Tags

Type your tag names separated by a space and hit enter

An extrasolar giant planet in a close triple-star system.
Nature 2005; 436(7048):230-3Nat

Abstract

Hot Jupiters are gas-giant planets orbiting with periods of 3-9 days around Sun-like stars. They are believed to form in a disk of gas and condensed matter at or beyond approximately 2.7 astronomical units (au-the Sun-Earth distance) from their parent star. At such distances, there exists a sufficient amount of solid material to produce a core capable of capturing enough gas to form a giant planet. Subsequently, they migrate inward to their present close orbits. Here I report the detection of an unusual hot Jupiter orbiting the primary star of a triple stellar system, HD 188753. The planet has an orbital period of 3.35 days and a minimum mass of 1.14 times that of Jupiter. The primary star's mass is 1.06 times that of the Sun, 1.06 M(\circ). The secondary star, itself a binary stellar system, orbits the primary at an average distance of 12.3 au with an eccentricity of 0.50. The mass of the secondary pair is 1.63 M(\circ). Such a close and massive secondary would have truncated a disk around the primary to a radius of only approximately 1.3 AU (ref. 4) and might have heated it up to temperatures high enough to prohibit giant-planet formation, leaving the origin of this planet unclear.

Authors+Show Affiliations

Division of Geological & Planetary Sciences MC 150-21, California Institute of Technology, Pasadena, California 91125, USA. marciej@gps.caltech.edu

Pub Type(s)

Journal Article

Language

eng

PubMed ID

16015323

Citation

Konacki, Maciej. "An Extrasolar Giant Planet in a Close Triple-star System." Nature, vol. 436, no. 7048, 2005, pp. 230-3.
Konacki M. An extrasolar giant planet in a close triple-star system. Nature. 2005;436(7048):230-3.
Konacki, M. (2005). An extrasolar giant planet in a close triple-star system. Nature, 436(7048), pp. 230-3.
Konacki M. An Extrasolar Giant Planet in a Close Triple-star System. Nature. 2005 Jul 14;436(7048):230-3. PubMed PMID: 16015323.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - An extrasolar giant planet in a close triple-star system. A1 - Konacki,Maciej, PY - 2005/04/15/received PY - 2005/05/23/accepted PY - 2005/7/15/pubmed PY - 2005/7/15/medline PY - 2005/7/15/entrez SP - 230 EP - 3 JF - Nature JO - Nature VL - 436 IS - 7048 N2 - Hot Jupiters are gas-giant planets orbiting with periods of 3-9 days around Sun-like stars. They are believed to form in a disk of gas and condensed matter at or beyond approximately 2.7 astronomical units (au-the Sun-Earth distance) from their parent star. At such distances, there exists a sufficient amount of solid material to produce a core capable of capturing enough gas to form a giant planet. Subsequently, they migrate inward to their present close orbits. Here I report the detection of an unusual hot Jupiter orbiting the primary star of a triple stellar system, HD 188753. The planet has an orbital period of 3.35 days and a minimum mass of 1.14 times that of Jupiter. The primary star's mass is 1.06 times that of the Sun, 1.06 M(\circ). The secondary star, itself a binary stellar system, orbits the primary at an average distance of 12.3 au with an eccentricity of 0.50. The mass of the secondary pair is 1.63 M(\circ). Such a close and massive secondary would have truncated a disk around the primary to a radius of only approximately 1.3 AU (ref. 4) and might have heated it up to temperatures high enough to prohibit giant-planet formation, leaving the origin of this planet unclear. SN - 1476-4687 UR - https://www.unboundmedicine.com/medline/citation/16015323/An_extrasolar_giant_planet_in_a_close_triple_star_system_ L2 - https://doi.org/10.1038/nature03856 DB - PRIME DP - Unbound Medicine ER -