WASP-25

Last updated
WASP-25
Observation data
Epoch J2000       Equinox J2000
Constellation Hydra [1]
Right ascension 13h 01m 26.3760s [2]
Declination −27° 31′ 19.922″ [2]
Apparent magnitude  (V)11.87 [3]
Characteristics
Evolutionary stage main sequence [2]
Spectral type G4 [4]
Astrometry
Radial velocity (Rv)−2.698±0.0028 [5] km/s
Proper motion (μ)RA: −29.264 [2] mas/yr
Dec.: −6.196 [2] mas/yr
Parallax (π)4.6501±0.0230  mas [2]
Distance 701 ± 3  ly
(215 ± 1  pc)
Details [6]
Mass 1.053±0.038  M☉
Radius 0.924±0.018  R☉
Luminosity 0.89 [7]   L☉
Surface gravity (log g)4.530±0.015  cgs
Temperature 5,736±50  K
Metallicity [Fe/H]0.06±0.05  dex
Rotational velocity (v sin i)2.9±0.3 [8]  km/s
Age 0.10+5.70
−0.10  Gyr
Other designations
TOI-767, TIC 229047362, WASP-25, TYC 6706-861-1, 2MASS J13012637-2731199, DENIS J130126.3-273120 [9]
Database references
SIMBAD data
Exoplanet Archive data

WASP-25 is a G-type main-sequence star about 701 light-years away in the constellation of Hydra.

Contents

Star characteristics

WASP-25 is slightly metal-poor (85% of Solar amount) and is probably a young star which has just entered the main sequence. [4]

Planetary system

The hot Jupiter class planet WASP-25b was discovered around WASP-25 in 2010. [4] The planet would have an equilibrium temperature of 1212±35 K. A Rossiter-McLaughlin effect based study in 2011 found a modest misalignment of the planetary orbit to the rotational axis of the parent star, equal to 14.6±6.7 degrees. [8] A habitability study in 2018 found WASP-25b does not adversely affect the stability of planetary orbits in the habitable zone of WASP-25. [10]

The WASP-25 planetary system [11]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b0.574±0.042  MJ 0.04738±0.000473.7648327(9)<0.08388.12±0.27 [6] ° 1.247±0.032 [6]   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 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. 1 2 3 Enoch, B.; Cameron, A. Collier; Anderson, D. R.; Lister, T. A.; Hellier, C.; Maxted, P. F. L.; Queloz, D.; Smalley, B.; Triaud, A. H. M. J.; West, R. G.; Brown, D. J. A.; Gillon, M.; Hebb, L.; Lendl, M.; Parley, N.; Pepe, F.; Pollacco, D.; Segransan, D.; Simpson, E.; Street, R. A.; Udry, S. (2010). "WASP-25b: A 0.6 MJ planet in the Southern hemisphere". Monthly Notices of the Royal Astronomical Society: no. arXiv: 1009.5917 . doi: 10.1111/j.1365-2966.2010.17550.x . S2CID   6314762.
  5. ↑ Soubiran, C.; Jasniewicz, G.; Chemin, L.; Zurbach, C.; Brouillet, N.; Panuzzo, P.; Sartoretti, P.; Katz, D.; Le Campion, J. -F.; Marchal, O.; Hestroffer, D.; Thévenin, F.; Crifo, F.; Udry, S.; Cropper, M.; Seabroke, G.; Viala, Y.; Benson, K.; Blomme, R.; Jean-Antoine, A.; Huckle, H.; Smith, M.; Baker, S. G.; Damerdji, Y.; Dolding, C.; Frémat, Y.; Gosset, E.; Guerrier, A.; Guy, L. P.; et al. (2018). "Gaia Data Release 2. The catalogue of radial velocity standard stars". Astronomy and Astrophysics. 616: A7. arXiv: 1804.09370 . Bibcode:2018A&A...616A...7S. doi:10.1051/0004-6361/201832795. S2CID   52952408.
  6. 1 2 3 Southworth, John; Hinse, T. C.; Burgdorf, M.; Calchi Novati, S.; Dominik, M.; Galianni, P.; Gerner, T.; Giannini, E.; Gu, S.-H.; Hundertmark, M.; Jørgensen, U. G.; Juncher, D.; Kerins, E.; Mancini, L.; Rabus, M.; Ricci, D.; Schäfer, S.; Skottfelt, J.; Tregloan-Reed, J.; Wang, X.-B.; Wertz, O.; Alsubai, K. A.; Andersen, J. M.; Bozza, V.; Bramich, D. M.; Browne, P.; Ciceri, S.; d'Ago, G.; Damerdji, Y.; et al. (2014). "High-precision photometry by telescope defocussing – VI. WASP-24, WASP-25 and WASP-26★". Monthly Notices of the Royal Astronomical Society. 444 (1): 776–789. arXiv: 1407.6253 . Bibcode:2014MNRAS.444..776S. doi: 10.1093/mnras/stu1492 . S2CID   53641330.
  7. ↑ Ulmer-Moll, S.; Santos, N. C.; Figueira, P.; Brinchmann, J.; Faria, J. P. (2019). "Beyond the exoplanet mass-radius relation". Astronomy and Astrophysics. 630: A135. arXiv: 1909.07392 . Bibcode:2019A&A...630A.135U. doi:10.1051/0004-6361/201936049.
  8. 1 2 Brown, D. J. A.; Cameron, A. Collier; Anderson, D. R.; Enoch, B.; Hellier, C.; Maxted, P. F. L.; Miller, G. R. M.; Pollacco, D.; Queloz, D.; Simpson, E.; Smalley, B.; Triaud, A. H. M. J.; Boisse, I.; Bouchy, F.; Gillon, M.; Hébrard, G. (2012). "Rossiter-Mc Laughlin effect measurements for WASP-16, WASP-25 and WASP-31★". Monthly Notices of the Royal Astronomical Society. 423 (2): 1503–1520. arXiv: 1203.4971 . Bibcode:2012MNRAS.423.1503B. doi: 10.1111/j.1365-2966.2012.20973.x . S2CID   53445367.
  9. ↑ "WASP-25". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2015-05-30.
  10. ↑ Georgakarakos, Nikolaos; Eggl, Siegfried; Dobbs-Dixon, Ian (2018). "Giant Planets: Good Neighbors for Habitable Worlds?". The Astrophysical Journal. 856 (2): 155. arXiv: 1804.02183 . Bibcode:2018ApJ...856..155G. doi: 10.3847/1538-4357/aaaf72 . S2CID   119522834.
  11. ↑ Bonomo, A. S.; Desidera, S.; et al. (June 2017). "The GAPS Programme with HARPS-N at TNG. XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets". Astronomy & Astrophysics . 602: A107. arXiv: 1704.00373 . Bibcode:2017A&A...602A.107B. doi:10.1051/0004-6361/201629882. S2CID   118923163.
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