A search for exotrojans in transiting exoplanetary systems

N. Madhusudhan, Joshua N. Winn

Research output: Contribution to journalArticlepeer-review


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 languageEnglish (US)
Pages (from-to)496-498
Number of pages3
JournalProceedings of the International Astronomical Union
Issue numberS253
StatePublished - May 2008
Externally publishedYes

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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