J/MNRAS/420/2580 Four transits of HAT-P-13 (Southworth+, 2012)
Refined physical properties of the HAT-P-13 planetary system.
Southworth J., Bruni I., Mancini L., Gregorio J.
<Mon. Not. R. Astron. Soc., 420, 2580-2587 (2012)>
=2012MNRAS.420.2580S 2012MNRAS.420.2580S
ADC_Keywords: Stars, double and multiple ; Planets ; Photometry
Keywords: stars: fundamental parameters - stars: individual: HAT-P-13 -
planetary systems
Abstract:
We present photometry of four transits of the planetary system
HAT-P-13, obtained using defocused telescopes. We analyse these, plus
nine data sets from the literature, in order to determine the physical
properties of the system. The mass and radius of the star are
MA=1.320±0.048±0.039M_☉ and
RA=1.756±0.043±0.017R☉ (statistical and systematic error
bars). We find the equivalent quantities for the transiting planet to
be Mb=0.906±0.024±0.018MJup and
Rb=1.487±0.038±0.015RJup, with an equilibrium temperature of
T'eq=1725±31K. Compared to previous results, which were based on
much sparser photometric data, we find the star to be more massive and
evolved, and the planet to be larger, hotter and more rarefied.
Description:
Two full transits of HAT-P-13 were observed with the BFOSC imager
mounted on the 1.52-m G. D. Cassini Telescope at Loiano Observatory,
Italy. We used a Gunn i filter and autoguided throughout. Observations
were made on 2011/02/06 and 2011/04/17 at Loiano, and 2011/01/31 and
2011/02/03 at Portalegre.
Objects:
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RA (2000) DE Designation(s)
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08 39 31.81 +47 21 07.3 HAT-P-13 = TYC 3416-543-1
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
hatp13lo.dat 33 274 Defocussed photometry for transiting extrasolar
planetary system HAT-P-13, Gunn i passband
hatp13po.dat 33 247 Defocussed photometry for transiting extrasolar
planetary system HAT-P-13, Cousins I passband
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See also:
J/ApJ/707/446 : HAT-P-13 photometry follow-up (Bakos+, 2009)
J/A+A/523/A84 : Transit light curves of HAT-P-13b (Szabo+, 2010)
J/AJ/141/179 : Transits of TrES-4b, HAT-P-3b and WASP-12b (Chan+, 2011)
Byte-by-byte Description of file: hatp13lo.dat hatp13po.dat
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Bytes Format Units Label Explanations
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1- 11 F11.5 d BJD Barycentric Julian date (BJD-2400000)
13- 21 F9.6 mag dmag Differential magnitude
24- 31 F8.6 mag e_dmag rms uncertainty on dmag
33 A1 --- Band [iI] Band for differential magnitude (1)
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Note (1): Bands are:
i = Gunn i passband using the BFOSC CCD imager on the Loiano 1.5m
telescope near Bologna, Italy.
I = Cousins I passband using a 30cm Schmidt-Cassegrain telescope in
Portalegre, Portugal, by Joao Gregorio
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History:
Copied at http://www.astro.keele.ac.uk/~jkt/data-teps.html
(End) Patricia Vannier [CDS] 02-Oct-2012