Astronomy:WASP-10

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WASP-10 is a star 461 light-years away in the constellation Pegasus. It hosts a transiting planet discovered by the SuperWASP project.[1]

The star is likely older than the Sun, has a fraction of heavy elements close to the solar abundance, and is rotating rapidly, being spun up by the tides raised by the giant planet on a close orbit.[2]

Planetary system

Main article: Astronomy:WASP-10b

WASP-10 hosts one confirmed exoplanet, WASP-10b. It is a hot Jupiter discovered in 2008.[1]

A candidate second planet with a 5-day period, WASP-10c, was inferred from transit-timing variations of WASP-10b in 2010,[3] but this was refuted in 2013.[4] Instead, there may be a super-Jupiter planet or brown dwarf on a wide (at least 5 AU) orbit, based on radial velocity observations.[5]

The WASP-10 planetary system[6][5]
Companion
(in order from star) 		Mass Semimajor axis
(AU) 		Orbital period
(days) 		Eccentricity Inclination Radius
b 3.21+0.23
−0.24 MJ 		0.0378+0.0013
−0.0014 		3.09272932(32) 0.0601+0.0064
−0.0046 		88.81±0.40° 1.067±0.064 RJ
c (unconfirmed) 4–90 MJ 5–30 — — — —

References

  1. ↑ 1.0 1.1 Christian; Gibson, N. P.; Simpson, E. K.; Street, R. A.; Skillen, I.; Pollacco, D.; Collier Cameron, A.; Joshi, Y. C. et al. (December 29, 2008). "WASP-10b: a 3MJ, gas-giant planet transiting a late-type K star". Monthly Notices of the Royal Astronomical Society 392 (4): 1585–1590. doi:10.1111/j.1365-2966.2008.14164.x. Bibcode: 2009MNRAS.392.1585C. 
  2. ↑ Maxted, P. F. L.; Serenelli, A. M.; Southworth, J. (2015), "A comparison of gyrochronological and isochronal age estimates for transiting exoplanet host stars", Astronomy & Astrophysics 577: A90, doi:10.1051/0004-6361/201525774, Bibcode: 2015A&A...577A..90M 
  3. ↑ MacIejewski, G.; Dimitrov, D.; Neuhäuser, R.; Tetzlaff, N.; Niedzielski, A.; Raetz, St.; Chen, W. P.; Walter, F. et al. (2011). "Transit timing variation and activity in the WASP-10 planetary system★". Monthly Notices of the Royal Astronomical Society 411 (2): 1204–1212. doi:10.1111/j.1365-2966.2010.17753.x. Bibcode: 2011MNRAS.411.1204M. 
  4. ↑ Barros, S. C. C. et al. (April 2013). "Transit timing variations in WASP-10b induced by stellar activity". Monthly Notices of the Royal Astronomical Society 430 (4): 3032–3047. doi:10.1093/mnras/stt111. Bibcode: 2013MNRAS.430.3032B. 
  5. ↑ 5.0 5.1 Knutson, Heather A.; Fulton, Benjamin J.; Montet, Benjamin T.; Kao, Melodie; Ngo, Henry; Howard, Andrew W.; Crepp, Justin R.; Hinkley, Sasha et al. (2014). "Friends of Hot Jupiters. I. A Radial Velocity Search for Massive, Long-Period Companions to Close-In Gas Giant Planets". The Astrophysical Journal 785 (2): 126. doi:10.1088/0004-637X/785/2/126. Bibcode: 2014ApJ...785..126K. 
  6. ↑ Bonomo, A. S. et al. (June 2017). "The GAPS Programme with HARPS-N at TNG. XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets". Astronomy & Astrophysics 602: A107. doi:10.1051/0004-6361/201629882. Bibcode: 2017A&A...602A.107B. 

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Coordinates: Sky map 23h 15m 58.299s, +31° 27′ 46.295″



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