A search for exotrojans in transiting exoplanetary systems

N. Madhusudhan; Joshua N. Winn

doi:10.1017/S1743921308027038

A search for exotrojans in transiting exoplanetary systems

Research output: Contribution to journal › Article › peer-review

Abstract

We present a search for Trojan companions to 25 transiting exoplanets. We use the technique of Ford & Gaudi, in which a difference is sought between the observed transit time and the transit time that is calculated by fitting a two-body Keplerian orbit to the radial-velocity data. This technique is sensitive to the imbalance of mass at the L4/L5 points of the planetstar orbit. No companions were detected. The median 2σ upper limit is 60 M _⊕, and the most constraining limit is 2.5 M_⊕ for the case of GJ 436.

Original language	English (US)
Pages (from-to)	496-498
Number of pages	3
Journal	Proceedings of the International Astronomical Union
Volume	4
Issue number	S253
DOIs	https://doi.org/10.1017/S1743921308027038
State	Published - May 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

Medicine (miscellaneous)
Astronomy and Astrophysics
Nutrition and Dietetics
Public Health, Environmental and Occupational Health
Space and Planetary Science

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10.1017/S1743921308027038

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abstract = "We present a search for Trojan companions to 25 transiting exoplanets. We use the technique of Ford & Gaudi, in which a difference is sought between the observed transit time and the transit time that is calculated by fitting a two-body Keplerian orbit to the radial-velocity data. This technique is sensitive to the imbalance of mass at the L4/L5 points of the planetstar orbit. No companions were detected. The median 2σ upper limit is 60 M ⊕, and the most constraining limit is 2.5 M⊕ for the case of GJ 436.",

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AB - We present a search for Trojan companions to 25 transiting exoplanets. We use the technique of Ford & Gaudi, in which a difference is sought between the observed transit time and the transit time that is calculated by fitting a two-body Keplerian orbit to the radial-velocity data. This technique is sensitive to the imbalance of mass at the L4/L5 points of the planetstar orbit. No companions were detected. The median 2σ upper limit is 60 M ⊕, and the most constraining limit is 2.5 M⊕ for the case of GJ 436.

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JF - Proceedings of the International Astronomical Union

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ER -

A search for exotrojans in transiting exoplanetary systems

Abstract

All Science Journal Classification (ASJC) codes

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