J/A+A/579/A136 HAT-P-36 and WASP-11/HAT-P-10 light curves (Mancini+, 2015)
The GAPS Programme with HARPS-N at TNG.
VIII: Observations of the Rossiter-McLaughlin effect and characterisation of
the transiting planetary systems HAT-P-36 and WASP-11/HAT-P-10.
Mancini L., Esposito M., Covino E., Raia G., Southworth J.,
Tregloan-Reed J., Biazzo K., Bonomo A., Desidera S., Lanza A. F.,
Maciejewski G., Poretti E., Sozzetti A., Borsa F., Bruni I., Ciceri S.,
Claudi R., Cosentino R., Gratton R., Martinez Fiorenzano A. F., Lodato G.,
Lorenzi V., Marzari F., Murabito S., Affer L., Bignamini A., Bedin L.R.,
Boccato C., Damasso M., Henning T., Maggio A., Micela G., Molinari E.,
Pagano I., Piotto G., Rainer M., Scandariato G., Smareglia R.,
Zanmar Sanchez, R.
<Astron. Astrophys. 579, A136 (2015)>
=2015A&A...579A.136M 2015A&A...579A.136M
ADC_Keywords: Stars, double and multiple ; Planets ; Photometry
Keywords: planetary systems - stars: fundamental parameters -
techniques: photometric - techniques: radial velocities -
stars: individual: HAT-P-36 - stars: individual: WASP-11/HAT-P-10
Abstract:
Orbital obliquity is thought to be a fundamental parameter in tracing
the physical mechanisms that cause the migration of giant planets from
the snow line down to roughly 10-2au from their host stars. We are
carrying out a large programme to estimate the spin-orbit alignment of
a sample of transiting planetary systems to study what the possible
configurations of orbital obliquity are and whether they correlate
with other stellar or planetary properties.
We determine the true and the projected obliquity of HAT-P-36 and
WASP-11/HAT-P-10 systems, respectively, which are both composed of a
relatively cool star (with effective temperature Teff<6100K) and a
hot-Jupiter planet.
Thanks to the high-resolution spectrograph HARPS-N, we observed the
Rossiter-McLaughlin effect for both systems by acquiring precise
(3-8m/s) radial-velocity measurements during planetary transit events.
We also present photometric observations comprising six light curves
that cover five transit events, which were obtained using three
medium-class telescopes. One transit of WASP-11/HAT-P-10 was followed
simultaneously from two observatories. The three transit light curves
of HAT-P-36 b show anomalies that are attributable to starspot
complexes on the surface of the parent star, in agreement with the
analysis of its spectra that indicates moderate activity
(logR'HK=-4.65dex). By analysing the complete HATNet data set of
HAT-P-36, we estimated the stellar rotation period by detecting a
periodic photometric modulation in the light curve caused by star
spots, obtaining Prot=15.3±0.4days, which implies that the
inclination of the stellar rotational axis with respect to the line of
sight is i=65±34degrees.
We used the new spectroscopic and photometric data to revise the main
physical parameters and measure the sky-projected misalignment angle
of the two systems. We found λ=-14±18° for HAT-P-36 and
λ=-7±5° for WASP-11/HAT-P-10, indicating in both cases
a good spin-orbit alignment. In the case of HAT-P-36, we were also
able to estimate an upper limit of its real obliquity, which turned
out to be <63°.
Description:
3 light curves of three transit events of the extrasolar planet
HAT-P-36b and 3 light curves of two transit events of the extrasolar
planet WASP-11b/HAT-P-10b. Three of the datasets were obtained using
the Zeiss 1.23-m telescope (filter: Cousins I) at the Observatory of
Calar Alto (Spain), two with the Cassini 1.52-m telescope (filter:
Gunn r) at the Astronomical Observatory of Bologna in Loiano (Italy),
and one with the IAC 80-cm telescope (filter: Cousins R) at the Teide
Observatory on the island of Tenerife (Spain).
Objects:
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RA (2000) DE Designation(s) (Period)
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12 33 03.91 +44 54 55.2 HAT-P-36 = TYC 3020-2221-1 (P=1.32734683)
03 09 28.54 +30 40 24.7 WASP-11 = TYC 2340-1714-1 (P=3.72247967)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
h36ca1.dat 37 166 Photometry of HAT-P-36 on 2014-04-14 (I CA 1.23m)
h36ca2.dat 37 145 Photometry of HAT-P-36 on 2014-04-18 (I CA 1.23m)
h36lo.dat 37 98 Photometry of HAT-P-36 on 2013-04-14 (r Loiano 1.5m)
w11ca.dat 37 125 Photometry of WASP-11 on 2014-10-02 (I CA 1.23m)
w11iac.dat 37 179 Photometry of WASP-11 on 2014-10-01 (R IAC 0.80m)
w11lo.dat 37 101 Photometry of WASP-11 on 2009-11-14 (r Loiano 1.5m)
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See also:
J/A+A/554/A28 : Qatar-1 differential light curve (Covino+, 2013)
J/A+A/575/A111 : GAPS V: Global analysis of the XO-2 system (Damasso+, 2015)
J/A+A/575/L15 : TrES-4b (Sozzetti+, 2015)
Byte-by-byte Description of file: h36*.dat w11*.dat
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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) (BJD-2400000)
16- 25 F10.7 mag mag Differential magnitude of the target
29- 37 F9.7 mag e_mag Measurement error of the magnitude
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Acknowledgements:
Luigi Mancini, mancini(at)mpia.de
Max Planck Institute for Astronomy, Germany
References:
Covino et al., Paper I 2013A&A...554A..28C 2013A&A...554A..28C, Cat. J/A+A/554/A28
Desidera et al., Paper II 2013A&A...554A..29D 2013A&A...554A..29D
Esposito et al., Paper III 2014A&A...564L..13E 2014A&A...564L..13E
Desidera et al., Paper IV 2014A&A...567L...6D 2014A&A...567L...6D
Sozzetti et al., Paper VI 2015A&A...575L..15S 2015A&A...575L..15S, Cat. J/A+A/575/L15
Damasso et al., Paper VII 2015A&A...575A.111D 2015A&A...575A.111D, Cat. J/A+A/575/A111
(End) Luigi Mancini [Max Planck Inst.], Patricia Vannier [CDS] 03-Jun-2015