High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 and WASP-26

  title={High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 and WASP-26},
  author={John Southworth and Tobias C. Hinse and Martin J. Burgdorf and Sebastiano Calchi Novati and Martin Dominik and Pasquale Galianni and Thomas Gerner and Emanuela Giannini and S-H. Gu and M. Hundertmark and U. G. J{\o}rgensen and Diana Juncher and Eamonn Kerins and Luigi Mancini and Markus Rabus and D. Ricci and S. Schaefer and Jesper F. Skottfelt and J Tregloan-Reed and X-B. Wang and O. Wertz and Khalid Alsubai and Jan Marie Andersen and Valerio Bozza and D. M. Bramich and Patrick J. Browne and Simona Ciceri and Giuseppe D’ago and Yassine Damerdji and Christoph Diehl and Peter N. Dodds and Andrii Elyiv and Xiang-Song Fang and François Finet and R. Figuera Jaimes and S. Hardis and Kennet B. W. Harpsoe and Jens Jessen-Hansen and No{\'e} Kains and Hans Kjeldsen and Heidi Korhonen and Christine Liebig and Mikkel N. Lund and Mia S Lundkvist and M S Mathiasen and Matthew T. Penny and Andrius Popovas and Svea Proft and Sohrab Rahvar and Kailash C. Sahu and G. Scarpetta and Robert W. Schmidt and F. v. Schoenebeck and Colin Snodgrass and Rachel A. Street and Jean Surdej and Yiannis Tsapras and C. Vilela},
  journal={Monthly Notices of the Royal Astronomical Society},
We present time series photometric observations of 13 transits in the planetary systems WASP-24, WASP-25 and WASP-26. All three systems have orbital obliquity measurements, WASP-24 andWASP-26 have been observed with Spitzer, andWASP-25 was previously comparatively neglected. Our light curves were obtained using the telescope-defocussing method and have scatters of 0.5-1.2 mmag relative to their best-fitting geometric models. We use these data to measure the physical properties and orbital… 

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