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 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