J/MNRAS/434/1300 WASP-15 and WASP-16 light curves (Southworth+, 2013)
High-precision photometry by telescope defocusing. V. WASP-15 and WASP-16.
Southworth J., Mancini L., Browne P., Burgdorf M., Calchi Novati S.,
Dominik M., Gerner T., Hinse T.C., Jorgensen U.G., Kains N., Ricci D.,
Schafer S., Schonebeck F., Tregloan-Reed J., Alsubai K.A., Bozza V.,
Chen G., Dodds P., Dreizler S., Fang X.-S., Finet F., Gu S.-H., Hardis S.,
Harpsoe K., Henning T., Hundertmark M., Jessen-Hansen J., Kerins E.,
Kjeldsen H., Liebig C., Lund M.N., Lundkvist M., Mathiasen M., Nikolov N.,
Penny M.T., Proft S., Rahvar S., Sahu K., Scarpetta G., Skottfelt J.,
Snodgrass C., Surdej J., Wertz O.
<Mon. Not. R. Astron. Soc., 434, 1300-1308 (2013)>
=2013MNRAS.434.1300S 2013MNRAS.434.1300S
ADC_Keywords: Stars, double and multiple ; Planets ; Photometry
Keywords: stars: fundamental parameters - stars: individual: WASP-15 -
stars: individual: WASP-16 - planetary systems
Abstract:
We present new photometric observations of WASP-15 and WASP-16, two
transiting extrasolar planetary systems with measured orbital
obliquities but without photometric follow-up since their discovery
papers. Our new data for WASP-15 comprise observations of one transit
simultaneously in four optical passbands using GROND on the
MPG/European Southern Observatory (ESO) 2.2m telescope, plus coverage
of half a transit from DFOSC on the Danish 1.54m telescope, both at
ESO La Silla. For WASP-16 we present observations of four complete
transits, all from the Danish telescope. We use these new data to
refine the measured physical properties and orbital ephemerides of the
two systems. Whilst our results are close to the originally determined
values for WASP-15, we find that the star and planet in the WASP-16
system are both larger and less massive than previously thought.
Description:
Nine light curves of six transits of the extrasolar planetary systems
WASP-15 and WASP-16 are presented. The data were obtained using the
Danish 1.5m telescope and DFOSC camera, and the ESO/MPI 2.2m telescope
and GROND imager, with substantial telescope defocussing in order to
improve the photometric precision of the observations. A Bessell R
filter was used with DFOSC. The observations with GROND were obtained
simultaneously through four filters: Sloan g, r, i and z.
Objects:
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RA (2000) DE Designation(s) (Per)
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13 55 42.70 -32 09 34.6 WASP-15 = TYC 7283-1162-1 (3.75209748)
14 18 43.92 -20 16 31.9 WASP-16 = TYC 6147-229-1 (3.1186068)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
wasp15gr.dat 36 909 Photometry of WASP-15 from GROND
wasp15dk.dat 33 92 Photometry of WASP-15 from DFOSC
wasp16dk.dat 33 565 Photometry of WASP-16 from DFOSC
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See also:
J/MNRAS/408/1680 : Transiting planetary system WASP-2 (Southworth+, 2010)
J/MNRAS/399/287 : Transiting planetary system WASP-4 (Southworth+, 2009)
J/MNRAS/396/1023 : Transiting planetary system WASP-5 (Southworth+, 2009)
J/A+A/527/A8 : Transiting planetary system WASP-7 (Southworth+, 2011)
J/MNRAS/426/1338 : Transiting planetary system WASP-17 (Southworth+, 2012)
J/ApJ/707/167 : Transiting planetary system WASP-18 (Southworth+, 2009)
J/MNRAS/422/3099 : Transits of HAT-P-5 (Southworth+, 2012)
J/MNRAS/420/2580 : Four transits of HAT-P-13 (Southworth+, 2012)
Byte-by-byte Description of file: wasp15gr.dat
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Bytes Format Units Label Explanations
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1 A1 --- Filt [griz] SDSS filter used for the observations
4- 16 F13.5 d BJD Barycentric JD for the midpoint of observation
(TDB)
18- 26 F9.6 mag dmag Differential magnitude
28- 36 F9.6 mag e_dmag Measurement error of differential magnitude
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Byte-by-byte Description of file: wasp15dk.dat wasp16dk.dat
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Bytes Format Units Label Explanations
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1- 13 F13.5 d BJD Barycentric JD for the midpoint of observation
(TDB)
15- 23 F9.6 mag dRmag Differential R-band magnitude
25- 33 F9.6 mag e_dRmag Measurement error of the R-band magnitude
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Acknowledgements:
John Southworth, astro.js(at)keele.ac.uk
(End) John Southworth [Keele Univ., UK], Patricia Vannier [CDS] 12-Dec-2013