OGLE-TR-113

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OGLE-TR-113
OGLE-TR-113LightCurve.png
A light curve showing the February 25, 2008 planet transit across OGLE-TR-113. Adapted from Adams et al. (2010) [1]
Observation data
Epoch J2000.0       Equinox J2000.0
Constellation Carina [2]
Right ascension 10h 52m 24.28s [3]
Declination −61° 26′ 48.8″ [3]
Apparent magnitude  (V)16.08 [4]
Characteristics
Spectral type K [5]
Apparent magnitude  (I)~14.42 [4]
Apparent magnitude  (K)13.0±0.1 [4]
Variable type EP [6]
Astrometry
Proper motion (μ)RA: −15.049 [3] mas/yr
Dec.: +9.684 [3] mas/yr
Parallax (π)1.6898±0.0257  mas [3]
Distance 1,930 ± 30  ly
(592 ± 9  pc)
Absolute magnitude  (MV)15.55[ citation needed ]
Details
Mass 0.78±0.02  M☉
Radius 0.77±0.02  R☉
Metallicity 0.15±0.10 [7]
Age > 0.7 billion years
Other designations
V752  Carinae, SBC9  2451
Database references
SIMBAD data

OGLE-TR-113 is a dim, distant magnitude 16 binary star in the star fields of the constellation Carina. Because of its distance of about 1,930 light years, and location in a crowded field it was not notable in any way. Its apparent brightness changes when one of its planets transits, so the star has been given the variable star designation V752 Carinae. Spectral type of the star is type K dwarf star, slightly cooler and less luminous than the Sun. [4]

Contents

Planetary system

However, in 2002 the Optical Gravitational Lensing Experiment (OGLE) detected periodic dimming in the star's light curve indicating a transiting, planetary-sized object. [8] Since low-mass red dwarfs and brown dwarfs may mimic a planet radial velocity measurements were necessary to calculate the mass of the body. In 2004 the object was proved to be a new transiting extrasolar planet, OGLE-TR-113b. [9]

The OGLE-TR-113 planetary system
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b 1.32±0.19  MJ 0.0229±0.00021.4324757±0.00000130——

See also

References

  1. ↑ Adams, E. R.; López-Morales, M.; Elliot, J. L.; Seager, S.; Osip, D. J. (October 2010). "Six High-precision Transits of OGLE-TR-113b". The Astrophysical Journal. 721 (2): 1829–1834. arXiv: 1008.1799 . Bibcode:2010ApJ...721.1829A. doi:10.1088/0004-637X/721/2/1829.
  2. ↑ 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.
  3. 1 2 3 4 5 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.
  4. 1 2 3 4 "SIMBAD query result: SBC9 2451 -- Spectroscopic binary". Centre de Données astronomiques de Strasbourg . Retrieved 2009-04-30.
  5. ↑ Ehrenreich, D.; Désert, J.-M. (2011). "Mass-loss rates for transiting exoplanets". Astronomy and Astrophysics. 529: A136. arXiv: 1103.0011 . Bibcode:2011A&A...529A.136E. doi:10.1051/0004-6361/201016356.
  6. ↑ Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1. Bibcode:2009yCat....102025S.
  7. ↑ Santos, N. C.; et al. (2006). "Chemical abundances for the transiting planet host stars OGLE-TR-10, 56, 111, 113, 132, and TrES-1". Astronomy and Astrophysics. 458 (3): 997–1005. arXiv: astro-ph/0606758 . Bibcode:2006A&A...458..997S. doi:10.1051/0004-6361:20065683. S2CID   9932745.
  8. ↑ Udalski, A.; et al. (2002). "The Optical Gravitational Lensing Experiment. Planetary and Low-Luminosity Object Transits in the Carina Fields of the Galactic Disk". Acta Astronomica. 52 (4): 317–359. arXiv: astro-ph/0301210 . Bibcode:2002AcA....52..317U.
  9. ↑ Bouchy, F.; et al. (2004). "Two new "very hot Jupiters" among the OGLE transiting candidates". Astronomy and Astrophysics. 421 (1): L13 –L16. arXiv: astro-ph/0404264 . Bibcode:2004A&A...421L..13B. doi:10.1051/0004-6361:20040170. S2CID   16245079.
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