J/AJ/119/1389 Properties of the binary star FS Monocerotis (Lacy+, 2000)
Absolute properties of the eclipsing binary star FS Monocerotis
Lacy C.H.S., Torres G., Claret A., Stefanik R.P., Latham D.W., Sabby J.A.
<Astron. J. 119, 1389 (2000)>
=2000AJ....119.1389L 2000AJ....119.1389L
ADC_Keywords: Binaries, eclipsing ; Photometry
Keywords: binaries: eclipsing - binaries: spectroscopic - stars:
evolution - stars: fundamental parameters - stars:
individual (FS Monocerotis)
Abstract:
We present photometric observations in B and V as well as
spectroscopic observations of the 1.9 day-period, double-lined
main-sequence eclipsing binary FS Mon. From the analysis of the light
curves and radial velocity curves, we have determined the masses and
radii of the components: 1.631±0.012 Msun and 2.051±0.012 Rsun
for the primary component; 1.461±0.010 Msun and 1.629±0.012
Rsun for the secondary component. The formal uncertainties are all
less than 1%. Based on our light curves as well as on the
combined-light photometry of the system, we estimate effective
temperatures of 6715±100 K for the primary and 6550±100 K for the
secondary component, corresponding to spectral types of F2 and F4,
respectively. Projected rotational velocities (v sin i) from the
spectrograms are measured as 52±2 km.s-1 and 43±3 km.s-1,
respectively, from the spectrograms and are consistent with rotation
that is synchronous with the orbital motion.
Objects:
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RA (2000) DE Designation(s)
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07 24 42.3 -05 09 15 FS Mon = BD -04 1937
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table6.dat 24 249 Differential photometry of FS Mon in B
table7.dat 24 249 Differential photometry of FS Mon in V
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 13 F13.5 d JD Julian date
20- 24 F5.3 mag DeltaB Change in the B band magnitude
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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1- 13 F13.5 d JD Julian date
20- 24 F5.3 mag DeltaV Change in the V band magnitude
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History:
From AJ electronic edition
(End) Greg Schwarz [AAS] 17-Apr-2000