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J/PASP/108/332      Photometric analysis of contact binaries (Lapasset+ 1996)

Photometric analyses of the short-period contact binaries HY Pavonis, AW Virginis, and BP Velorum Lapasset E., Gomez M., Farinas R. <Publ. Astron. Soc. Pac. 108, 332 (1996)> =1996PASP..108..332L
ADC_Keywords: Binaries, eclipsing ; Photometry Abstract: We present BV light-curve synthetic analyses of three short-period contact (W UMa) binaries: HY Pavonis (P≃0.35days), AW Virginis (P≃0.35days), and BP Velorum (P≃0.26days). Different possible configurations for wide range of the mass ratio were explored in each case making use of the Wilson-Devinney code. The photometric parameters of the systems were determined from the synthetic light-curve solutions that best fit the observations. AW Vir has two components of very similar temperatures and therefore the subtype (A or W) remains undetermined. HY Pav and BP Vel are best modeled by W-type configurations and the asymmetries in the light curves are reproduced by introducing cool spots on the more massive secondary components. Although BP Vel lies in the region of the open cluster Cr 173, its distance modulus, in principle, rules it out as a cluster member. Objects: ---------------------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------------------- 20 23 47 -73 42.2 HY Pav 13 27 32 +03 02.5 AW Vir 08 18 07 -45 23.5 BP Vel ---------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1a.dat 30 653 Individual observations of HY Pavonis table1b.dat 30 606 Individual observations of AW Virginis table1c.dat 30 537 Individual observations of BP Velorum table3a.dat 20 59 HY Pavonis normal points table3b.dat 20 61 AW Virginis normal points table3c.dat 20 67 BP Velorum normal points
Byte-by-byte Description of file: table1a.dat table1b.dat table1c.dat
Bytes Format Units Label Explanations
1- 9 F9.4 d HJD-2440000 HJD of observation (-2440000) 11- 16 F6.4 --- Phase [0/1[ Phase 18- 23 F6.3 mag dV Differential (Var-Comp) V magnitude 25- 30 F6.3 mag dB Differential (Var-Comp) B magnitude
Byte-by-byte Description of file: table3a.dat table3b.dat table3c.dat
Bytes Format Units Label Explanations
1- 6 F6.4 --- Phase [0/1[ Phase 8- 13 F6.4 --- IV Intensity in V 15- 20 F6.4 --- IB Intensity in B
Origin: AAS CD-ROM series, Volume 6, 1996 Lee Brotzman [ADS] 07-May-1996
(End) [CDS] 06-Sep-1996
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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