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J/A+A/285/459          RZ Dra                                    (Kreiner+ 1994)
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Investigation of the semidetached eclipsing binary RZ Draconis
     Kreiner J.M., Pajdosz G., Tremko J., Zola S.
    <Astron. Astrophys. 285, 459 (1994)>
    =1994A&A...285..459K
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ADC_Keywords: Binaries, eclipsing; Photometry, UBV
Keywords: stars: binaries: eclipsing - stars: fundamental parameters -
          stars: individual: RZ Dra

Abstract:
    New B and V photoelectric observations gathered in the years 1989-1990 are
    presented. An analysis of the two-colour light curve using the 
    Wilson-Devinney code indicates that the system is semidetached. The 
    photometric mass ratio of the system RZ Dra is found to be q=0.45 and its 
    inclination i=87deg. The secondary, less massive and less luminous 
    component fills its critical Roche lobe, while the primary one is slightly 
    below. Using the spectroscopic value of the mass function and the 
    parameters resulting from the light curve synthesis, the following masses 
    and radii of components of RZ Dra are estimated: M_1_=1.40M_{sun}_, 
    M_2_=0.62M_{sun}_, R_1_=1.62R_{sun}_, R_2_=1.12R_{sun}_. Period changes of
    the system are also discussed. 

File Summary:
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 FileName    Lrecl    Records    Explanations
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ReadMe          80          .    This file
table1          30        542    Differential B photometry of RZ Dra
table2          30        540    Differential V photometry of RZ Dra
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Byte-by-byte Description of file: table1
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   Bytes Format  Units   Label    Explanations
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   2-  4  I3     ---     N        Number of observations
   8- 19  F12.4  d       HJD      Heliocentric Julian Date
  25- 30  F6.3   mag     dBmag    Differential B magnitude (variable-comparison)
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Byte-by-byte Description of file: table2
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   Bytes Format  Units   Label    Explanations
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   2-  4  I3     ---     N        Number of observations
   8- 19  F12.4  d       HDJ      Heliocentric Julian Date
  25- 30  F6.3   mag     dVmag    Differential V magnitude (variable-comparison)
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(End)                                           Patricia Bauer [CDS] 27-Jan-1994