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

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  • John Southworth, Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK
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  • T. C. Hinse, Korea Astronomy and Space Science Institute, Daejeon, 305-348 Republic of Korea
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  • M. Burgdorf, HE Space Operations GmbH, Flughafenallee 24, D-28199 Bremen, Germany
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  • S. Calchi Novati, Dipartimento di Fisica `E.R. Caianiello', Università di Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano (SA), Italy
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  • M. Dominik, SUPA, University of St Andrews, School of Physics and Astronomy, North Haugh, St Andrews KY16 9SS, UK
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  • P. Galianni, SUPA, University of St Andrews, School of Physics and Astronomy, North Haugh, St Andrews KY16 9SS, UK, Ukendt
  • T. Gerner, Astronomisches Rechen-Institut, Zentrum für Astronomie, Universität Heidelberg, Mönchhofstraße 12-14, 69120, Heidelberg, Germany
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  • E. Giannini, Astronomisches Rechen-Institut, Zentrum für Astronomie, Universität Heidelberg, Mönchhofstraße 12-14, 69120, Heidelberg, Germany
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  • S.-H. Gu, National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, 650011 China
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  • M. Hundertmark, SUPA, University of St Andrews, School of Physics and Astronomy, North Haugh, St Andrews KY16 9SS, UK
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  • U. G. Jørgensen, Niels Bohr Institute & Centre for Star and Planet Formation, University of Copenhagen, Juliane Maries vej 30, DK-2100 Copenhagen Ø, Denmark, Ukendt
  • D. Juncher, Niels Bohr Institute & Centre for Star and Planet Formation, University of Copenhagen, Juliane Maries vej 30, DK-2100 Copenhagen Ø, Denmark
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  • E. Kerins, Jodrell Bank Centre for Astrophysics, University of Manchester, Oxford Road Manchester, M13 9PL
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  • L. Mancini, Max Planck Institute for Astronomy, Königstuhl 17 69117 Heidelberg, Germany
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  • M. Rabus, Instituto de Astrofísica, Facultad de Física, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 7820436 Macul, Santiago, Chile
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  • D. Ricci, Instituto de Astronomía-UNAM, Km 103 Carretera Tijuana Ensenada, 422860 Ensenada (Baja Cfa), Mexico
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  • S. Schäfer, Institut für Astrophysik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1 37077 Göttingen, Germany
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  • J. Skottfelt, Niels Bohr Institute & Centre for Star and Planet Formation, University of Copenhagen, Juliane Maries vej 30, DK-2100 Copenhagen Ø, Denmark
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  • J. Tregloan-Reed, Astrophysics Group, Keele University, Staffordshire, ST5 5BG
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  • X.-B. Wang, National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, 650011 China, Ukendt
  • O. Wertz, Institut d'Astrophysique et de Géophysique, Université de Liège, 4000 Liège, Belgium
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  • K. A. Alsubai, Qatar Environment and Energy Research Institute, Qatar Foundation, Tornado Tower, Floor 19, PO Box 5825 Doha, Qatar
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  • J. M. Andersen, Niels Bohr Institute & Centre for Star and Planet Formation, University of Copenhagen, Juliane Maries vej 30, DK-2100 Copenhagen Ø, Denmark, Ukendt
  • V. Bozza, Dipartimento di Fisica `E.R. Caianiello', Università di Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano (SA), Italy
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  • D. M. Bramich, Qatar Environment and Energy Research Institute, Qatar Foundation, Tornado Tower, Floor 19, PO Box 5825 Doha, Qatar
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  • P. Browne, SUPA, University of St Andrews, School of Physics and Astronomy, North Haugh, St Andrews KY16 9SS, UK
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  • S. Ciceri, Max Planck Institute for Astronomy, Königstuhl 17 69117 Heidelberg, Germany
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  • G. D'Ago, Dipartimento di Fisica `E.R. Caianiello', Università di Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano (SA), Italy, Ukendt
  • Y. Damerdji, Institut d'Astrophysique et de Géophysique, Université de Liège, 4000 Liège, Belgium
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  • C. Diehl, Astronomisches Rechen-Institut, Zentrum für Astronomie, Universität Heidelberg, Mönchhofstraße 12-14, 69120, Heidelberg, Germany
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  • P. Dodds, SUPA, University of St Andrews, School of Physics and Astronomy, North Haugh, St Andrews KY16 9SS, UK
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  • A. Elyiv, Università di Bologna
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  • X.-S. Fang, National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, 650011 China
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  • F. Finet, Institut d'Astrophysique et de Géophysique, Université de Liège, 4000 Liège, Belgium
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  • R. Figuera Jaimes, SUPA, University of St Andrews, School of Physics and Astronomy, North Haugh, St Andrews KY16 9SS, UK
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  • S. Hardis, Niels Bohr Institute & Centre for Star and Planet Formation, University of Copenhagen, Juliane Maries vej 30, DK-2100 Copenhagen Ø, Denmark
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  • K. Harpsøe, Niels Bohr Institute & Centre for Star and Planet Formation, University of Copenhagen, Juliane Maries vej 30, DK-2100 Copenhagen Ø, Denmark
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  • J. Jessen-Hansen
  • N. Kains, Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
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  • H. Kjeldsen
  • H. Korhonen, Finnish Centre for Astronomy with ESO (FINCA), University of Turku, Väisäläntie 20, FI-21500 Piikkiö, Finland
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  • C. Liebig, SUPA, University of St Andrews, School of Physics and Astronomy, North Haugh, St Andrews KY16 9SS, UK
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  • M. N. Lund
  • M. Lundkvist
  • M. Mathiasen, Niels Bohr Institute & Centre for Star and Planet Formation, University of Copenhagen, Juliane Maries vej 30, DK-2100 Copenhagen Ø, Denmark, Ukendt
  • M. T. Penny, Department of Astronomy, Ohio State University, 140 W. 18th Ave., Columbus, OH 43210, USA
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  • A. Popovas, Niels Bohr Institute & Centre for Star and Planet Formation, University of Copenhagen, Juliane Maries vej 30, DK-2100 Copenhagen Ø, Denmark, Ukendt
  • S. Prof., Astronomisches Rechen-Institut, Zentrum für Astronomie, Universität Heidelberg, Mönchhofstraße 12-14, 69120, Heidelberg, Germany
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  • S. Rahvar, Department of Physics, Sharif University of Technology, PO Box 11155-9161 Tehran, Iran
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  • K. Sahu, Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
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  • G. Scarpetta, Istituto Internazionale per gli Alti Studi Scientifici (IIASS), 84019 Vietri Sul Mare (SA), Italy
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  • R. W. Schmidt, Astronomisches Rechen-Institut, Zentrum für Astronomie, Universität Heidelberg, Mönchhofstraße 12-14, 69120, Heidelberg, Germany, Ukendt
  • F. Schönebeck, Astronomisches Rechen-Institut, Zentrum für Astronomie, Universität Heidelberg, Mönchhofstraße 12-14, 69120, Heidelberg, Germany
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  • C. Snodgrass, Max Planck Institute for Solar System Research, Justus-von-Liebig-Weg 3, D-37077 Göttingen, Germany
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  • R. A. Street, LCOGT, 6740 Cortona Drive, Suite 102, Goleta, CA 93117, USA
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  • J. Surdej, Institut d'Astrophysique et de Géophysique, Université de Liège, 4000 Liège, Belgium
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  • Y. Tsapras, LCOGT, 6740 Cortona Drive, Suite 102, Goleta, CA 93117, USA
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  • C. Vilela, Astrophysics Group, Keele University, Staffordshire, ST5 5BG
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 and WASP-26 have been observed with Spitzer, and WASP-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 ephemerides of the systems to high precision, finding that our improved measurements are in good agreement with previous studies. High-resolution Lucky Imaging observations of all three targets show no evidence for faint stars close enough to contaminate our photometry. We confirm the eclipsing nature of the star closest to WASP-24 and present the detection of a detached eclipsing binary within 4.25 arcmin of WASP-26.
OriginalsprogEngelsk
TidsskriftRoyal Astronomical Society. Monthly Notices
Vol/bind444
Nummer1
Sider (fra-til)776-789
Antal sider14
ISSN0035-8711
DOI
StatusUdgivet - 2014

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