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J/AJ/137/226        Differential light curves of TV Tri            (Yang+, 2009)
Evolutionary status of RV Trianguli and its related Algol-type binaries.
    Yang Y.-G., Wei J.-Y.
   <Astron. J., 137, 226-235 (2009)>
   =2009AJ....137..226Y
ADC_Keywords: Binaries, eclipsing ; Photometry, UBV ; Photometry, CCD

Keywords: binaries: close - binaries: eclipsing -
          stars: individual (RV Trianguli)

Abstract:
    We present CCD photometry for the Algol-type binary RV Trianguli
    observed during three nights in 2007 November. The photometric
    solution was derived from our VR observations by using the
    Wilson-Devinny program. The results indicated that RV Tri is a
    semidetached binary with a mass ratio of q=0.306±0.005. Based
    on 236 light minimum times, the orbital period change of RV Tri was
    analyzed in detail.

Description:
    CCD observations of RV Tri were carried out in 2007 November 28-30,
    using the 85 cm telescope at the Xinglong Station of National
    Astronomical Observatories of the Chinese Academy of Sciences.
Objects:
    --------------------------------------------
       RA   (2000)   DE      Designation(s)
    --------------------------------------------
    02 13 18.2   +37 01 02   RV Tri = V* RV Tri
    --------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        21     2087   CCD photometric observations in V- and R- band
                              of the eclipsing binary RV Tri
table3.dat        55      236   Available light minimum times of the Algol-type
                              binary RV Trianguli
refs.dat          93       80   References


Byte-by-byte Description of file: table1.dat

   Bytes Format Units   Label     Explanations

       1  A1    ---     Filt      [VR] Filter used
   3- 14  F12.4 d       HJD       Heliocentric Julian Date
  16- 21  F6.3  mag     Dmag      Differential magnitude in Filt


Byte-by-byte Description of file: table3.dat

   Bytes Format Units Label   Explanations

   1- 12  F12.4 d     HJD     Heliocentric Julian date
  14- 21  F8.1  ---   Epoch   Epoch
  23- 25  A3    ---   Type    Observation type (1)
  27- 28  A2    ---   Min     Minimum type (I or II)
  30- 36  F7.4  ---   (O-C)   Computed O-C residual
  38- 44  F7.4  ---   (O-C)1  Computed O-C residual of quadratic term
  46- 52  F7.4  ---   (O-C)2  Computed O-C residual of 22 CCD minimum timings
  54- 55  I2    ---   Ref     Reference, in refs.dat file

Note (1): Observation type as follows:
    pg = photographic measurements
    vi = visual observation
   CCD = charge-coupled device


Byte-by-byte Description of file: refs.dat

   Bytes Format Units   Label     Explanations

   1-  2  I2    ---     Ref       Reference code
   4- 22  A19   ---     BibCode   BibCode
  24- 43  A20   ---     Aut       Author's name
  45- 93  A49   ---     Com       Comments


History:
    From electronic version of the journal

References:
     Yang et al.   Paper II  2010AJ....139.1360Y    Cat. J/AJ/139/1360
     Yang et al.   Paper III 2012AJ....143...13Y    Cat. J/AJ/143/13
     Yang et al.   Paper IV  2012AJ....144...50Y
     Yang et al.   Paper V   2012AJ....144..136Y
(End)                  Greg Schwarz [AAS], Patricia Vannier [CDS]    03-Sep-2011