J/A+A/563/A41 WASP-43 OSIRIS transmission spectroscopy (Murgas+, 2014)
The GTC exoplanet transit spectroscopy survey.
I: OSIRIS transmission spectroscopy of the short period planet WASP-43b.
Murgas F., Palle E., Zapatero-Osorio M.R., Nortmann L., Hoyer S.,
Cabrera-Lavers A.
<Astron. Astrophys. 563, A41 (2014)>
=2014A&A...563A..41M 2014A&A...563A..41M
ADC_Keywords: Stars, double and multiple ; Planets ; Spectroscopy
Keywords: planets and satellites: atmospheres -
planets and satellites: gaseous planets - techniques: spectroscopy
Abstract:
We used the Gran Telescopio Canarias (GTC) instrument OSIRIS to obtain
long-slit spectra in the optical range 520-1040nm of the planetary
host star WASP-43 and of a reference star during a full primary
transit event. We integrated the stellar flux of both stars in
different wavelength regions producing several light curves. We
measure a mean planet-to-star radius ratio in the white light curve of
0.15988+0.00133-0.00145. We present a tentative detection in the
planet-to-star radius ratio around the NaI doublet (λ 588.9,
589.5nm) when compared to the nearby continuum at the 2.9-sigma
level. We find no significant excess of the measured planet-to-star
radius ratio around the KI doublet (λ 766.5nm, 769.9nm) when
compared to the nearby continuum.
Description:
We present the white light curve and the curves produced using 25nm
filters, 18nm filters, and 10nm filters of one full transit event of
WASP-43b taken on January 8, 2013.
Objects:
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RA (2000) DE Designation(s)
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10 19 38.01 -09 48 22.6 WASP-43 = GSC 05490-00141
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 50 278 White light curve
table2.dat 44 4448 Light curves produced using 25 nm filters
table3.dat 44 2502 Light curves produced using 18 nm filters
table4.dat 44 9452 Light curves produced using 10 nm filters
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See also:
J/A+A/542/A4 : WASP-43b thirty eclipses (Gillon+, 2012)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 18 F18.10 d BJD Barycentric Julian date
20- 29 F10.8 --- NFlux Normalized flux
31- 38 F8.6 --- e_NFlux rms uncertainty on NFlux
40- 44 F5.3 --- AirM Airmass
46- 50 F5.3 pix FWHM PSF FWHM
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Byte-by-byte Description of file: table2.dat table3.dat table4.dat
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Bytes Format Units Label Explanations
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1- 5 F5.1 nm Band Filter center (1)
7- 24 F18.10 d BJD Barycentric Julian date (UTC)
26- 35 F10.8 --- NFlux Normalized flux
37- 44 F8.6 --- e_NFlux rms uncertainty on NFlux
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Note (1): Filter center:
* for 25nm-width (table2): from 542.5 to 917.5 (16),
* for 18nm-width (table3): from 711.0 to 729.0 (9),
* for 10nm-width (table4): from 659.5 to 879.5 (34).
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Acknowledgements:
Felipe Murgas, murgas_ext(at)iac.es
(End) Felipe Murgas [IAC, Spain], Patricia Vannier CDS 26-Jan-2014