia Commons- WASP Planets
На других языках
- [en] WASP-28b
[ru] WASP-28 b
WASP-28 b — внесолнечная планета, открытая в рамках проекта SuperWASP и обращающаяся вокруг звезды WASP-28, обладающей видимой звёздной величиной 12 и известной также как 1SWASP J233427.87-013448.1 и 2MASS J23342787-0134482.[2] Поскольку планета обращается на очень близкой к звезде орбите, то представляет собой горячий юпитер, получающий большое количество излучения звезды.[2] При наблюдении с Земли WASP-28 b проходит по диску звезды с периодом 3,41 дня, прохождение длится 3 часа.[2]Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
WikiSort.org - проект по пересортировке и дополнению контента Википедии