J/MNRAS/386/521 BV(RI)c light curves of BS Com (Dekany+, 2008)
Pulsational and evolutionary analysis of the double-mode RR Lyrae star BS Com.
Dekany I., Kovacs G., Jurcsik J., Szabo R., Varadi M., Sodor A.,
Posztobanyi K., Hurta Zs., Vida K., Vityi N., Szing A.
<Mon. Not. R. Astron. Soc. 386, 521 (2008)>
=2008MNRAS.386..521D 2008MNRAS.386..521D
ADC_Keywords: Stars, variable ; Photometry, CCD ; Photometry, UBVRI ;
Photometry, Cousins
Keywords: stars: abundances - stars: evolution - stars: fundamental parameters -
stars: individual: BS Com - stars: oscillations -
stars: variables: other
Abstract:
We derive the basic physical parameters of the field double-mode RR
Lyrae star BS Com from its observed periods and the requirement of
consistency between the pulsational and evolutionary constraints.
We performed a standard frequency analysis on the V data by discrete
Fourier transformation. We derived P0=0.48791d and P1=0.36307d for the
periods of the fundamental and the first overtone modes, respectively.
Description:
Extended BV(RI)c photometric data of the double-mode RR Lyrae star BS
Comae are presented. The observations were obtained with the automated
60 cm telescope of Konkoly Observatory, Svabhegy, Budapest, equipped
with a Wright 750x1100 CCD, between 2005 March 1 and 2006 April 17. BS
Com magnitudes are measured relative to BD+24 2598 by aperture
photometry.
Objects:
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RA (2000) DE Designation(s)
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13 34 39.2 +24 16 38 BS Com = GSC 01997-00754
13 34 19.5 +24 12 18 BD+24 2598 = GSC 01997-00780
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 23 568 BS Com B magnitudes relative to BD+24 2598
tablea2.dat 23 970 BS Com V magnitudes relative to BD+24 2598
tablea3.dat 23 924 BS Com Rc magnitudes relative to BD+24 2598
tablea4.dat 23 935 BS Com Ic magnitudes relative to BD+24 2598
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Byte-by-byte Description of file: table*.dat
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Bytes Format Units Label Explanations
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1- 12 F12.4 d HJD Heliocentric Julian Date
15 A1 --- Band [BVRI] Photometric Johnson/Cousins band
18- 23 F6.4 mag Dmag Differential magnitude in "Band" band
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Acknowledgements:
Istvan Dekany, dekany(at)konkoly.hu
(End) Istvan Dekany [Konkoly Observatory], Patricia Vannier [CDS] 09-Apr-2008