J/A+A/556/A56 KIC 11285625: list of detected frequencies (Debosscher+, 2013)
KIC 11285625: a double-lined spectroscopic binary with a gamma Dor pulsator
discovered from Kepler space photometry.
Debosscher J., Aerts C., Tkachenko A., Pavlovski K., Maceroni C., Kurtz D.,
Beck P. G., Bloemen S., Degroote P., Lombaert R., Southworth, J.
<Astron. Astrophys. 556, A56 (2013)>
=2013A&A...556A..56D 2013A&A...556A..56D
ADC_Keywords: Binaries, eclipsing ; Binaries, spectroscopic ; Stars, variable
Keywords: Stars: oscillations - binaries: eclipsing - binaries: spectroscopic -
techniques: photometric - stars: fundamental parameters -
stars: rotation
Abstract:
We present the first binary modelling results for the pulsating
eclipsing binary KIC 11285625, discovered by the Kepler mission. An
automated method to disentangle the pulsation spectrum and the orbital
variability in high quality light curves, was developed and applied.
The goal was to obtain accurate orbital and component properties, in
combination with essential information derived from spectroscopy. A
binary model for KIC 11285625 was obtained, using a combined analysis
of high-quality space-based Kepler light curves and ground-based
high-resolution HERMES echelle spectra. The binary model was used to
separate the pulsation characteristics from the orbital variability in
the Kepler light curve in an iterative way. We used an automated
procedure to perform this task, based on the JKTEBOP binary modelling
code, and adapted codes for frequency analysis and prewhitening of
periodic signals. Using a disentangling technique applied to the
composite HERMES spectra, we obtained a higher signal-to-noise mean
component spectrum for both the primary and the secondary. A model
grid search method for fitting synthetic spectra was used for
fundamental parameter determination for both components. Accurate
orbital and component properties of KIC 11285625 were derived, and we
have obtained the pulsation spectrum of the gamma Dor pulsator in the
system. Detailed analysis of the pulsation spectrum revealed amplitude
modulation on a time scale of a hundred days, and strong indications
of frequency splittings at both the orbital frequency, and the
rotational frequency derived from spectroscopy.
Description:
List of frequencies, their amplitudes and S/N, detected in the Kepler
(quarters Q0-Q10) light curve of KIC 11285625, after iterative removal
of the binary model. The data and the methods used are described in
detail in the paper.
Objects:
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RA (2000) DE Designation(s)
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19 00 51.89 +49 05 22.1 KIC 11285625 = KIC 11285625
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
freqs.dat 31 6172 List of detected frequencies
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See also:
B/vsx : AAVSO International Variable Star Index VSX (Watson+, 2006-13)
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
J/AJ/142/160 : Kepler Mission. II. 2165 eclipsing binaries (Slawson+, 2011)
J/ApJS/199/24 : The first three quarters of Kepler mission (Tenenbaum+, 2012)
J/ApJS/199/30 : Effective temperature scale for KIC stars (Pinsonneault+, 2012)
J/PASP/124/1279 : Q3 Kepler's combined photometry (Christiansen+, 2012)
J/A+A/556/A52 : gamma Dor stars sample for asteroseismology (Tkachenko+, 2013)
Byte-by-byte Description of file: freqs.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq Frequency number
6- 16 F11.8 d-1 Freq Frequency value in cycles per day
18- 25 F8.5 mmag Amp Amplitude in millimagnitude
27- 31 F5.1 --- S/N Signal-to-noise ratio
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Acknowledgements:
Jonas Debosscher, jonas(at)ster.kuleuven.be
(End) Jonas Debosscher [IVS, KULeuven], Emmanuelle Perret [CDS] 04-Jun-2013