\documentstyle[twoside, epsf]{article}

\input ibvs2.sty
\input ibvse.sty

\begin{document}
\IBVShead{5360}{2 January 2003}

\IBVStitle{New Times of Minima of Eclipsing Binary Systems}

\IBVSauth{YAKUT, KADR\.I$^1$; ERKAN, NAC\.{I}$^1$; ULA\c{S}, BURAK$^1$; KESK\.IN, VAROL$^{1,2}$}

\IBVSinst{Ege University Observatory, Bornova, \.Izmir, P.O. Box 35100}
\IBVSinst{T\"UB\.ITAK National Observatory, Antalya \\
\indent e-mail: yakut,naci,bulash,keskinv@astronomy.sci.ege.edu.tr}

\SIMBADobj{RT And}
\SIMBADobj{AW UMa}
\SIMBADobj{V836 Cyg}
\IBVStyp{E}
\IBVSkey{Photoelectric photometry, Binaries: eclipsing}
\IBVSabs{We present several photoelectric minima observations of 3}
\IBVSabs{eclipsing binaries.}


\begintext

\IBVSEobs{48-cm Cassegrain telescope of the Ege University Observatory\\ 
40-cm Cassegrain telescope of the T\"UB\.ITAK National Observatory.}

\IBVSEdet{SSP-5A Hamamatsu, R4457 (PMT)}

\IBVSEred{Reduction made by ATMEX\footnotemark \\ 
({\tt http://astronomy.sci.ege.edu.tr/\~{}keskinv/Software.html}).}

\footnotetext{ATMEX is produced by Varol Keskin}

\IBVSEmethod{The minima times were computed with parabolic fitting and Kwee-van Woerden method (Kwee \& van Woerden, 1956)}

{\small
\IBVSEstars{
RT And 	& EB & 23\hr 11\mm 10\sec & +53\deg 01\arcm 33\arcs & BD+52$\deg$3383 & 51142.4937 & 0.62892979 & 1 \\
AW UMa 	& EW & 11\hr 30\mm 04\sec & +29\deg 57\arcm 53\arcs & BD+31$\deg$2270 & 38044.8150 & 0.43872910 & 2 \\
V836 Cyg& EB & 21\hr 21\mm 24\sec & +35\deg 44\arcm 11\arcs & BD+35$\deg$4461 & 47764.4462 & 0.653410818 & 3 \\
}
}
\IBVSEsource{
1. Pribulla et al., 1999a \\
2. Pribulla et al., 1999b \\
3. Zhukov \& Markova, 1993}


\IBVSEmin{
RT And & 51792.4927  & 8 &II & $B, V, R$ & $-0.0001$ & kY \\
& 51794.3793 & 8 & II & $B, V, R$ & $-0.0001$ & kY \\
& 51815.4472 & 2 & I & $B, V, R$ & $-0.0014$ & kY \\
& 51830.5434 & 3 & I & $B, V, R$ & $+0.0005$ & kY  \\
& 51863.2460 & 1 & I & $B, V, R$ & $-0.0012$ & kY\\
& 51884.3162 & 7 & II & $B, V, R$ & $-0.0002$ & kY \\
& 51912.3028 & 2 & I & $B, V, R$ & $-0.0010$ & kY \\
& 52120.4774 & 3 & I & $B, V$ & $-0.0021$ & kY \\
AW UMa & 51947.4571 & 7 &II & $B, V$ & $-0.0250$ & ErK+Bur \\
& 51949.4334 & 4 & I & $B, V$ & $-0.0230$ & ErK+Bur \\
& 51951.4075 & 6 & II & $B, V$ & $-0.0232$ & ErK+Bur \\
& 51977.5109 & 5 & I & $B, V$ & $-0.0242$ & ErK+Bur \\
& 52064.3780 & 7 & I & $B, V$ & $-0.0254$ & ErK+Bur\\
& 52313.5750 & 2 & I & $B, V$ & $-0.0265$ & ErK+Bur \\
& 52345.3822 & 2 & II & $B, V$ & $-0.0272$ & ErK+Bur\\
V836 Cyg & 52151.4617 & 8 &I & $B, V$ & $-0.0152$ &Bur+ErK \\
& 52153.4227 & 5 & I & $B, V$ & $-0.0160$ & Bur+ErK \\
& 52156.362 & 1 & I & $V$ & $-0.0152$ & Bur+ErK\\
& 52172.3715 & 4 & II & $B, V$ & $-0.0159$ & Bur+ErK\\
& 52499.4108 & 8 & II & $B, V$ & $+0.0231$ & Bur+ErK\\
& 52516.3983 & 5 & II & $B, V$ & $+0.0219$ & Bur+ErK\\
}


\IBVSEremexp{Observer(s)\\ kY: K. Yakut; ErK: N. Erkan; Bur: B. Ula\c s}

\IBVSEack{This work is supported by T\"UB\.ITAK and by Ege University Research Fund.}


\references

Kwee, K. K., \& van Woerden, H., 1956, {\it Bull.\ Astron.\ Inst.\ Neth.}, {\bf 12}, 327

Pribulla, T., Chochol, D., Parimucha, S., 1999a, {\it IBVS}, 4751

Pribulla, T., Chochol, D., Rovithis-Livaniou, H. \& Rovithis, P., 1999b, {\it A\&A}, {\bf 345}, 137

Zhukov, G. V. and Markova, L. T., 1993, {\it IBVS}, 392.

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