J/MNRAS/459/1393 Multi-band light curve of WASP-36 (Mancini+, 2016)
An optical transmission spectrum of the giant planet WASP-36 b.
Mancini L., Kemmer J., Southworth J., Bott K., Molliere P., Ciceri S.,
Chen G., Henning T.
<Mon. Not. R. Astron. Soc. 459, 1393 (2016)>
=2016MNRAS.459.1393M 2016MNRAS.459.1393M (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Planets ; Photometry, SDSS
Keywords: techniques: photometric - stars: fundamental parameters -
stars: individual: WASP-36 - planetary systems
Abstract:
We present broad-band photometry of five transits in the planetary
system WASP-36, totaling 17 high-precision light curves. Four of the
transits were simultaneously observed in four passbands (g', r', i',
z'), using the telescope-defocussing technique, and achieving scatters
of less than 1 mmag per observation. We used these data to improve the
measured orbital and physical properties of the system, and obtain an
optical transmission spectrum of the planet. We measured a decreasing
radius from bluer to redder passbands with a confidence level of more
than 5 sigma. The radius variation is roughly 11 pressure scale
heights between the g' and the z' bands. This is too strong to be
Rayleigh scattering in the planetary atmosphere, and implies the
presence of a species which absorbs strongly at bluer wavelengths.
Description:
17 light curves of five transits of the extrasolar planetary system
WASP-36, observed between 2012 and 2015, are presented. Four of the
transits were observed simultaneously in the SDSS griz passbands using
the seven-beam GROND imager on the MPG 2.2-m telescope. A fifth was
observed in Cousins R with the CAHA 1.23-m telescope.
Objects:
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RA (2000) DE Designation(s)
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08 46 19.30 -08 01 36.7 WASP-36 = 2MASS J08461929-0801370
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 102 17 Details of the transit observations presented
in this work
phot/* . 17 Individual light curves
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See also:
J/ApJ/707/167 : Transiting planetary system WASP-18 (Southworth+, 2009)
J/MNRAS/396/1023 : Transiting planetary system WASP-5 (Southworth+, 2009)
J/MNRAS/399/287 : Transiting planetary system WASP-4 (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/426/1338 : Transiting planetary system WASP-17 (Southworth+, 2012)
J/A+A/551/A108 : Multi-site obs. of WASP-12 b transit (Maciejewski+, 2013)
J/A+A/557/A30 : Transits of HAT-P-16 and WASP-21 (Ciceri+, 2013)
J/MNRAS/434/1300 : WASP-15 and WASP-16 light curves (Southworth+, 2013)
J/MNRAS/436/2 : Transits of WASP-19b (Mancini+, 2013)
J/MNRAS/444/776 : Transiting planets WASP-24, 25 and 26 (Southworth+, 2014)
J/A+A/562/A126 : Light curves of WASP-80 transit events (Mancini+, 2014)
J/A+A/563/A40 : WASP-43b g'r'i'z'JHK light curves (Chen+, 2014)
J/A+A/568/A127 : Light curves of WASP-67 transit events (Mancini+, 2014)
J/A+A/577/A54 : HAT-P23 and WASP-48 light curves (Ciceri+, 2015)
J/A+A/579/A136 : HAT-P-36 and WASP-11/HAT-P-10 light curves (Mancini+, 2015)
J/A+A/580/A63 : HATS-13b and HATS-14b light and RV curves (Mancini+, 2015)
J/MNRAS/430/2932 : WASP-44 griz light curves (Mancini+, 2013)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Tel Telescope
10- 19 A10 "date" Obs.date Date of first observation
21- 25 A5 "h:m" TimeS Start time (UT)
27- 31 A5 "h:m" TimeE End time (UT)
33- 35 I3 --- Nobs Number of observations
37- 39 I3 s Texp Exposure time
41- 43 I3 s Tobs Observational cadence
45- 53 A9 --- Filter Filter
55- 72 A18 --- Airmass Airmass
74- 75 I2 % Moon Gractional illumination of the Moon at
midnight (UT)
77- 78 I2 pix Rad1 Radius of the software aperture for the star
80- 81 I2 pix Rad2 Radius of the software aperture for the
inner sky
83- 85 I3 pix Rad3 Radius of the software aperture for the
outer sky
87- 90 F4.2 mmag Scatter rms scatter of the data versus a fitted model
92-102 A11 --- FileName Name of the file with photometry in
subdirectory phot
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Byte-by-byte Description of file: phot/*
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Bytes Format Units Label Explanations
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1- 13 F13.7 d BJD Barycentric JD for the midpoint of observation (TDB)
16- 25 F10.7 mag mag Differential magnitude of the target
28- 36 F9.7 mag e_mag Measurement error of the magnitude
39 A1 --- Band [Rgriz] Observed band
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Acknowledgements:
Luigi Mancini, mancini(at)mpia.de
Max Planck Institute for Astronomy, Germany
(End) L. Mancini [Max Planck Inst. for Astronomy], P. Vannier [CDS] 31-May-2016