WASP-67

Last updated
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 [3]
Characteristics
Evolutionary stage Main sequence [2]
Spectral type K0V [4]
Astrometry
Radial velocity (Rv)−0.76±0.80 [2] km/s
Proper motion (μ)RA: +1.647 [2] mas/yr [2]
Dec.: −33.032 [2] mas/yr [2]
Parallax (π)5.2720±0.0123  mas [2]
Distance 619 ± 1  ly
(189.7 ± 0.4  pc)
Details
Mass 0.91±0.28 [5]   M☉
Radius 0.88±0.08 [5]   R☉
Luminosity 0.51 [6]   L☉
Surface gravity (log g)4.35±0.15 [5]   cgs
Temperature 5200±100 [5]   K
Metallicity [Fe/H]−0.07 [5]   dex
Rotational velocity (v sin i)2.1±0.4 [7]  km/s
Age 4.3±3.1 [8]   Gyr
Other designations
WASP-67, TYC 6307-1388-1, 2MASS J19425852-1956585 [3]
Database references
SIMBAD data
Exoplanet Archive data

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. [8] WASP-67 is slightly depleted in heavy elements, having 85% of the solar abundance of iron. [5]

A multiplicity survey in 2016 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

In 2012 a transiting hot Jupiter planet, WASP-67b, was detected on a tight, circular orbit. [7] 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 [5]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b0.43±0.09  MJ 0.0510+0.001
−0.0008 [4] 		4.61442±0.000010 [12] 85.8±0.35 ° 1.15±0.11  RJ

References

  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. 1 2 3 4 5 6 7 8 9 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. 1 2 "WASP-67". SIMBAD . Centre de données astronomiques de Strasbourg.
  4. 1 2 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
  5. 1 2 3 4 5 6 7 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
  6. ↑ 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.
  7. 1 2 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
  8. 1 2 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 .
  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. 1 2 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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