WASP-11b
The planet had the third lowest insolation of the known transiting planets at the time of the discovery (prior to this, Gliese 436 b and HD 17156 b were known to have lower insolation). The temperature implies it falls into the pL class of hot Jupiters: planets which lack significant quantities of titanium(II) oxide and vanadium(II) oxide in their atmospheres and do not have temperature inversions. An alternative classification system for hot Jupiters is based on the equilibrium temperature and the planet's Safronov number. In this scheme, for a given temperature, class I planets have high Safronov numbers and tend to be in orbit around cooler host stars, while class II planets have lower Safronov numbers. In the case of WASP-11b/HAT-P-10b, the equilibrium temperature is 1030 K and the Safronov number is 0.047±0.003, which means it is located close to the dividing line between the class I and class II planets.
The planet is in a binary star system, the second star is WASP-11 B, with a mass 0.34 ± 0.05 of the Sun and a temperature of 3483 ± 43 K.
Notes
See also
References
- ^ Bakos, G. Á.; et al. (2009). "HAT-P-10b: A Light and Moderately Hot Jupiter Transiting A K Dwarf". The Astrophysical Journal. 696 (2): 1950–1955. arXiv:0809.4295. Bibcode:2009ApJ...696.1950B. doi:10.1088/0004-637X/696/2/1950. S2CID 12146075.
- ^ Schneider, J. "Notes for star WASP-11/HAT-P-10". Extrasolar Planets Encyclopaedia. Archived from the original on 2008-10-01. Retrieved 2008-09-29.
- ^ West, R. G; Collier Cameron, A; Hebb, L; Joshi, Y. C; Pollacco, D; Simpson, E; Skillen, I; Stempels, H. C; Wheatley, P. J; Wilson, D; Anderson, D; Bentley, S; Bouchy, F; Enoch, B; Gibson, N; Hébrard, G; Hellier, C; Loeillet, B; Mayor, M; Maxted, P; McDonald, I; Moutou, C; Pont, F; Queloz, D; Smith, A. M. S; Smalley, B; Street, R. A; Udry, S (2011). "The HARPS search for southern extra-solar planets XXXIV. Occurrence, mass distribution and orbital properties of super-Earths and Neptune-mass planets". arXiv:1109.2497 [astro-ph.EP].
- ^ "WASP Planets". SuperWASP. 5 December 2013. Retrieved 2016-01-26.
- ^ Fortney, J. J.; et al. (2008). "A Unified Theory for the Atmospheres of the Hot and Very Hot Jupiters: Two Classes of Irradiated Atmospheres". The Astrophysical Journal. 678 (2): 1419–1435. arXiv:0710.2558. Bibcode:2008ApJ...678.1419F. doi:10.1086/528370. S2CID 17502177.
- ^ Hansen, B. M. S. & Barman, T. (2007). "Two Classes of Hot Jupiters". The Astrophysical Journal. 671 (1): 861–871. arXiv:0706.3052. Bibcode:2007ApJ...671..861H. doi:10.1086/523038. S2CID 16630784.
- ^ Open Exoplanet Catalogue WASP-11 20b
External links
Media related to WASP-11b/HAT-P-10b at Wikimedia Commons