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J/A+A/497/481       UBV(RI)c time series of V372 Ser        (Benko+, 2009)

Five colour photometry of the RRd star V372 Serpentis. Benko J.M., Barcza S. <Astron. Astrophys., 497, 481-485 (2009)> =2009A&A...497..481B
ADC_Keywords: Stars, variable ; Photometry, UBVRI Keywords: stars: variables: RR Lyr - stars: fundamental parameters - stars: individual: V372 Ser Abstract: The first UBV(RI)_C time series photometry of the RRd star V372 Ser is presented to determine some parameters of the star. In April, May 2007 2812 U, B, V, R_C, I_C frames were obtained at Konkoly and Teide Observatories, 1508 V observations were collected from the literature. Fourier fitted light curves have been derived in all bands. The non-linearly coupled frequencies f_0=(2.121840±.000001)c/day, f1=(2.851188±.000001)c/d, i.e. periods P0=0.4712891±.0000002days, P1=0.3507310±.0000001d, P1/P0=0.7441950, amplitudes A0(V)=0.15399mag, A1(V)=0.20591mag, and phases have been found. A1/A0=1.319±.008 has been found from averaging the amplitude ratio in the different bands i.e. the first overtone is the dominant pulsation mode. From the V observations upper limits are given for secular change of the Fourier parameters. The period ratio and period put V372 Ser among the RRd stars of the globular clusters M3 and IC 4499, mass, luminosity, and metallicity estimates are given. Description: Photometric UBV(RI)c Johnson-Cousins time series of the bright double mode RR Lyrae star V372 Ser are presented. Objects: --------------------------------------------------- RA (2000) DE Designation(s) --------------------------------------------------- 15 17 35.0 -01 05 17 V372 Ser = NSVS 13399252 --------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file phot.dat 33 2812 Johnson UBV and Cousins RI CCD photometric data of V372 Ser
Byte-by-byte Description of file: phot.dat
Bytes Format Units Label Explanations
1 A1 --- Filt [UBVRI] Filter 3- 14 F12.4 d HJD Heliocentric Julian Date 17- 22 F6.4 --- X Mid airmass 25- 30 F6.3 mag UBVRI Apparent U,B,V,R,I brightness 33 I1 --- Q [0/1] Quality flag (0 = OK, 1 = not used)
Acknowledgements: Jozsef Benko, benko(at)szombat.konkoly.hu
(End) Jozsef Benko [Konkoly Obs., Hungary], Patricia Vannier [CDS] 14-May-2009
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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