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J/MNRAS/444/776  Transiting planets WASP-24, 25 and 26       (Southworth+, 2014)

High-precision photometry by telescope defocussing. VI. WASP-24, WASP-25 and WASP-26. Southworth J., Hinse T. C., Burgdorf M., Calchi Novati S., Dominik M., Galianni P., Gerner T., Giannini E., Gu S.-H., Hundertmark M., Jorgensen U. G., Juncher D., Kerins E., Mancini L., Rabus M., Ricci D., Schaefer S., Skottfelt J., Tregloan-Reed J., Wang X.-B., Wertz O., Alsubai K., Andersen J. M., Bozza V., Bramich D. M., Browne P., Ciceri S., D'Ago D., Damerdji Y., Diehl C., Dodds P., Elyiv A., Fang X.-S., Finet F., Figuera Jaimes R., Hardis S., Harpsoe K., Jessen-Hansen J., Kains N., Kjeldsen H., Korhonen H., Liebig C., Lund M. N., Lundkvist M., Mathiasen M., Penny M. T., Popovas A., Proft S., Rahvar S., Sahu K., Scarpetta G., Schmidt R. W., Schoenebeck F., Snodgrass C., Street R. A., Surdej J., Tsapras Y., Vilela C. <Mon. Not. R. Astron. Soc. 444, 776 (2014)> =2014MNRAS.444..776S
ADC_Keywords: Stars, double and multiple ; Planets ; Photometry Keywords: stars: planetary systems - methods: data analysis - methods: observational - techniques: photometric Abstract: We present time-series photometric observations of thirteen 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 to 1.2mmag 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. Description: Light curves of 13 transits of the extrasolar planetary systems WASP-24, WASP-25 and WASP-26 are presented. The data were obtained using the Danish 1.5m telescope, DFOSC imager, and Bessell R and I filters, at ESO La Silla. The telescope was substantially defocussed in order to improve the photometric precision of the observations. The errorbars for each transit have been scaled so the best-fitting model (obtained using the JKTEBOP code) has a reduced chi-squared value of 1.0. Objects: -------------------------------------------------------------------- RA (2000) DE Designation(s) (Period) -------------------------------------------------------------------- 15 08 51.74 +02 20 35.8 WASP-24 = TYC 339-329-1 (P=2.3412217) 13 01 26.37 -27 31 19.9 WASP-25 = TYC 6706-861-1 (P=3.7648327) 00 18 24.70 -15 16 02.3 WASP-26 = TYC 5839-876-1 (P=2.7565972) -------------------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file wasp24r.dat 38 347 R-band photometry of WASP-24 wasp24i.dat 38 422 I-band photometry of WASP-24 wasp25r.dat 38 384 R-band photometry of WASP-25 wasp26i.dat 38 891 I-band photometry of WASP-26
See also: J/MNRAS/396/1023 : Transiting planetary system WASP-5 (Southworth+, 2009) J/MNRAS/399/287 : Transiting planetary system WASP-4 (Southworth+, 2009) J/ApJ/707/167 : Transiting planetary system WASP-18 (Southworth+, 2009) J/MNRAS/408/1680 : Transiting planetary system WASP-2 (Southworth+, 2010) J/A+A/527/A8 : Transiting planetary system WASP-7 (Southworth+, 2011) J/MNRAS/420/2580 : Four transits of HAT-P-13 (Southworth+, 2012) J/MNRAS/422/3099 : Transits of HAT-P-5 (Southworth+, 2012) J/MNRAS/426/1338 : Transiting planetary system WASP-17 (Southworth+, 2012) J/MNRAS/434/1300 : Planetary systems WASP-15, WASP-16 (Southworth+, 2013) Byte-by-byte Description of file: wasp24[ri].dat wasp25r.dat wasp26i.dat
Bytes Format Units Label Explanations
1- 14 F14.6 d BJD Barycentric JD for the midpoint of observation (TDB) 16- 25 F10.7 mag mag Differential magnitude in Band 28- 36 F9.7 mag e_mag Measurement error of the magnitude 38 A1 --- Band [RI] Bessel R or I band
Acknowledgements: John Southworth, astro.js(at)keele.ac.uk
(End) John Southworth [Keele Univ., UK], Patricia Vannier [CDS] 29-Sep-2014
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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