\documentstyle[twoside, ibvs2, epsf]{article}

\input ibvst.sty
\input ibvse.sty
\input epsf.sty

\begin{document}

\IBVShead{5269}{1 May 2002}

\IBVStitletl{CCD LIGHT CURVES OF ROTSE1 VARIABLES, XIV: GSC\,1996:437 C\lowercase{om},}{ GSC\,2004:784 CV\lowercase{n}, GSC\,2001:300 B\lowercase{oo} AND GSC\,3026:1046 CV\lowercase{n}}

\IBVSauth{Bl\"attler, E.$^1$; Diethelm, R.$^2$}
   
\IBVSinst{BBSAG, Sch\"usselacher 1, CH-8636 Wald, Switzerland; e-mail: blaettler-wald@bluewin.ch}

\IBVSinst{BBSAG, Rennweg 1, CH-4118 Rodersdorf, Switzerland; e-mail: diethelm@astro.unibas.ch}

\SIMBADobj{ROTSE1 J131424.16+271131.6}
\SIMBADobj{ROTSE1 J133638.49+281139.0}
\SIMBADobj{ROTSE1 J133659.37+265247.6}
\SIMBADobj{ROTSE1 J133726.05+373458.4}


\begintext

\IBVSEobs{Private observatory Sch\"usselacher, Wald, 0.15-m Starfire refractor}

\IBVSEdet{SBIG ST-7 CCD camera}

\IBVSEred{Standard CCD-frame reduction using AIP4WIN software}

\IBVSEmethod{Kwee -- van Woerden algorithm}

{\small
\IBVSEstarlis{GSC\,1996:437 &&&& \\
ROTSE1 J131424.16+271131.6 & EW & 13 14 24.2 & +27 11 32 & GSC\,1996:1314 / 
GSC\,1996:1114  \\
 GSC\,2004:784 &&&& \\
ROTSE1 J133638.49+281139.0 & EW & 13 36 38.5 & +28 11 39 & GSC\,2004:424 / GSC\,2004:1406  \\
 GSC\,2001:300 &&&& \\
ROTSE1 J133659.37+265247.6 & EW & 13 36 59.4 & +26 52 48 & GSC\,2001:193 / 
GSC\,2001:285  \\
 GSC\,3026:1046 &&&& \\
ROTSE1 J133726.05+373458.4 & EW & 13 37 26.0 & +37 34 58 & GSC\,3026:979 / GSC\,3026:922  
\\
}  
}  


\IBVSEephem{ GSC\,1996:437 & 52308.4688 & 0.412749 & present paper \\
GSC\,2004:784 & 52308.4873 & 0.2720494 & " \\
GSC\,2001:300 & 52308.4567 & 0.367879 & " \\
GSC\,3026:1046 & 52296.6908 & 0.349271 & " \\
}

{\small
\IBVSEmin{
GSC1996:437 (Com) & 51274.7388 & 15  & s & none && ROTSE1 \\
                        & 51306.7291 & 8 & p& none && ROTSE1 \\
                        & 52285.5617 & 9 & s & none && Bl\"attler, 2002\\
                        & 52287.6248 & 10 & s & none && Bl\"attler, 2002\\
                        & 52296.4972 & 11 & p & none && Bl\"attler, 2002\\
                        & 52296.7039 & 34 & s & none && Bl\"attler, 2002\\
                        & 52308.4679 & 7 & p & none && Bl\"attler, 2002\\
                        & 52308.6766 & 11 & s & none && Bl\"attler, 2002\\
                        & 52344.3776 & 10 & p & none && Bl\"attler, 2002\\
                        & 52344.5872 & 7 & s & none && Bl\"attler, 2002\\
GSC2004:784 (CVn) & 51281.6391 & 7 & s & none && ROTSE1 \\
		& 51310.8800 & 9 & p & none && ROTSE1 \\
                        & 52285.4971 & 52 & s & none && Bl\"attler, 2002\\
                        & 52285.6350 & 8 & s & none && Bl\"attler, 2002\\
                        & 52287.5393 & 14 & p & none && Bl\"attler, 2002\\
                        & 52296.5184 & 11 & p & none && Bl\"attler, 2002\\
                        & 52296.6545 & 13 & s & none && Bl\"attler, 2002\\
                        & 52308.4858 & 10 & p & none && Bl\"attler, 2002\\
                        & 52308.6253 & 9 & s & none && Bl\"attler, 2002\\
                        & 52344.3989 & 12 & p & none && Bl\"attler, 2002\\
                        & 52344.5340 & 4 & s & none && Bl\"attler, 2002\\
                        & 52347.3888 & 17 & p & none && Bl\"attler, 2002\\
GSC2001:300 (Boo) & 51288.8770 & 8 & s & none && ROTSE1 \\
                        & 51304.8864 & 13 & p & none && ROTSE1 \\
                        & 52285.6431 & 12 & p & none && Bl\"attler, 2002\\
		& 52287.4875 & 19 & p & none && Bl\"attler, 2002\\
		& 52296.4993 & 16 & s & none && Bl\"attler, 2002\\
                        & 52296.6830 & 8 & p & none && Bl\"attler, 2002\\
                        & 52308.4565 & 21 & p & none && Bl\"attler, 2002\\
                        & 52308.6451 & 9 & s & none && Bl\"attler, 2002\\
                        & 52344.3277 & 15 & s & none && Bl\"attler, 2002\\
                        & 52344.5103 & 9 & p & none && Bl\"attler, 2002\\
                        & 52347.4509 & 33 & p & none && Bl\"attler, 2002\\
GSC3026:1046 (CVn) & 51259.7031 & 6 & p & none && ROTSE1 \\
                        & 51310.8766 & 18 & s & none && ROTSE1 \\
                        & 52285.5102 & 12 & p & none && Bl\"attler, 2002\\
                        & 52285.6886 & 4 & s & none && Bl\"attler, 2002\\
                        & 52287.6107 & 6 & p & none && Bl\"attler, 2002\\
                        & 52296.5182 & 11 & s & none && Bl\"attler, 2002\\
                        & 52296.6901 & 8 & p & none && Bl\"attler, 2002\\
                        & 52308.5659 & 5 & p & none && Bl\"attler, 2002\\
                        & 52308.7351 & 21 & s & none && Bl\"attler, 2002\\
                        & 52344.3681 & 7 & s & none && Bl\"attler, 2002\\
                        & 52344.5409 & 6 & p & none && Bl\"attler, 2002\\
                        & 52347.3352 & 3 & p & none && Bl\"attler, 2002\\
}
}

\IBVSEremexp{ROTSE1: Observations of Akerlof et al. (2000).}


\newpage

\IBVS2fig{7.5cm}{5269-f1.eps}{CCD light curve (without filter) of GSC\,1996:437}{5269-f2.eps}{CCD light curve (without filter) of GSC\,2004:784}

\IBVS2fig{7.5cm}{5269-f3.eps}{CCD light curve (without filter) of GSC\,2001:300}{5269-f4.eps}{CCD light curve (without filter) of GSC\,3026:1046}

\IBVSErem{
As a byproduct of the ROTSE1 CCD survey, a large number of new
variables have been discovered (Akerlof et al., 2000). In a series of papers, 
we report unfiltered CCD observations for some of the close binary systems 
(type EW) in the list of Akerlof et al. (2000). This installment 
contains information on four variables in the constellations Com, Boo and CVn. The four stars were observed with our CCD equipment during 6 nights between JD\,2452285 and JD\,2452347. A total of 184 CCD frames were measured of GSC\,1996:437, 179 frames of 
GSC\,2004:784, 183 frames of GSC\,2001:300 and 190 
frames for GSC\,3026:1046. Figures 1 through 4 show our 
observations folded with the elements given in the table of Ephemeris.  
These elements of variation are deduced from a linear fit to the normal 
minima from the ROTSE1 data and the timings of minimum derived from our data 
given in the table of Times of minima.}


\newpage
 
\IBVSEdata{Upon request from diethelm@astro.unibas.ch} %email


\IBVSEack{This research  made use of the SIMBAD data base, operated at CDS,
Strasbourg, France}        


\references

Akerlof, C., Amrose, S., Balsano, R., Bloch, J., Casperson, D., 
Fletcher, S., Gisler, G., Hills, J., Kehoe, R., Lee, B., Marshall, S., 
McKay, T., Pawl, A., Schaefer, J., Szymanski, J., Wren, J., 2000, {\it AJ}, {\bf 119}, 1901

Bl\"attler, E., 2002, {\it BBSAG Bulletin}, {\bf 127}


\end{document}

