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Southworth, J, Hinse, TC, Burgdorf, M, Novati, SC, Dominik, M, Galianni, P, Gerner, T, Giannini, E, Gu, S-H, Hundertmark, M, Jorgensen, UG, Juncher, D, Kerins, E, Mancini, L, Rabus, M, Ricci, D, Schaefer, S, Skottfelt, J, Tregloan-Reed, J, Wang, X-B, Wertz, O, Alsubai, KA, Andersen, JM, Bozza, V, Bramich, DM, Browne, P, Ciceri, S, D'Ago, G, Damerdji, Y, Diehl, C, Dodds, P, Elyiv, A, Fang, X-S, Finet, F, Jaimes, RF, Hardis, S, Harpsoe, K, Jessen-Hansen, J, Kains, N, Kjeldsen, H, Korhonen, H, Liebig, C, Lund, MN, Lundkvist, M, Mathiasen, M, Penny, MT, Popovas, A, Prof, S, Rahvar, S, Sahu, K, Scarpetta, G, Schmidt, RW, Schoenebeck, F, Snodgrass, C, Street, RA, Surdej, J, Tsapras, Y and Vilela, C (2014) High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 and WASP-26. Monthly Notices of the Royal Astronomical Society, 444 (1). 776 -789. ISSN 1365-2966

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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.

Item Type: Article
Additional Information: This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2014 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
Uncontrolled Keywords: stars: fundamental parameters, planetary systems, stars: individual: WASP-24, stars: individual: WASP-25, stars: individual: WASP-26
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: Faculty of Natural Sciences > School of Physical and Geographical Sciences
Related URLs:
Depositing User: Symplectic
Date Deposited: 14 Jul 2015 13:41
Last Modified: 20 May 2019 07:53
URI: https://eprints.keele.ac.uk/id/eprint/721

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