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\input ibvs2.sty
\input ibvse.sty

\begin{document}

\IBVShead{5471}{27 October 2003}

\IBVStitletl{Photoelectric Minima of Some Eclipsing Binary Stars}

\IBVSauth{Selam, S. O.; Albayrak, B.; \c{S}enavci, H. V.; Tanriverd{\.i}, T.; Elmasli, A.; Kara, A.; Aksu, O.; Yilmaz, M.; Karaka\c{s}, T.; \c{C}inar, D.; Dem{\.i}rhan, M.; \c{S}ah{\.i}n, \c{S}.; \c{C}ev{\.i}ker, S.; G\"{o}zler, A. P.}

\IBVSinsto{Ankara University, Faculty of Science, Astronomy and Space Sciences Department,\\ 06100, Tando\u{g}an, Ankara, Turkey; e-mail: selim@astro1.science.ankara.edu.tr}

\SIMBADobj{V363 And}
\SIMBADobj{OO Aql}
\SIMBADobj{BI CVn}
\SIMBADobj{BO CVn}
\SIMBADobj{YY CrB}
\SIMBADobj{AK Her}
\SIMBADobj{SW Lac}
\SIMBADobj{AM Leo}
\SIMBADobj{U Peg}
\SIMBADobj{V351 Peg}
\SIMBADobj{V781 Tau}
\SIMBADobj{GR Vir}

\IBVStyp{ Binaries:eclipsing }
\IBVSkey{Minima Times}
\IBVSabs{We present 25 minima times of 12 eclipsing binaries.}

\begintext

\IBVSEobs{30-cm Maksutov telescope of the Ankara University Observatory}

\IBVSEdet{OPTEC SSP-5A photoelectric photometer (uncooled) containing a side-on R1414 Hamamatsu photomultiplier.}

\IBVSEred{Reduction of the observations were made in the usual way (Hardie, 1962).}

\IBVSEmethod{Times of minima were determined by the method of Kwee and van Woerden (1956).}

{\small
\IBVSEstars{
V363 And & EB     & 01 31 46 & $+$36 05 38 & BD$+$34$^\circ$ 0273  & 48500.3980 & 1.27799    & 1 \\
OO Aql   & EW/DW: & 19 18 32 & $+$09 18 32 & BD$+$08$^\circ$ 4220  & 49193.4418 & 0.5067888  & 2 \\
BI CVn   & EW/KW  & 13 03 16 & $+$36 37 01 & BD$+$03$^\circ$ 2352  & 45769.538  & 0.3842059  & 3 \\
BO CVn   & EW     & 13 59 08 & $+$40 49 09 & BD$+$41$^\circ$ 2450  & 46895.4483 & 0.51746168 & 4 \\
YY CrB   & EW     & 15 50 32 & $+$37 50 08 & BD$+$38$^\circ$ 2701  & 50000.1496 & 0.37656416 & 5 \\
AK Her   & EW/KW  & 17 13 58 & $+$16 21 01 & BD$+$16$^\circ$ 3123  & 38176.5092 & 0.42152368 & 6 \\
SW Lac   & EW/KW  & 22 53 42 & $+$37 56 19 & BD$+$37$^\circ$ 4715  & 52505.5960 & 0.32071417 & 7 \\
AM Leo   & EW/KW  & 11 02 11 & $+$09 53 43 & BD$+$10$^\circ$ 2235  & 39936.8303 & 0.3657972  & 8 \\
U Peg    & EW/KW  & 23 57 58 & $+$15 57 10 & BD$+$15$^\circ$ 4916  & 36511.6663 & 0.3747809  & 9 \\
V351 Peg & EW/KW  & 23 25 25 & $+$15 41 19 & BD$+$15$^\circ$ 4830  & 48500.493  & 0.593297   & 10 \\
V781 Tau & EW/KW  & 05 50 13 & $+$26 57 43 & BD$+$27$^\circ$ 0886  & 52554.9210 & 0.344908   & 11 \\
GR Vir   & EW/KW  & 14 45 20 & $-$06 44 04 & BD$-$06$^\circ$ 4066  & 45665.6415 & 0.3469788  & 12 \\
}
}

\IBVSEsource{
1.: ESA (1997);
2.: Demircan \& G\"urol (1996);
3.: Vandenbroere (1998);
4.: Albayrak et al. (2001);
5.: Pribulla \& Vanko (2002); 
6.: Bookmyer \& Kaitchuck (1979);
7.: Pribulla et al. (2002);
8.: Demircan \& Derman (1992);
9.: Maupome et al. (1991);
10.: Gomez-Forrellad et al. (1999);
11.: Nelson (2003);
12.: Cereda et al. (1988)
}

\clearpage

\vspace*{-1cm}
{\normalsize
\IBVSEmin{
V363 And	&	52855.2955	&	0.0002	&	II	&	$BV$	&	$+$0.1466	&	Tn-Ak	\\
OO Aql	&	52497.4739	&	0.0002	&	II	&	$UBV$	&	$+$0.0225	&	El-\c{C}n	\\
 		&	52574.2521	&	0.0006	&	I	&	$UBV$	&	$+$0.0222	&	\c{S}n-Kr	\\
 		&	52575.2659	&	0.0002	&	I	&	$UBV$	&	$+$0.0224	&	El-Ak	\\
 		&	52498.4877	&	0.0001	&	II	&	$UBV$	&	$+$0.0227	&	Tn-\c{C}n	\\
BI CVn	&	52762.4909	&	0.0003	&	I	&	$BV$	&	$+$0.0213	&	Tn-Kr	\\
BO CVn	&	52757.5142	&	0.0002	&	II	&	$BV$	&	$+$0.0013	&	Kt-\c{C}n	\\
 		&	52813.3986	&	0.0052	&	II	&	$BV$	&	$-$0.0002	&	Kt-Kr	\\
YY CrB	&	52814.4004	&	0.0001	&	II	&	$UBV$	&	$-$0.0015	&	Tn-Ak	\\
AK Her	&	52806.5086	&	0.0004	&	II	&	$BV$	&	$+$0.0346	&	\c{S}n-Krk	\\
SW Lac	&	52863.5142	&	0.0004	&	I	&	$UBV$	&	$+$0.0012	&	\c{S}n-\c{C}v	\\
		&	52909.5377	&	0.0002	&	II	&	$BV$	&	$+$0.0022	&	\c{S}n-\c{C}v	\\
		&	52912.2629	&	0.0002	&	I	&	$BV$	&	$+$0.0013	&	Tn-Dm	\\
		&	52912.4243	&	0.0004	&	II	&	$BV$	&	$+$0.0024	&	Tn-Dm	\\
AM Leo	&	52727.4902	&	0.0003	&	II	&	$BV$	&	$+$0.0121	&	El-\c{S}h	\\
 		&	52728.4046	&	0.0006	&	I	&	$BV$	&	$+$0.0120	&	Tn-Yl	\\
 		&	52729.3188	&	0.0004	&	II	&	$BV$	&	$+$0.0117	&	El-\c{S}h	\\
 		&	52729.5008	&	0.0002	&	I	&	$BV$	&	$+$0.0108	&	El-Dm	\\
U Peg		&	52917.4434	&	0.0003	&	II	&	$UBV$	&	$-$0.0694	&	Tn-Krk	\\
V351 Peg	&	52924.4121	&	0.0002	&	II	&	$UBV$	&	$+$0.0000	&	\c{S}n-Gz	\\
V781 Tau	&	52924.4952	&	0.0001	&	II	&	$UBV$	&	$+$0.0053	&	\c{S}n-Krk	\\
GR Vir	&	52769.3237	&	0.0004	&	I	&	$BV$	&	$-$0.0148	&	El-Gz	\\
		&	52769.4964	&	0.0004	&	II	&	$BV$	&	$-$0.0156	&	El-Gz	\\
		&	52797.4277	&	0.0005	&	I	&	$UBV$	&	$-$0.0161	&	\c{S}n-Yl	\\
		&	52805.4052	&	0.0008	&	I	&	$UBV$	&	$-$0.0191	&	\c{S}n-Yl	\\
}
\vspace*{-0.3cm}
\IBVSEremexp{{\bf Observers:} Ak: O. Aksu, \c{C}v: S. \c{C}eviker, \c{C}n: D. \c{C}{\i}nar, Dm: M. Demirhan, El: A. Elmasl{\i}, 
Gz: A.P. G\"{o}zler, Kr: A. Kara, Krk: T. Karaka\c{s}, Kt: E. Kutdemir, \\ \c{S}n: H. V. \c{S}enavc{\i}, \c{S}h: \c{S}. \c{S}ahin,
Tn: T. Tanr{\i}verdi, Yl: M. Y{\i}lmaz}
\vspace*{-0.3cm}
\IBVSEack{This work was supported by the Turkish Academy of Sciences in
the framework of the Young Scientist Award Program (BA/T\"{U}BA-GEB{\.I}P/2001-2-2)}
}
\vspace*{-0.5cm}
\references

Albayrak, B., M\"uyessero\u{g}lu, Z., \"{O}zdemir, S., 2001, {\it AN}, {\bf 322}, 125

Bookmyer, B. B., Kaitchuck, R. H., 1979, {\it PASP}, {\bf 91}, 234

Cereda, L., Misto, A., Niarchos, P. G., Poretti, E., 1988, {\it A\&AS}, {\bf 76}, 255

Demircan, O., Derman, E., 1992, {\it AJ}, {\bf 103}, 593

Demircan, O., G\"urol, B., 1996, {\it A\&AS}, {\bf 115}, 333

ESA, 1997, {\it The Hipparcos $\&$ Tycho Catalogues}, SP-1200

Gomez-Forrellad, J. M., Garcia-Melendo, E., Guarro-Flo, J., Nomen-Torres, J., Vidal-Sainz, J., 1999, {\it IBVS}, No.4702
 
Hardie, R., 1962, {\it Astr.\ Tech.: Stars and Stellar Systems}, Vol.\ II, Univ.\ of Chicago Press, Chicago

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

Maupome, L., Rodriguez, E., Hobart, M. A., Pena, J. H., Peniche, R., 1991, {\it RMxAA}, {\bf 22}, 235

Nelson, R. H., 2003, {\it IBVS}, No. 5371

Pribulla, T., Vanko, M., 2002, {\it CoSka}, {\bf 32}, 79

Pribulla, T., Vanko, M., Parimucha, S., Chochol, D., 2002, {\it IBVS}, No.5341

Vandenbroere, J., 1998, {\it IBVS}, No. 4554

\endreferences
\end{document}

