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

John Southworth; T.C. Hinse; M. Burgdorf; S. Calchi Novati; M. Dominik; P. Galianni; T. Gerner; Edward H Giannini; Markus Hundertmark; Uffe Gråe Jørgensen; Jesper Mirsa Skottfelt; Kennet Bomann West Harpsøe; Heidi Helena Korhonen; Andrius Popovas; Jens Jessen-Hansen; Mikkel N. Lund; M. Kjeldsen; Diana Juncher; Michael Ingemann Andersen

doi:10.1093/mnras/stu1492

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

John Southworth, T.C. Hinse, M. Burgdorf, S. Calchi Novati, M. Dominik, P. Galianni, T. Gerner, Edward H Giannini, Markus Hundertmark, Uffe Gråe Jørgensen, Jesper Mirsa Skottfelt, Kennet Bomann West Harpsøe, Heidi Helena Korhonen, Andrius Popovas, Jens Jessen-Hansen, Mikkel N. Lund, M. Kjeldsen, Diana Juncher, Michael Ingemann Andersen

38 Citations (Scopus)

Abstract

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

Original language	English
Journal	Monthly Notices of the Royal Astronomical Society
Volume	444
Issue number	3
Pages (from-to)	776-789
ISSN	0035-8711
DOIs	https://doi.org/10.1093/mnras/stu1492
Publication status	Published - 26 Jul 2014

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Southworth, J., Hinse, T. C., Burgdorf, M., Calchi Novati, S., Dominik, M., Galianni, P., Gerner, T., Giannini, E. H., Hundertmark, M., Jørgensen, U. G., Skottfelt, J. M., Harpsøe, K. B. W., Korhonen, H. H., Popovas, A., Jessen-Hansen, J., Lund, M. N., Kjeldsen, M., Juncher, D., & Andersen, M. I. (2014). High-precision photometry by telescope defocussing – VI. WASP-24, WASP-25 and WASP-26. Monthly Notices of the Royal Astronomical Society, 444(3), 776-789. https://doi.org/10.1093/mnras/stu1492

Southworth, J, Hinse, TC, Burgdorf, M, Calchi Novati, S, Dominik, M, Galianni, P, Gerner, T, Giannini, EH, Hundertmark, M, Jørgensen, UG, Skottfelt, JM, Harpsøe, KBW, Korhonen, HH, Popovas, A, Jessen-Hansen, J, Lund, MN, Kjeldsen, M, Juncher, D & Andersen, MI 2014, 'High-precision photometry by telescope defocussing – VI. WASP-24, WASP-25 and WASP-26', Monthly Notices of the Royal Astronomical Society, vol. 444, no. 3, pp. 776-789. https://doi.org/10.1093/mnras/stu1492

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title = "High-precision photometry by telescope defocussing – VI. WASP-24, WASP-25 and WASP-26",

abstract = "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",

author = "John Southworth and T.C. Hinse and M. Burgdorf and {Calchi Novati}, S. and M. Dominik and P. Galianni and T. Gerner and Giannini, {Edward H} and Markus Hundertmark and J{\o}rgensen, {Uffe Gr{\aa}e} and Skottfelt, {Jesper Mirsa} and Harps{\o}e, {Kennet Bomann West} and Korhonen, {Heidi Helena} and Andrius Popovas and Jens Jessen-Hansen and Lund, {Mikkel N.} and M. Kjeldsen and Diana Juncher and Andersen, {Michael Ingemann}",

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doi = "10.1093/mnras/stu1492",

language = "English",

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journal = "Royal Astronomical Society. Monthly Notices",

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TY - JOUR

T1 - High-precision photometry by telescope defocussing – VI. WASP-24, WASP-25 and WASP-26

AU - Southworth, John

AU - Hinse, T.C.

AU - Burgdorf, M.

AU - Calchi Novati, S.

AU - Dominik, M.

AU - Galianni, P.

AU - Gerner, T.

AU - Giannini, Edward H

AU - Hundertmark, Markus

AU - Jørgensen, Uffe Gråe

AU - Skottfelt, Jesper Mirsa

AU - Harpsøe, Kennet Bomann West

AU - Korhonen, Heidi Helena

AU - Popovas, Andrius

AU - Jessen-Hansen, Jens

AU - Lund, Mikkel N.

AU - Kjeldsen, M.

AU - Juncher, Diana

AU - Andersen, Michael Ingemann

PY - 2014/7/26

Y1 - 2014/7/26

N2 - 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

AB - 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

U2 - 10.1093/mnras/stu1492

DO - 10.1093/mnras/stu1492

M3 - Journal article

SN - 0035-8711

VL - 444

SP - 776

EP - 789

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

IS - 3

ER -

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

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