High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 and WASP-26
Keywords: planetary systems, stars: fundamental parameters, stars: individual: WASP-24, stars: individual: WASP-25, stars: individual: 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 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 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.
Más información
Título según WOS: | High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 and WASP-26 |
Título según SCOPUS: | High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 andWASP-26* |
Título de la Revista: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
Volumen: | 444 |
Número: | 1 |
Editorial: | OXFORD UNIV PRESS |
Fecha de publicación: | 2014 |
Página de inicio: | 776 |
Página final: | 789 |
Idioma: | English |
DOI: |
10.1093/mnras/stu1492 |
Notas: | ISI, SCOPUS |