HAT-P-16

Last updated
HAT-P-16
Observation data
Epoch J2000       Equinox J2000
Constellation Andromeda [1]
Right ascension 00h 38m 17.5584s [2]
Declination +42° 27′ 47.217″ [2]
Apparent magnitude  (V)10.91 [3]
Characteristics
Evolutionary stage main sequence [2]
Spectral type F8 [4]
Astrometry
Radial velocity (Rv)−16.67±0.42 [2] km/s
Proper motion (μ)RA: −21.535(12) mas/yr [2]
Dec.: −4.582(12) mas/yr [2]
Parallax (π)4.4958±0.0155  mas [2]
Distance 725 ± 3  ly
(222.4 ± 0.8  pc)
Details [5] [6]
Mass 1.218±0.039  M☉
Radius 1.237±0.054  R☉
Luminosity 1.97±0.22  L☉
Surface gravity (log g)4.34±0.03  cgs
Temperature 6140±72  K
Metallicity 0.12±0.08
Rotational velocity (v sin i)3.5±0.5 km/s
Age 2.0±0.8  Gyr
Other designations
Gaia DR2 3815923136483872000, TYC 2792-1700-1, GSC 02792-01700, 2MASS J00381756+4227470 [7]
Database references
SIMBAD data

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, [5] and low starspot activity. [8] The survey in 2015 have failed to find any stellar companions to it. [9] 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. [10]

Planetary system

In 2010 a transiting hot superjovian planet was detected. [5] Transit-timing variation analysis in 2016 have failed to detect an additional planets in the system. [11]

Size comparison of HAT-P-16 b and Jupiter Exoplanet Comparison HAT-P-16 b.png
Size comparison of HAT-P-16 b and Jupiter

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°. [12]

The planet HAT-P-16b equilibrium temperature was found to be equal to 1567±22 K in 2013. [6] 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. [13]

The HAT-P-16 planetary system [5] [14] [6] [11] [15]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b4.221±0.092  MJ 0.04134+0.00044
−0.00045		2.7759704±0.00000070.0462+0.0027
−0.0024		86.6±0.7° 1.190±0.037  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 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. ↑ Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27 –L30. Bibcode:2000A&A...355L..27H.
  4. ↑ Kiefer, F.; Hébrard, G.; Lecavelier Des Etangs, A.; Martioli, E.; Dalal, S.; Vidal-Madjar, A. (2021). "Determining the true mass of radial-velocity exoplanets with Gaia. Nine planet candidates in the brown dwarf or stellar regime and 27 confirmed planets". Astronomy and Astrophysics. 645. arXiv: 2009.14164 . Bibcode:2021A&A...645A...7K. doi:10.1051/0004-6361/202039168.
  5. 1 2 3 4 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 4 M J Planet Transiting a Bright Star on an Eccentric Orbit". The Astrophysical Journal. 720 (2): 1118. arXiv: 1005.2009 . Bibcode:2010ApJ...720.1118B. doi:10.1088/0004-637X/720/2/1118.
  6. 1 2 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.
  7. ↑ "HAT-P-16". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2025-05-09.
  8. ↑ 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
  9. ↑ 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
  10. ↑ 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
  11. 1 2 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
  12. ↑ 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
  13. ↑ 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
  14. ↑ 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
  15. ↑ 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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