- OGLE-TR-113
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OGLE-TR-113 Observation data
Epoch J2000.0 Equinox J2000.0Constellation Carina Right ascension 10h 52m 24.40s [1] Declination –61° 26′ 48.5″ [1] Apparent magnitude (V) 16.08[1] Characteristics Spectral type K Apparent magnitude (V) ~16.08[1] Apparent magnitude (I) ~14.42[1] Apparent magnitude (K) 13.0 ±0.1[1] Variable type SB*[1] Astrometry Distance 1800 ± 100 ly
(550 ± 30 [2] pc)Absolute magnitude (MV) 15.55 Details Mass 0.78 (± 0.02) M☉ Radius 0.77 (± 0.02) R☉ Metallicity 0.15 (± 0.10) [3] Age > 0.7 billion years Other designations SBC9 2451Database references SIMBAD data Extrasolar Planets
Encyclopaediadata 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 1800 light years,[2] and location in a crowded field it was not notable in any way. Spectral type of the star is type K dwarf star, slightly cooler and less luminous than the Sun.[1]
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.[4] 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.[5]
The OGLE-TR-113 system Companion
(in order from star)Mass Semimajor axis
(AU)Orbital period
(days)Eccentricity b 1.32 ± 0.19 MJ 0.0229 ± 0.0002 1.4324757 ± 0.0000013 0 See also
- OGLE-TR-132
- Optical Gravitational Lensing Experiment
- List of extrasolar planets
References
- ^ a b c d e f g h "SIMBAD query result: SBC9 2451 -- Spectroscopic binary". Centre de Données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-id?Ident=OGLE-TR+113. Retrieved 2009-04-30.
- ^ a b Díaz et al.; Ramirez, Sebastian; Fernandez, Jose Miguel; Gallardo, Jose; Gieren, Wolfgang; Ivanov, Valentin D.; Mauas, Pablo; Minniti, Dante et al. (2007). "Millimagnitude Photometry for Transiting Extrasolar Planetary Candidates. II. Transits of OGLE-TR-113-b in the Optical and Near-IR". The Astrophysical Journal 660 (1): 850–857. arXiv:astro-ph/0701345. Bibcode 2007ApJ...660..850D. doi:10.1086/512721. http://www.iop.org/EJ/article/0004-637X/660/1/850/70886.html.
- ^ Santos et al.; Ecuvillon, A.; Israelian, G.; Mayor, M.; Melo, C.; Queloz, D.; Udry, S.; Ribeiro, J. P. 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. http://www.aanda.org/articles/aa/abs/2006/42/aa5683-06/aa5683-06.html.(web Preprint)
- ^ Udalski et al.; Szewczyk, O.; Zebrun, K.; Pietrzynski, G.; Szymanski, M.; Kubiak, M.; Soszynski, I.; Wyrzykowski, L. (2002). "The Optical Gravitational Lensing Experiment. Planetary and Low-Luminosity Object Transits in the Carina Fields of the Galactic Disk". Acta Astronomica 52: 317–359. arXiv:astro-ph/0301210. Bibcode 2002AcA....52..317U.(web Preprint)
- ^ Bouchy et al.; Pont, F.; Santos, N. C.; Melo, C.; Mayor, M.; Queloz, D.; Udry, S. (2004). "Two new "very hot Jupiters" among the OGLE transiting candidates". Astronomy and Astrophysics 421: L13–L16. arXiv:astro-ph/0404264. Bibcode 2004A&A...421L..13B. doi:10.1051/0004-6361:20040170. http://cds.aanda.org/index.php?option=article&access=standard&Itemid=129&url=/articles/aa/abs/2004/25/aagd142/aagd142.html.(web Preprint)
External links
- "OGLE-TR-113". Extrasolar Visions. http://www.extrasolar.net/planettour.asp?StarCatId=normal&StarId=217.
Coordinates:
10h 52m 24.40s, −61° 26′ 48.5″Categories:- Type-K stars
- Planetary transit variables
- Carina constellation
- Planetary systems
- Variable star stubs
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