J/A+A/525/A66 4 close binaries BVR light curves (Djurasevic+, 2011)
Physical parameters of close binaries QX Andromedae, RW Comae Berenices,
MR Delphini, and BD +07 3142.
Djurasevic G., Yilmaz O., Basturk T., Kilicoglu O., Latkovic O., Caliskan S.
<Astron. Astrophys. 525, A66 (2011)>
=2011A&A...525A..66D 2011A&A...525A..66D
ADC_Keywords: Binaries, eclipsing ; Photometry, CCD ; Photometry, UBVRI
Keywords: binaries: eclipsing - stars: fundamental parameters -
stars: individual: QX And, RW Com, MR Del, BD+07 3142
Abstract:
We analyze new multicolor light curves and recently published radial
velocity curves for close binaries QX And, RW Com, MR Del, and
BD +07 3142 to determine the physical parameters of the components.
The light curves are analyzed using a binary star model based on Roche
geometry to fit the photometric observations. Spectroscopic
parameters, such as the mass ratios and spectral types, were taken
from recent spectroscopic studies of the systems in question.
Description:
The files contain CCD photometric observations of the close binaries
QX And, RW Com, MR Del and BD +07 3142, obtained with the Apogee ALTA
U47 CCD camera attached to the 40cm Schmidt-Cassegrain telescope
located at the Ankara University Observatory (AUG) by using BVR
filters in close accordance with the Johnson-Cousins standard system
Objects:
----------------------------------------------------------
RA (2000) DE Designation(s)
----------------------------------------------------------
01 57 57.8 +37 48 23 QX And = V* QX And
12 33 00.3 +26 42 58 RW Com = V* RW Com
20 31 13.5 +05 13 09 MR Del = V* MR Del
16 20 03.2 +07 07 29 BD +07 3142 = AG+07 2032
----------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
bd.dat 32 1716 BRV data for BD +07 3142
mrdel.dat 32 2571 BRV data for MR Del
qxand.dat 32 3388 BRV data for QX And
rwcom.dat 32 1932 BRV data for RW Com
--------------------------------------------------------------------------------
Byte-by-byte Description of file: *.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1 A1 --- Band [BRV] Observed band
3- 14 F12.4 d HJD Heliocentric Julian date
15- 24 F10.4 --- Phase Orbital phase
25- 32 F8.3 mag Dmag Differential magnitude
--------------------------------------------------------------------------------
Acknowledgements:
Olivia Latkovic, olivia(at)aob.rs
(End) Patricia Vannier [CDS] 27-Aug-2010