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J/A+A/527/A136      HD 116956 V-band differential light curve  (Lehtinen+, 2011)

The continuous period search method and its application to the young solar analogue HD 116956. Lehtinen J., Jetsu L., Hackman T., Kajatkari P., Henry G.W. <Astron. Astrophys. 527, A136 (2011)> =2011A&A...527A.136L
ADC_Keywords: Stars, variable Keywords: methods: data analysis - stars: activity - starspots - stars: individual: HD 116956 - stars: rotation Abstract: We formulate an improved time series analysis method for the analysis of photometry of active stars. This new continuous period search (CPS) method is applied to 12 years of V band photometry of the young solar analogue HD 116956 (NQ UMa). Description: The included files present the numerical data of our CPS analysis of the young solar analogue HD 116956 photometry. The data consists of differential Johnson V-band photometry using the star HD 114446 as the comparison star. The CPS method is described in detail in our present paper. For a thorough description of the formatting of the numerical results provided by the CPS, see the appendix A of our paper. Objects: ------------------------------------------------ RA (2000) DE Designation(s) ------------------------------------------------ 13 25 45.5 +56 58 14 HD 116956 = V* NQ UMa ------------------------------------------------ File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file hd116956.dat 19 1408 Differential photometry of HD 116956 results.dat 176 694 *Numerical results of the CPS analysis
Note on results.dat: Continuous Period Search: each line consists of numerical results for one single dataset.
Byte-by-byte Description of file: hd116956.dat
Bytes Format Units Label Explanations
1- 12 F12.4 d HJD Heliodentric Julian Date 15- 19 F5.3 mag DVmag Differential V-band photometry
Byte-by-byte Description of file: results.dat
Bytes Format Units Label Explanations
1- 2 I2 --- SEG [1/12] Segment number 5- 14 F10.4 d t0 1st timepoint in SEG (1) 16- 17 I2 --- SET [1/89] Dataset number 19- 28 F10.4 d t1 1st timepoint in SET (1) 30- 39 F10.4 d tn Last timepoint in SET (1) 41- 50 F10.4 d tau Mean epoch of SET τ (1) 52 I1 --- IND [0/1] Independency of SET: 1=independent 54- 55 I2 --- n [10/32] Number of observations in SET 57- 62 F6.4 mag my [0.23/0.27] Mean of observations in SET 64- 69 F6.4 mag s_my [0.004/0.024] Stdev of observations in SET 71 I1 --- K [1/2] Light curve modelling order 73- 78 F6.4 mag se [0.0009/0.0121] Stdev of residuals 80- 87 F8.4 d TC [-2/141]?=-1 Timescale of change (2) 89- 94 F6.4 mag M [0.23/0.27] Light curve mean 96-101 F6.4 mag e_M [0.0003/0.0035] Error of M 103 I1 --- q_M [0/1] Reliability of M (1=unreliable) 105-110 F6.4 d Per [6.43/9.22] Period of light curve 112-117 F6.4 d e_Per [0.01/0.88] Error of Per 119 I1 --- q_Per [0/1] Reliability of Per (1=unreliable) 121-126 F6.4 mag Amp [0.010/0.077] Light curve amplitude 128-133 F6.4 mag e_Amp [0.0009/0.011] Error of Amp 135 I1 --- q_Amp [0/1] Reliability of Amp (1=unreliable) 137-146 F10.4 d tmin1 Epoch of the primary minimum (1) 148-153 F6.4 d e_tmin1 Error of tmin1 155 I1 --- q_tmin1 [0/1] Reliability of tmin1 (1=unreliable) 157-166 F10.4 d tmin2 ?=-1 Epoch of the secondary minimum (1) 168-174 F7.4 d e_tmin2 ?=-1 Error of tmin2 176 I1 --- q_tmin2 [0/1] Reliability of tmin2 (1=unreliable)
Note (1): All timepoints are Heliocentric Julian Dates given in format HJD-2400000. Note (2): The special value TC=-2 indicates that the computation process hits the end of the segment.
Acknowledgements: Jyri Lehtinen, jyri.j.lehtinen(at)
(End) Patricia Vannier [CDS] 20-Dec-2010
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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