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J/AJ/140/1150       GSC 3355-0394 BVRI differential photometry (Samec+, 2010)
Photometric study of the near critical contact system, GSC 3355 0394.
    Samec R.G., Melton R.A., Figg E.R., Labadorf C.M., Martin K.P.,
    Chamberlain H.A., Faulkner D.R., Van Hamme W.
   <Astron. J., 140, 1150-1157 (2010)>
   =2010AJ....140.1150S
ADC_Keywords: Binaries, eclipsing ; Photometry, UBVRI

Keywords: binaries: close - binaries: eclipsing - stars: evolution -
          stars: individual (GSC 3355 0394)

Abstract:
    GSC 3355 0394 has an EB-type light curve, which is dominated by hot
    and cool spot activities. It displays night-to-night variations in
    light-curve shapes. The period study yields six new times of minimum
    light and the first precision ephemeris,
    HJD TminI=2454408.9547±0.0017+0.4621603±.0000008d*E. VRcIc
    standard magnitudes are presented. BVRI Wilson synthetic light-curve
    solutions are calculated for both a Mode 4 (V1010 Oph-type,
    semidetached, more massive component filling its Roche lobe)
    configuration and a Mode 3, contact configuration (fill-out 100% or
    critical contact). The critical contact is the lowest residual
    solution. Four major spot regions are needed to model this binary, at
    least one is evidently a stream spot.

Description:
    Our CCD observations of GSC 3355 0394 (2MASS J04453561+5222353,
    NSVS 4304582 (ROTSE1), RA(2000)=04:45:35.613, DE(2000)=+52:22:35.43)
    were taken on 2007 December 27-28, at Lowell Observatory with the
    0.81m reflector with time allocated through the National Undergraduate
    Research Observatory (NURO) and on 2008 January 16 at Kitt Peak in
    remote mode.
Objects:
    --------------------------------------------------------
       RA   (2000)   DE       Designation(s)
    --------------------------------------------------------
    04 45 35.61  +52 22 35.4  GSC 03355-00394 = V* V963 Per
    --------------------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        20      732   Photometry of GSC 3535 0394


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

   Bytes Format Units   Label     Explanations

   1- 12  F12.4 d       HJD       Heliocentric Julian date (2454829-2454849)
      14  A1    ---     Band      [BVRI] Band
  16- 20  F5.3  mag     Dmag      Differential magnitude in Band


History:
    From electronic version of the journal
(End)                                      Patricia Vannier [CDS]    30-Jun-2012