Astronomy:WASP-67
WASP-67 is a K-type main-sequence star about 620 light-years away in the constellation Sagittarius. The star's age is poorly constrained.[1] WASP-67 is slightly depleted in heavy elements, having 85% of the solar abundance of iron.[2]
A multiplicity survey in 2016 found one candidate stellar companion to WASP-67 at a projected separation of 4.422″±0.018″.[3] Nonetheless, follow-up observations in 2017 failed to find any bound stellar companions.[4]
Planetary system
In 2012 a transiting hot Jupiter planet, WASP-67b, was detected on a tight, circular orbit.[5] Its equilibrium temperature is 1050 K.[6]
The planetary atmosphere contains water, and a cloud layer is located higher than in the similar gas giant HAT-P-38b, indicating a high planetary metallicity.[6]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.43±0.09 MJ | 0.0510+0.001 −0.0008[7] |
4.61442±0.00001 | 0[8] | 85.8±0.35° | 1.15±0.11 RJ |
References
- ↑ Huang, Yang; Beers, Timothy C.; Wolf, Christian; Lee, Young Sun; Onken, Christopher A.; Yuan, Haibo; Shank, Derek; Zhang, Huawei et al. (2022). "Beyond Spectroscopy. I. Metallicities, Distances, and Age Estimates for over 20 Million Stars from SMSS DR2 and Gaia EDR3". The Astrophysical Journal 925 (2): 164. doi:10.3847/1538-4357/ac21cb. Bibcode: 2022ApJ...925..164H.
- ↑ 2.0 2.1 Stassun, Keivan G.; Collins, Karen A.; Gaudi, B. Scott (2016), "Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes", The Astronomical Journal 153 (3): 136, doi:10.3847/1538-3881/aa5df3, Bibcode: 2017AJ....153..136S
- ↑ Evans, D. F.; Southworth, J.; Maxted, P. F. L.; Skottfelt, J.; Hundertmark, M.; Jørgensen, U. G.; Dominik, M.; Alsubai, K. A. et al. (2016), "High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP). I. Lucky imaging observations of 101 systems in the southern hemisphere", Astronomy & Astrophysics 589: A58, doi:10.1051/0004-6361/201527970, Bibcode: 2016A&A...589A..58E
- ↑ Evans, D. F.; Southworth, J.; Smalley, B.; Jørgensen, U. G.; Dominik, M.; Andersen, M. I.; Bozza, V.; Bramich, D. M. et al. (2018), "High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP). II. Lucky Imaging results from 2015 and 2016", Astronomy & Astrophysics 610: A20, doi:10.1051/0004-6361/201731855, Bibcode: 2018A&A...610A..20E
- ↑ Hellier, Coel; Anderson, D. R.; Collier Cameron, A.; Doyle, A. P.; Fumel, A.; Gillon, M.; Jehin, E.; Lendl, M. et al. (2012), "Seven transiting hot-Jupiters from WASP-South, Euler and TRAPPIST: WASP-47b, WASP-55b, WASP-61b, WASP-62b, WASP-63b, WASP-66b & WASP-67b", Monthly Notices of the Royal Astronomical Society 426 (1): 739–750, doi:10.1111/j.1365-2966.2012.21780.x, Bibcode: 2012MNRAS.426..739H
- ↑ 6.0 6.1 Bruno, Giovanni; Lewis, Nikole K.; Stevenson, Kevin B.; Filippazzo, Joseph; Hill, Matthew; Fraine, Jonathan D.; Wakeford, Hannah R.; Deming, Drake et al. (2018), "A COMPARATIVE STUDY OF WASP-67b AND HAT-P-38b FROM WFC3 DATA", The Astronomical Journal 155 (2): 55, doi:10.3847/1538-3881/aaa0c7, Bibcode: 2018AJ....155...55B
- ↑ Mancini, L.; Southworth, J.; Ciceri, S.; Calchi Novati, S.; Dominik, M.; Henning, Th.; Jørgensen, U. G.; Korhonen, H. et al. (2014), "Physical properties of the WASP-67 planetary system from multi-colour photometry", Astronomy & Astrophysics 568: A127, doi:10.1051/0004-6361/201424106, Bibcode: 2014A&A...568A.127M
- ↑ Kammer, Joshua A.; Knutson, Heather A.; Line, Michael R.; Fortney, Jonathan J.; Deming, Drake; Burrows, Adam; Cowan, Nicolas B.; Triaud, Amaury H. M. J. et al. (2015), "Spitzersecondary Eclipse Observations of Five Cool Gas Giant Planets and Empirical Trends in Cool Planet Emission Spectra", The Astrophysical Journal 810 (2): 118, doi:10.1088/0004-637X/810/2/118, Bibcode: 2015ApJ...810..118K
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<ref> tag with name "johns2018" defined in <references> is not used in prior text.Coordinates: 
19h 42m 58.5217s, −19° 56′ 58.5230″
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