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J/ApJ/833/170  Spots parameters for LCs of the EB star KIC 6048106  (Lee, 2016)

γ Doradus pulsations in the eclipsing binary star KIC 6048106. Lee J.W. <Astrophys. J., 833, 170-170 (2016)> =2016ApJ...833..170L (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, eclipsing ; Photometry Keywords: binaries: eclipsing; stars: individual: KIC 6048106; stars: oscillations including pulsations; starspots Abstract: We present the Kepler photometry of KIC 6048106, which is exhibiting the O'Connell effect and multiperiodic pulsations. Including a starspot on either of the components, light-curve synthesis indicates that this system is a semi-detached Algol with a mass ratio of 0.211, an orbital inclination of 73.9°, and a large temperature difference of 2534K. To examine in detail both the spot variations and pulsations, we separately analyzed the Kepler time-series data at the interval of an orbital period in an iterative way. The results reveal that the variable asymmetries of the light maxima can be interpreted as the changes with time of a magnetic cool spot on the secondary component. Multiple frequency analyses were performed in the outside-eclipse light residuals after removal of the binarity effects from the observed Kepler data. We detected 30 frequencies with signal to noise amplitude ratios larger than 4.0, of which six (f2-f6 and f10) can be identified as high-order (17≤n≤25) low-degree (l=2) gravity-mode pulsations that were stable during the observing run of 200 days. In contrast, the other frequencies may be harmonic and combination terms. For the six frequencies, the pulsation periods and pulsation constants are in the ranges of 0.352-0.506 days and 0.232-0.333 days, respectively. These values and the position on the Hertzsprung-Russell diagram demonstrate that the primary star is a γ Dor variable. The evolutionary status and the pulsation nature of KIC 6048106 are discussed. Description: KIC 6048106 was observed in a long cadence (LC) mode of 29.42min during Quarters 14 and 15 (June and October 2012) by the Kepler satellite. For this study, we used the simple aperture photometry data detrended in the Kepler EB catalog (Prsa+ 2011, J/AJ/141/83 superseded by Slawson+ 2011, J/AJ/142/160). Objects: --------------------------------------------------------------------- RA (ICRS) DE Designation(s) (Period) --------------------------------------------------------------------- 19 34 14.03 +41 23 43.3 KIC 6048106 = KIC 6048106 (P=1.559359) --------------------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 32 113 Epoch and spot parameters for each light curve of KIC 6048106
See also: V/133 : Kepler Input Catalog (Kepler Mission Team, 2009) J/ApJS/224/19 : The KepVIM catalog (Makarov+, 2016) J/ApJS/224/12 : Kepler planetary candidates. VII. 48-month (Coughlin+, 2016) J/AJ/151/68 : Kepler Mission. VII. Eclipsing binaries in DR3 (Kirk+, 2016) J/AJ/149/68 : A-F type variable stars from Kepler (Bradley+, 2015) J/ApJ/820/1 : Kepler light curve of the EB star KIC 9532219 (Lee+, 2016) J/ApJ/812/46 : Transit metric for Q1-Q17 Kepler candidates (Thompson+, 2015) J/ApJS/211/2 : Revised properties of Q1-16 Kepler targets (Huber+, 2014) J/AJ/142/160 : Kepler Mission. II. Eclipsing binaries in DR2 (Slawson+, 2011) J/AJ/141/83 : Kepler Mission. I. Eclipsing binaries in DR1 (Prsa+, 2011) J/MNRAS/373/435 : Angular momentum of Algol binaries (Ibanoglu+, 2006) J/AJ/129/2815 : Eleven new γ Doradus variables (Henry+, 2005) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 13 F13.5 d BJD Barycentric Julian Date of observation 15- 20 F6.2 deg lambda [14.5/131.8] Spot longitude 22- 26 F5.2 deg rs [11/13.4] Spot angular radius 28- 32 F5.3 --- Ts [0.82/0.97] Temperature factor
History: From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 25-Apr-2017
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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