A transiting planet among 23 new near-threshold candidates from the OGLE survey - OGLE-TR-182

F. Pont, O. Tamuz, A. Udalski, T. Mazeh, F. Bouchy, C. Melo, D. Naef, N. C. Santos, C. Moutou, R. F. Diaz, W. Gieren, M. Gillon, S. Hoyer, M. Kubiak, M. Mayor, D. Minniti, G. Pietrzynski, D. Queloz, S. Ramirez, M. T. RuizA. Shporer, I. Soszyński, O. Szewczyk, M. K. Szymański, S. Udry, K. Ulaczyk, Wyrzykowski, M. Zoccali

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By re-processing the data of the second season of the OGLE survey for planetary transits and adding new mesurements on the same fields gathered in subsequent years with the OGLE telescope, we have identified 23 new transit candidates, recorded as OGLE-TR-178 to OGLE-TR-200. We studied the nature of these objects with the FLAMES/UVES multi-fiber spectrograph on the VLT. One of the candidates, OGLE-TR-182, was confirmed as a transiting gas giant planet on a 4-day orbit. We characterised it with further observations using the FORS1 camera and UVES spectrograph on the VLT. OGLE-TR-182b is a typical "hot Jupiter" with an orbital period of 3.98 days, a mass of 1.01 ± 0.15 MJup and a radius of 1.13-0.08+0.24 R Jup. Confirming this transiting planet required a large investment in telescope time with the best instruments available, and we comment on the difficulty of the confirmation process for transiting planets in the OGLE survey. We delineate the zone were confirmation is difficult or impossible, and discuss the implications for the CoRoT space mission in its quest for transiting telluric planets.

Original languageEnglish
Pages (from-to)749-754
Number of pages6
JournalAstronomy and Astrophysics
Issue number2
Publication statusPublished - Aug 2008


  • Planetary systems
  • Stars: individual: OGLE-TR-182

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

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    Pont, F., Tamuz, O., Udalski, A., Mazeh, T., Bouchy, F., Melo, C., Naef, D., Santos, N. C., Moutou, C., Diaz, R. F., Gieren, W., Gillon, M., Hoyer, S., Kubiak, M., Mayor, M., Minniti, D., Pietrzynski, G., Queloz, D., Ramirez, S., ... Zoccali, M. (2008). A transiting planet among 23 new near-threshold candidates from the OGLE survey - OGLE-TR-182. Astronomy and Astrophysics, 487(2), 749-754. https://doi.org/10.1051/0004-6361:20078949