J/MNRAS/391/164 MW Lyr BV(RI)c light curves (Jurcsik+, 2008)
An extensive photometric study of the Blazhko RR Lyrae star MW Lyr.
I. Light-curve solution.
Jurcsik J., Sodor A., Hurta Zs., Varadi M., Szeidl B., Smith H.A.,
Henden A., Dekany I., Nagy I., Posztobanyi K., Szing A., Vida K., Vityi N.
<Mon. Not. R. Astron. Soc., 391, 164-177 (2008)>
=2008MNRAS.391..164J 2008MNRAS.391..164J
ADC_Keywords: Stars, variable ; Photometry, UBVRI ; Photometry, Cousins
Keywords: methods: data analysis - techniques: photometric -
stars: horizontal branch - stars: individual: MW Lyr -
stars: oscillations - stars: variables: other
Abstract:
We have obtained the most extensive and most accurate photometric data
of a Blazhko variable MW Lyrae (MW Lyr) during the 2006-2007 observing
seasons. The data within each 0.05 phase bin of the modulation period
(Pm=1/fm) cover the entire light cycle of the primary pulsation
period (P0=1/f0) , making possible a very rigorous and complete
analysis.
Description:
The major part of the observations were obtained with the automated
60-cm telescope of the Konkoly Observatory, Svabhegy, Budapest,
equipped with a Wright Instruments 750x1100 CCD camera. Measurements
were taken on 177 nights between 2006 May and 2007 July. CCD
observations with the 60-cm telescope of the Michigan State University
equipped with an Apogee Ap47p CCD camera and with the 1-m RCC
telescope of the Konkoly Observatory equipped with a Princeton
Instruments VersArray 1300B CCD camera were obtained on six and three
additional nights in 2006 July and in 2007 August, respectively.
Johnson-Cousins BVIC filters were used in all the observations.
Objects:
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RA (2000) DE Designation(s)
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18 19 53.83 +31 58 54.6 MW Lyr = GSC 02627-00599
18 19 56.80 +31 58 13.3 C0 = GSC2 N0223233663
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 49 5796 Time series of the V magnitude and colour
differences of MW Lyrae relative to the
comparison star C0 (GSC2.2 N0223233663)
table3.dat 19 88 MW Lyr maximum timings and brightness values
derived from the V light curve
tables1a.dat 117 881 Photometric BVRcIcC sequence in the field of
MW Lyr (A. Henden)
tables2a.dat 28 5840 MW Lyr deltaB time series
tables2b.dat 28 352 MW Lyr deltaRc time series
tables2c.dat 28 5713 MW Lyr deltaIc time series
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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- 13 F13.5 d HJD Heliocentric Julian date
17- 21 F5.3 mag dVmag Differential Johnson V magnitude
25- 30 F6.3 mag d(B-V) ?=99.999 Differential Johnson B-V colour index
33- 38 F6.3 mag d(V-Rc) ?=99.999 Differential Johnson-Cousins V-Rc
colour index
41- 46 F6.3 mag d(V-Ic) ?=99.999 Differential Johnson-Cousins V-Ic
colour index
49 I1 --- Obs [1/3] Observatory/telescope code (G1)
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 11 F11.3 d HJD Heliocentric Julian date
13- 17 F5.3 mag dVmax Differential maximum V magnitude (MW Vir - C0)
19 A1 --- u_dVmax Uncertainty flag on dVmax
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Byte-by-byte Description of file: tables1a.dat
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Bytes Format Units Label Explanations
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1- 10 F10.6 deg RAdeg Right ascension in decimal degrees (J2000)
12- 16 F5.3 deg e_RAdeg rms uncertainty on RAdeg
18- 26 F9.6 deg DEdeg Declination in decimal degrees (J2000)
28- 32 F5.3 deg e_DEdeg rms uncertainty on DEdeg
34 I1 --- Nobs Number of observations
36- 41 F6.3 mag Vmag Johnson V magnitude
43- 47 F5.3 mag B-V Johnson B-V colour index
49- 54 F6.3 mag U-B ?=99.999 Johnson U-B colour index
56- 61 F6.3 mag V-Rc ?=99.999 Johnson-Cousins V-Rc colour index
63- 68 F6.3 mag Rc-Ic ?=99.999 Cousins R-I colour index
70- 75 F6.3 mag V-Ic ?=99.999 Johnson-Cousins V-Ic colour index
77- 82 F6.3 mag e_Vmag rms uncertainty on Vmag
84- 89 F6.3 mag e_B-V rms uncertainty on B-V
91- 96 F6.3 mag e_U-B ?=-9.999 rms uncertainty on U-B
98-103 F6.3 mag e_V-Rc ?=-9.999 rms uncertainty on V-Rc
105-110 F6.3 mag e_Rc-Ic ?=-9.999 rms uncertainty on Rc-Ic
112-117 F6.3 mag e_V-Ic ?=-9.999 rms uncertainty on V-Ic
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Byte-by-byte Description of file: tables2*
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Bytes Format Units Label Explanations
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1- 13 F13.5 d HJD Heliocentric Julian date
16 A1 --- Band [BRI] Band
19- 23 F5.3 mag dmag Differential maximum magnitude in Band
28 I1 --- Obs [1/3] Observatory/telescope code (G1)
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Global notes:
Note (G1): Observatory/telescope code as follows:
1 = Konkoly 60cm
2 = MSU 60cm
3 = Konkoly 1m
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 27-Mar-2009