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  • 21 Aug, 2019

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HAT-P-16
HAT-P-16 is a F-type main-sequence star about 725 light-years away. The star has a concentration of heavy elements slightly higher than solar abundance, and low starspot activity. The survey in 2015 have failed to find any stellar companions to it. The spectral analysis in 2014 have discovered the HAT-P-16 has a carbon to oxygen molar ratio of 0.58±0.08, close to Sun`s value of 0.55.


Planetary system

In 2010 a transiting hot superjovian planet was detected. Transit-timing variation analysis in 2016 have failed to detect an additional planets in the system.

In 2011 the observation utilizing a Rossiter–McLaughlin effect was performed, and the orbit of HAT-P-16b was found to be probably aligned with the equatorial plane of the star, misalignment angle equal to 10±16°.

The planet HAT-P-16b equilibrium temperature was found to be equal to 1567±22 K in 2013. The multiband photometry have failed to find any Rayleigh scattering in the HAT-P-16b atmosphere, which may indicate a presence of hazes or dense cloud deck.

Size comparison of HAT-P-16 b and Jupiter
The HAT-P-16 planetary system
Companion
(in order from star) 		Mass Semimajor axis
(AU) 		Orbital period
(days) 		Eccentricity Inclination Radius
b 4.221±0.092 MJ 0.04134
−0.00045 		2.7759704±0.0000007 0.0462
−0.0024 		86.6±0.7° 1.190±0.037 RJ

References

  1. ^ 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.
  2. ^ Buchhave, L. A.; Bakos, G. Á.; Hartman, J. D.; Torres, G.; Kovács, G.; Latham, D. W.; Noyes, R. W.; Esquerdo, G. A.; Everett, M.; Howard, A. W.; Marcy, G. W.; Fischer, D. A.; Johnson, J. A.; Andersen, J.; Fűrész, G.; Perumpilly, G.; Sasselov, D. D.; Stefanik, R. P.; Béky, B.; Lázár, J.; Papp, I.; Sári, P. (2010), "HAT-P-16b: A 4MJPLANET TRANSITING a BRIGHT STAR ON AN ECCENTRIC ORBIT", The Astrophysical Journal, 720 (2): 1118–1125, arXiv:1005.2009, Bibcode:2010ApJ...720.1118B, doi:10.1088/0004-637X/720/2/1118, S2CID 34104016
  3. ^ Ciceri, S.; Mancini, L.; Southworth, J.; Nikolov, N.; Bozza, V.; Bruni, I.; Calchi Novati, S.; d'Ago, G.; Henning, Th. (2013). "Simultaneous follow-up of planetary transits: Revised physical properties for the planetary systems HAT-P-16 and WASP-21". Astronomy & Astrophysics. 557: A30. arXiv:1307.5874. Bibcode:2013A&A...557A..30C. doi:10.1051/0004-6361/201321669. S2CID 55192357.
  4. ^ HAT-P-16 -- Star
  5. ^ Shkolnik, Evgenya L. (2013), "An Ultraviolet Investigation of Activity on Exoplanet Host Stars", The Astrophysical Journal, 766 (1): 9, arXiv:1301.6192, Bibcode:2013ApJ...766....9S, doi:10.1088/0004-637X/766/1/9, S2CID 118415788
  6. ^ Piskorz, Danielle; Knutson, Heather A.; Ngo, Henry; Muirhead, Philip S.; Batygin, Konstantin; Crepp, Justin R.; Hinkley, Sasha; Morton, Timothy D. (2015), "Friends of Hot Jupiters. III. An Infrared Spectroscopic Search for Low-Mass Stellar Companions", The Astrophysical Journal, 814 (2): 148, arXiv:1510.08062, Bibcode:2015ApJ...814..148P, doi:10.1088/0004-637X/814/2/148, S2CID 11525988
  7. ^ Teske, Johanna K.; Cunha, Katia; Smith, Verne V.; Schuler, Simon C.; Griffith, Caitlin A. (2014), "C/O Ratios of Stars with Transiting Hot Jupiter Exoplanets", The Astrophysical Journal, 788 (1): 39, arXiv:1403.6891, Bibcode:2014ApJ...788...39T, doi:10.1088/0004-637X/788/1/39, S2CID 119210392
  8. ^ Sada, Pedro V.; Ramón-Fox, Felipe G. (2016), "Exoplanet Transits Registered at the Universidad de Monterrey Observatory. I. HAT-P-12b, HAT-P-13b, HAT-P-16b, HAT-P-23b, and WASP-10b", Publications of the Astronomical Society of the Pacific, 128 (960): 024402, arXiv:1601.02292, Bibcode:2016PASP..128b4402S, doi:10.1088/1538-3873/128/960/024402, S2CID 119303757
  9. ^ Moutou, C.; Díaz, R. F.; Udry, S.; Hébrard, G.; Bouchy, F.; Santerne, A.; Ehrenreich, D.; Arnold, L.; Boisse, I.; Bonfils, X.; Delfosse, X.; Eggenberger, A.; Forveille, T.; Lagrange, A.-M.; Lovis, C.; Martinez, P.; Pepe, F.; Perrier, C.; Queloz, D.; Santos, N. C.; Ségransan, D.; Toublanc, D.; Troncin, J. P.; Vanhuysse, M.; Vidal-Madjar, A. (2011), "Spin-orbit inclinations of the exoplanetary systems HAT-P-8b, HAT-P-9b, HAT-P-16b, and HAT-P-23b", Astronomy & Astrophysics, 533: A113, arXiv:1105.3849, Bibcode:2011A&A...533A.113M, doi:10.1051/0004-6361/201116760, S2CID 55894097
  10. ^ Pearson, Kyle A.; Turner, Jake D.; Sagan, Thomas G. (2013), "Photometric observation of HAT-P-16b in the near-UV", New Astronomy, 27: 102–110, arXiv:1310.5397, doi:10.1016/j.newast.2013.08.002, S2CID 119309058
  11. ^ Husnoo, Nawal; Pont, Frédéric; Mazeh, Tsevi; Fabrycky, Daniel; Hébrard, Guillaume; Bouchy, François; Shporer, Avi (2012), "Observational constraints on tidal effects using orbital eccentricities★", Monthly Notices of the Royal Astronomical Society, 422 (4): 3151–3177, arXiv:1202.6379, Bibcode:2012MNRAS.422.3151H, doi:10.1111/j.1365-2966.2012.20839.x, S2CID 119179880
  12. ^ Bonomo, A. S.; et al. (2017), "The GAPS Programme with HARPS-N at TNG", Astronomy & Astrophysics, 602: A107, arXiv:1704.00373, Bibcode:2017A&A...602A.107B, doi:10.1051/0004-6361/201629882, S2CID 118923163


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