J/A+A/350/513 V368 Cep UBVRI time series (Kahanpaa+, 1999)
Time series analysis of V368 Cephei photometry
Kahanpaa J., Jetsu L., Alha L., Ezhkova O.V., Grankin K.N., Hackman T.,
Ibragimov M.A., Kokko M., Kondratiev V.B., Laakso T., Lindroos O.,
Mel'nikov S.Yu., Nikula P.O., Schultz J., Shevchenko V.S., Torppa J.,
Tuominen I., Tyynela J., Virtanen J.
<Astron. Astrophys. 350, 513 (1999)>
=1999A&A...350..513K 1999A&A...350..513K
ADC_Keywords: Stars, variable ; Photometry, UBVRI
Keywords: stars: variables: general - stars: individual: V368 Cep -
techniques: photometric
Abstract:
Our time series analysis of V368 Cep photometry ascertains the
rotation period of 2.74d uniquely. The manifestations of starspot
induced luminosity variations in this chromospherically active star
include rapid light curve changes and differential rotation of about
3%. We conclude that the single rapidly rotating variable V368 Cep is
a high inclination K1V post T Tauri star.
Objects:
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RA (2000) DE Designation(s)
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23 19 26.6 +79 00 13 V368 Cep = HD 220140
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 54 162 The collected photometry of V368 Cep
table5.tex 72 200 LaTeX version of table 5
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1 I1 --- Set [1/9] Set number
3- 14 F12.4 d HJD Observing time
16- 21 F6.3 mag Umag ? U magnitude (1)
23- 27 F5.3 mag Bmag ? B magnitude (1)
29- 33 F5.3 mag Vmag ? V magnitude (1)
35- 40 F6.3 mag Rmag ? R magnitude (1)
42- 47 F6.3 mag Imag ? I magnitude (1)
49- 54 A6 --- Flare Detected flares
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Note (1): The standard Johnson UBVRI magnitudes are given, except for
SET=3, 4 and 5, which contain magnitude differences between
V368 Cep and HD219522 in standard Johnson U and Cousins (RI)C.
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Acknowledgements: Lauri Jetsu
(End) Patricia Bauer [CDS] 10-Sep-1999