OGLE-TR-113

Your continued donations keep Wikipedia running!
• Ten things you didn't know about Wikipedia •
OGLE-TR-113
From Wikipedia, the free encyclopedia
Jump to: navigation, search
OGLE-TR-113 Observation data
Epoch J2000.0
Constellation Carina [1]
Right ascension 10h 52m 24.40s [1]
Declination -61° 26' 48.5" [1]
Apparent magnitude (V) 14.42 [1]
Distance 1800 ly
(550 [3] pc)
Spectral type K [2]
Other designations
none

OGLE-TR-113 is a distant magnitude 14.42 star in the star fields of the constellation Carina. Because of its great distance, about 1800 light years, and location in the 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.

However, in 2002 the Optical Gravitational Lensing Experiment (OGLE) detected periodic dimming in the star's light curve indicating a transiting, planetary-sized object.[1] 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-113 b.[2]

[edit] OGLE-TR-113b
OGLE-TR-113b Discovery
Discovered by: Bouchy et al.
Discovery date: 2004
Detection method(s): Transit
Orbital characteristics
Semi-major axis: 0.0229 ± 0.0002 AU [4]
Eccentricity: 0
Orbital period: 1.4324757 ± 0.0000013 d [4]
Inclination: 88.8° – 90° [4]
Physical characteristics
Mean radius: 1.09 ± 0.03 RJ [4]
Mass: 1.32 ± 0.19 MJ [4]

OGLE-TR-113b is an extrasolar planet orbiting the star OGLE-TR-113.

In 2002 the Optical Gravitational Lensing Experiment (OGLE) detected periodic dimming in the star's light curve indicating a transiting, planetary-sized object. 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.

The planet has a mass 1.32 times that of Jupiter. Since the planet's inclination is known, the value is exact. It orbits the star (OGLE-TR-113) in an extremely close orbit, even closer than the famous planets 51 Pegasi b and HD 209458 b. The planet races around the star every 1.43 days. Interestingly, radius of the planet is only 9% larger than Jupiter's, despite the heating effect by the star. Planets of its kind are sometimes called "super-hot Jupiters".

[edit] References

1. ^ a b c d e Udalski 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: 317–359. (web Preprint)
2. ^ a b Bouchy et al. (2004). "Two new "very hot Jupiters" among the OGLE transiting candidates". Astronomy and Astrophysics 421: L13-L16. (web Preprint)
3. ^ Santos 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: 997-1005. (web Preprint)
4. ^ a b c d e Gillon et al. (2006). "High accuracy transit photometry of the planet OGLE-TR-113b with a new deconvolution-based method". Astronomy and Astrophysics 459: 249-255. (web Preprint)

[edit] External links

* Extrasolar Planets Encyclopaedia: OGLE-TR-113

* OGLE-TR-113 b

* Extrasolar Visions: OGLR-TR-113

* OGLE-TR-113 b


This variable star–related article is a stub. You can help Wikipedia by expanding it.
Exoplanet icon This extrasolar planet related article is a stub. You can help Wikipedia by expanding it.
Retrieved from "http://en.wikipedia.org/wiki/OGLE-TR-113"

Categories: Carina constellation | Extrasolar planets | Yellow-white dwarfs | Planetary transit variables | Variable star stubs | Extrasolar planet stubs
Views

* Article
* Discussion
* Edit this page
* History

Personal tools

* Sign in / create account

Navigation

* Main page
* Contents
* Featured content
* Current events
* Random article

interaction

* About Wikipedia
* Community portal
* Recent changes
* Contact Wikipedia
* Donate to Wikipedia
* Help

Search

Toolbox

* What links here
* Related changes
* Upload file
* Special pages
* Printable version
* Permanent link
* Cite this article

Powered by MediaWiki
Wikimedia Foundation

* This page was last modified 20:58, 19 August 2007.
* All text is available under the terms of the GNU Free Documentation License. (See Copyrights for details.)
Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a U.S. registered 501(c)(3) tax-deductible nonprofit charity.
* Privacy policy
* About Wikipedia
* Disclaimers

Your continued donations keep Wikipedia running!