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J/ApJ/640/1018       Differential photometry of V1061 Cyg      (Torres+, 2006)
The eclipsing binary V1061 Cygni: confronting stellar evolution models for
active and inactive solar-type stars.
    Torres G., Lacy C.H., Marschall L.A., Sheets H.A., Mader J.A.
   <Astrophys. J., 640, 1018-1038 (2006)>
   =2006ApJ...640.1018T
ADC_Keywords: Binaries, spectroscopic ; Photometry, UBVRI

Keywords: binaries: close - binaries: spectroscopic - stars: evolution -
          stars: individual (V1061 Cyg) - techniques: spectroscopic

Abstract:
    We present spectroscopic and photometric observations of the eclipsing
    system V1061 Cyg (P=2.35days). A third star is visible in the
    spectrum, and the system is a hierarchical triple.

Description:
    V1061 Cyg was observed at the CfA with an echelle spectrograph 
    on the 1.5m Wyeth reflector at the Oak Ridge Observatory (eastern
    Massachusetts) and occasionally also with a nearly identical
    instrument on the 1.5m Tillinghast reflector at the F. L. Whipple
    Observatory (Arizona). Relative photometric observations of V1061 Cyg
    were obtained at two different facilities. Measurements in the V band
    were made with the 0.26m URSA robotic telescope at Kimpel Observatory
    on the campus of the University of Arkansas at Fayetteville. A total
    of 6914 observations were collected between 2001 March and 2004
    October. Observations were also made with the 0.4m f/11 Ealing
    Cassegrain reflector at Gettysburg College Observatory, in Gettysburg
    (Pennsylvania), between 2002 September and 2003 September.
Objects:
    ---------------------------------------------------
       RA   (2000)   DE      Designation(s)
    ---------------------------------------------------
    21 07 20.5   +52 02 58   V1061 Cygni = V* V1061 Cyg
    ---------------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        85       75   Radial Velocity Measurements for V1061 Cyg
table3.dat        20     6914   Differential V-band photometry for V1061 Cyg
                              from the URSA telescope
table4.dat        20      732   Differential B-band photometry for V1061 Cyg
                              from the URSA telescope
table5.dat        20      738   Differential V-band photometry for V1061 Cyg
                              from Gettysburg
table6.dat        20      739   Differential R-band photometry for V1061 Cyg
                              from Gettysburg
table7.dat        20      740   Differential I-band photometry for V1061 Cyg
                              from Gettysburg


See also:
  J/PAZh/26/525 : UBVRI photometry of V1016 Ori (Bondar+, 2000)
  J/PAZh/26/695 : IR photometry of V1016 Cyg and HM Sge (Taranova+, 2000)
  J/AJ/127/1727 : Differential magnitudes of binary stars (Horch+, 2004)


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

   Bytes Format Units   Label     Explanations

   1- 12  F12.4 d       HJD       Heliocentric Julian Date of observation
  14- 22  F9.4  yr      Year      Year of observation
  24- 30  F7.2  km/s    RVAa      Radial velocity of V1061 Cyg Aa
  32- 38  F7.2  km/s    RVAb      Radial velocity of V1061 Cyg Ab
  40- 44  F5.2  km/s    RVB       Radial velocity of V1061 Cyg B
  46- 50  F5.2  km/s    (O-C)Aa   Radial velocity residual of V1061 Cyg Aa
  52- 57  F6.2  km/s    (O-C)Ab   Radial velocity residual of V1061 Cyg Ab
  59- 63  F5.2  km/s    (O-C)B    Radial velocity residual of V1061 Cyg B
  65- 70  F6.4  ---     IPhase    Inner phase (1)
  72- 77  F6.4  ---     OPhase    Outer phase (1)
  79- 85  F7.4  d       DelT      Light travel time correction

Note (1): Computed from the ephemeris in the last column of Table 10.



Byte-by-byte Description of file: table?.dat

   Bytes Format Units Label   Explanations

   1- 13  F13.5 d     HJD     Heliocentric Julian Date of observation
  15- 20  F6.3  mag   Delmag  Differential magnitude


History:
    From electronic version of the journal
(End)                   Greg Schwarz [AAS], Marianne Brouty [CDS]    26-Jul-2007