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WASP-67

Coordinates: Sky map 19h 42m 58.5217s, −19° 56′ 58.5230″
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WASP-67
Observation data
Epoch J2000      Equinox J2000
Constellation Sagittarius[1]
Right ascension 19h 42m 58.5218s[2]
Declination −19° 56′ 58.521″[2]
Apparent magnitude (V) 12.54
Characteristics
Evolutionary stage Main sequence[2]
Spectral type K0V[3]
Astrometry
Radial velocity (Rv)−0.76±0.80[2] km/s
Proper motion (μ) RA: +1.647[2] mas/yr
Dec.: −33.032[2] mas/yr
Parallax (π)5.2720±0.0123 mas[2]
Distance619 ± 1 ly
(189.7 ± 0.4 pc)
Details
Mass0.91±0.28[4] M☉
Radius0.88±0.08[4] R☉
Luminosity0.51[5] L☉
Surface gravity (log g)4.35±0.15[4] cgs
Temperature5200±100[4] K
Metallicity [Fe/H]−0.07[4] dex
Rotational velocity (v sin i)2.1±0.4[6] km/s
Age4.3±3.1[7] Gyr
Other designations
Gaia DR2 6868476691490044672, WASP-67, TYC 6307-1388-1, 2MASS J19425852-1956585[8]
Database references
SIMBADdata

WASP-67 is a K-type main-sequence star about 620 light-years away. The star's age is poorly constrained.[7] WASP-67 is slightly depleted in heavy elements, having 85% of the solar abundance of iron.[4]

A multiplicity survey in 2016 has found one candidate stellar companion to WASP-67 at a projected separation of 4.422″±0.018″.[9] Nonetheless, follow-up observations in 2017 failed to find any bound stellar companions.[10]

Planetary system

[edit]

In 2012 a transiting hot Jupiter planet b was detected on a tight, circular orbit.[6] Its equilibrium temperature is 1050 K.[11]

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.[11]

The WASP-67 planetary system[4]
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[3] 		4.61442±0.00001 0[12] 85.8±0.35° 1.15±0.11 RJ

References

[edit]
  1. ^ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
  2. ^ a b c d e f g Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  3. ^ a b Mancini, L.; Southworth, J.; Ciceri, S.; Calchi Novati, S.; Dominik, M.; Henning, Th.; Jørgensen, U. G.; Korhonen, H.; Nikolov, N.; Alsubai, K. A.; Bozza, V.; Bramich, D. M.; d'Ago, G.; Figuera Jaimes, R.; Galianni, P.; Gu, S.-H.; Harpsøe, K.; Hinse, T. C.; Hundertmark, M.; Juncher, D.; Kains, N.; Popovas, A.; Rabus, M.; Rahvar, S.; Skottfelt, J.; Snodgrass, C.; Street, R.; Surdej, J.; Tsapras, Y.; et al. (2014), "Physical properties of the WASP-67 planetary system from multi-colour photometry", Astronomy & Astrophysics, 568: A127, arXiv:1406.7448, Bibcode:2014A&A...568A.127M, doi:10.1051/0004-6361/201424106, S2CID 53646473
  4. ^ a b c d e f g 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, arXiv:1609.04389, Bibcode:2017AJ....153..136S, doi:10.3847/1538-3881/aa5df3, S2CID 119219062
  5. ^ Johns, Daniel; et al. (November 2018). "Revised Exoplanet Radii and Habitability Using Gaia Data Release 2". The Astrophysical Journal Supplement Series. 239 (1): 14. arXiv:1808.04533. Bibcode:2018ApJS..239...14J. doi:10.3847/1538-4365/aae5fb. 14.
  6. ^ a b Hellier, Coel; Anderson, D. R.; Collier Cameron, A.; Doyle, A. P.; Fumel, A.; Gillon, M.; Jehin, E.; Lendl, M.; Maxted, P. F. L.; Pepe, F.; Pollacco, D.; Queloz, D.; Ségransan, D.; Smalley, B.; Smith, A. M. S.; Southworth, J.; Triaud, A. H. M. J.; Udry, S.; West, R. G. (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, arXiv:1204.5095, Bibcode:2012MNRAS.426..739H, doi:10.1111/j.1365-2966.2012.21780.x, S2CID 54713354
  7. ^ a b Huang, Yang; Beers, Timothy C.; Wolf, Christian; Lee, Young Sun; Onken, Christopher A.; Yuan, Haibo; Shank, Derek; Zhang, Huawei; Wang, Chun; Shi, Jianrong; Fan, Zhou (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. arXiv:2104.14154. Bibcode:2022ApJ...925..164H. doi:10.3847/1538-4357/ac21cb.
  8. ^ "WASP-67". SIMBAD. Centre de données astronomiques de Strasbourg.
  9. ^ Evans, D. F.; Southworth, J.; Maxted, P. F. L.; Skottfelt, J.; Hundertmark, M.; Jørgensen, U. G.; Dominik, M.; Alsubai, K. A.; Andersen, M. I.; Bozza, V.; Bramich, D. M.; Burgdorf, M. J.; Ciceri, S.; d'Ago, G.; Figuera Jaimes, R.; Gu, S.-H.; Haugbølle, T.; Hinse, T. C.; Juncher, D.; Kains, N.; Kerins, E.; Korhonen, H.; Kuffmeier, M.; Mancini, L.; Peixinho, N.; Popovas, A.; Rabus, M.; Rahvar, S.; Schmidt, R. W.; 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, arXiv:1603.03274, Bibcode:2016A&A...589A..58E, doi:10.1051/0004-6361/201527970, S2CID 14215845
  10. ^ Evans, D. F.; Southworth, J.; Smalley, B.; Jørgensen, U. G.; Dominik, M.; Andersen, M. I.; Bozza, V.; Bramich, D. M.; Burgdorf, M. J.; Ciceri, S.; d'Ago, G.; Figuera Jaimes, R.; Gu, S.-H.; Hinse, T. C.; Henning, Th.; Hundertmark, M.; Kains, N.; Kerins, E.; Korhonen, H.; Kokotanekova, R.; Kuffmeier, M.; Longa-Peña, P.; Mancini, L.; MacKenzie, J.; Popovas, A.; Rabus, M.; Rahvar, S.; Sajadian, S.; Snodgrass, C.; et al. (2018), "High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP). II. Lucky Imaging results from 2015 and 2016", Astronomy & Astrophysics, 610: A20, arXiv:1709.07476, Bibcode:2018A&A...610A..20E, doi:10.1051/0004-6361/201731855, S2CID 53400492
  11. ^ a b Bruno, Giovanni; Lewis, Nikole K.; Stevenson, Kevin B.; Filippazzo, Joseph; Hill, Matthew; Fraine, Jonathan D.; Wakeford, Hannah R.; Deming, Drake; Kilpatrick, Brian; Line, Michael R.; Morley, Caroline V.; Collins, Karen A.; Conti, Dennis M.; Garlitz, Joseph; Rodriguez, Joseph E. (2018), "A COMPARATIVE STUDY OF WASP-67b AND HAT-P-38b FROM WFC3 DATA", The Astronomical Journal, 155 (2): 55, arXiv:1712.03384, Bibcode:2018AJ....155...55B, doi:10.3847/1538-3881/aaa0c7, S2CID 119083486
  12. ^ Kammer, Joshua A.; Knutson, Heather A.; Line, Michael R.; Fortney, Jonathan J.; Deming, Drake; Burrows, Adam; Cowan, Nicolas B.; Triaud, Amaury H. M. J.; Agol, Eric; Desert, Jean-Michel; Fulton, Benjamin J.; Howard, Andrew W.; Laughlin, Gregory P.; Lewis, Nikole K.; Morley, Caroline V.; Moses, Julianne I.; Showman, Adam P.; Todorov, Kamen O. (2015), "Spitzersecondary Eclipse Observations of Five Cool Gas Giant Planets and Empirical Trends in Cool Planet Emission Spectra", The Astrophysical Journal, 810 (2): 118, arXiv:1508.00902, Bibcode:2015ApJ...810..118K, doi:10.1088/0004-637X/810/2/118, S2CID 13378720


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