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Published January 1, 2016 | Version v1
Journal article Open

First results of the Kourovka Planet Search: discovery of transiting exoplanet candidates in the first three target fields

Creators

  • 1. Acton Sky Portal Private Observ, Acton, MA 01720 USA
  • 2. Ural Fed Univ, Ul Mira D 19, Ekaterinburg 620002, Russia
  • 3. Russian Acad Sci Pulkovo, Cent Astron Observ, Pulkovskoje Shosse D 65, St Petersburg 196140, Russia
  • 4. Irkutsk State Univ, Ul Karla Marxa D 1, Irkutsk 664003, Russia
  • 5. Russian Acad Sci, Special Astrophys Observ, Nizhnii Arkhyz 369167, Russia
  • 6. Ankara Univ, Dept Astron & Space Sci, Fac Sci, TR-06100 Ankara, Turkey
  • 7. Nicolaus Copernicus Univ, Ctr Astron, Grudziadzka 5, PL-87100 Torun, Poland
  • 8. Univ Siena, Astron Observ DSFTA, Via Roma 56, I-53100 Siena, Italy
  • 9. Observ Montcabrer, C Jaume Balmes 24, Cabrils, Spain
  • 10. Univ Saskatchewan, Phys & Engn Phys Dept, Saskatoon, SK S7N 5E2, Canada
  • 11. Hautes Alpes Parc Nat Reg Baronnies Provencales, Baronnies Provencales Observ, F-05150 Moydans, France

Description

We present the first results of our search for transiting exoplanet candidates as part of the Kourovka Planet Search (KPS) project. The primary objective of the project is to search for new hot Jupiters which transit their host stars, mainly in the Galactic plane, in the R-c magnitude range of 11-14 mag. Our observations were performed with the telescope of the MASTER robotic network, installed at the Kourovka astronomical observatory of the Ural Federal University (Russia), and the Rowe-Ackermann Schmidt Astrograph, installed at the private Acton Sky Portal Observatory (USA). As test observations, we observed three celestial fields of size 2 x 2 deg(2) during the period from 2012 to 2015. As a result, we discovered four transiting exoplanet candidates among the 39 000 stars of the input catalogue. In this paper, we provide the description of the project and analyse additional photometric, spectral, and speckle interferometric observations of the discovered transiting exoplanet candidates. Three of the four transiting exoplanet candidates are most likely astrophysical false positives, while the nature of the fourth (most promising) candidate remains to be ascertained. Also, we propose an alternative observing strategy that could increase the project's exoplanet haul.

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