J/A+A/520/A108 CoRoT 101128793 light curves (Poretti+, 2010)
CoRoT light curves of RR Lyrae stars.
CoRoT 101128793: long-term changes in the Blazhko effect and excitation of
additional modes.
Poretti E., Paparo M., Deleuil M., Chadid M., Kolenberg K., Szabo R.,
Benko J.M., Chapellier E., Guggenberger E., LeBorgne J.F., Rostagni F.,
Trinquet H., Auvergne M., Baglin A., Sarro L.M., Weiss W.W.
<Astron. Astrophys. 520, A108 (2010)>
=2010A&A...520A.108P 2010A&A...520A.108P
ADC_Keywords: Stars, variable ; Photometry
Keywords: stars: variables: RR Lyrae - stars: oscillations - stars: interiors -
stars: individual: CoRoT 101128793 - techniques: photometric
Abstract:
The CoRoT (Convection, Rotation and planetary Transits) space mission
provides a valuable opportunity to monitor stars with uninterrupted
time sampling for up to 150 days at a time. The study of RR Lyrae
stars, performed in the framework of the Additional Programmes
belonging to the exoplanetary field, will particularly benefit from
such dense, long-duration monitoring. We used the CoRoT data of the
new RR Lyrae variable CoRoT 101128793 (f0=2.119c/d, P=0.4719296d) to
provide us with more detailed observational facts to understand the
physical process behind the Blazhko phenomenon. The CoRoT data were
corrected for one jump and the long term drift. We detected 79
frequencies in the light curve of CoRoT 101128793. The timeseries
presented here can be used to identify the main frequency f0, its
harmonics, the terms related to the Blazhko frequency f_m, two
independent terms, and several combination terms. All the 79
frequencies are listed in the file table1.dat.
The times of maxima are listed in the file table2.dat.
Description:
The file phot.dat contains 20898 datapoints. Outliers were removed and
the original CoRoT measurements were corrected for two instrumental
effects: a 0.032mag jump occurring at 2454369.7 and the long-term
instrumental drift.
Objects:
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RA (2000) DE Designation(s)
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19 26 37.32 +01 13 34.9 CoRoT 101128793 = CoRoT 101128793
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
phot.dat 23 20898 List of data
table1.dat 59 79 List of frequencies
table2.dat 35 301 List of times of maxima
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See also:
B/corot : CoRoT observation log Release 5 (CoRoT, 2010)
J/A+A/506/79 : Asteroseismic analysis of HD 174936 (Garcia Hernandez+, 2009)
J/A+A/506/85 : HD 50844 observed by CoRoT (Poretti+, 2009)
J/A+A/506/95 : Fourier analysis of HD 49330 CoRoT light curve (Huat+, 2009)
J/A+A/506/465 : Solar-like oscillations in red giants (Hekker+, 2009)
J/A+A/506/111 : Frequency analysis of HD 180642 (V1449 Aql) (Degroote+, 2009)
J/A+A/506/143 : Pulsations of HD 181231 (Neiner+, 2009)
J/A+A/506/471 : Frequency analysis of CoRoT B stars (Degroote+, 2009)
J/A+A/510/A39 : CoRoT light curves of V1127 Aql (Chadid+, 2010)
J/A+A/511/A3 : Light curves of CoRoT-2 in z-band, 4.5um and 8um (Gillon+ 2010)
Byte-by-byte Description of file: phot.dat
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Bytes Format Units Label Explanations
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2- 11 F10.5 d HJD Observation date (HJD-2450000.0)
15- 23 F9.6 mag mag Magnitude
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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2- 11 F10.7 d-1 Freq Detected frequency
16- 23 F8.6 mag Amp Amplitude
28- 33 F6.4 rad Phase Phase value (T0=2454308.2168), cosine series
37- 42 F6.3 --- S/N Signal-to-noise ratio
45- 59 A15 --- Mode Pulsation mode identification
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Cycle Cycle counter
7- 15 F9.4 d Tmax Time of maximum brightness, HJD-2450000
18- 24 F7.4 mag magmax Magnitude at the maximum
29- 35 F7.4 d O-C O-C with respect to the ephemeris for
time of maximum, HJD
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Acknowledgements:
Ennio Poretti, ennio.poretti(at)brera.inaf.it
(End) Ennio Poretti [INAF-OA Brera, Italy], Patricia Vannier [CDS] 29-Jun-2010