J/AJ/139/1486 EE Aqr UBV light curves (Wronka+, 2010)
Orbital solutions and absolute elements of the eclipsing binary EE Aquarii.
Wronka M.D., Gold C., Sowell J.R., Williamon R.M.
<Astron. J., 139, 1486-1490 (2010)>
=2010AJ....139.1486W 2010AJ....139.1486W
ADC_Keywords: Binaries, eclipsing ; Photometry, UBV
Keywords: binaries: close - binaries: eclipsing - binaries: spectroscopic
Abstract:
EE Aqr is a 7.9mag Algol variable with a 12hr orbital period. The
Wilson-Devinney program is used to simultaneously solve 11 previously
published light curves together with two existing radial velocity
curves. The resulting masses are M1=2.24±0.13M☉ and
M2=0.72±0.04M☉, and the radii are R1=1.76±0.03R☉
and R2=1.10±0.02R☉. The system has the lower-mass component
completely filling its Roche lobe. Its distance from Hipparcos
observations is 112±10pc. An improved ephemeris is derived, and no
deviations in the period over time were seen. Light and velocity curve
parameters, orbital elements, and absolute dimensions are presented,
plus a comparison is made with previous solutions.
Description:
The Williamon (1974AJ.....79.1093W 1974AJ.....79.1093W) photometric measurements of EE Aqr
were obtained with the 76cm Cassegrain reflector at the Rosemary Hill
Observatory (near Gainesville, FL) during 1970 and 1971. More than 300
observations were made in each bandpass with UBV filters combined with
an unrefrigerated EMI 6256s photomultiplier. Compatibility with the
standard Johnson-Morgan UBV system was checked by nightly observations
of Arizona-Tonantzintla Catalog standard stars.
Objects:
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RA (2000) DE Designation(s)
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22 34 41.97 -19 51 35.3 EE Aqr = HD 213863
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 59 319 EE Aqr photometric observations from Williamon
(1974AJ.....79.1093W 1974AJ.....79.1093W)
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 12 F12.4 d HJD-V ? V band Heliocentric Julian Date
14- 19 F6.3 mag Vmag ? V band differential magnitude
21- 32 F12.4 d HJD-B ? B band Heliocentric Julian Date
34- 39 F6.3 mag Bmag ? B band differential magnitude
41- 52 F12.4 d HJD-U ? U band Heliocentric Julian Date
54- 59 F6.3 mag Umag ? U band differential magnitude
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 22-May-2012