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


\begin{document}

\IBVShead{5649}{15 September 2005}

\IBVStitle{Photoelectric Minima of Some Eclipsing Binary Stars}

\IBVSauth{Albayrak, B.; Y\"{u}ce, K.; Selam, S. O.; Tanriverd{\.i}, T.; Okan, A.; \c{C}inar, D.; Topal, S.; \"{O}zg\"{u}r, E.; \c{S}ener, H. T.; Erg\"{u}n, {\.I}; C{\.i}velek, E.}

\IBVSinsto{Ankara University Observatory, 06837, Ahlatl{\i}bel, Ankara, T\"{U}RK{\.I}YE\\
e-mail: albayrak@astro1.science.ankara.edu.tr}

\SIMBADobj{BX And}
\SIMBADobj{V376 And}
\SIMBADobj{AH Aur}
\SIMBADobj{AP Aur}
\SIMBADobj{AR Aur}
\SIMBADobj{V410 Aur}
\SIMBADobj{CK Boo}
\SIMBADobj{TY Boo}
\SIMBADobj{TZ Boo}
\SIMBADobj{DK Cyg}
\SIMBADobj{GO Cyg}
\SIMBADobj{V477 Cyg}
\SIMBADobj{V836 Cyg}
\SIMBADobj{V2150 Cyg}
\SIMBADobj{BI CVn}
\SIMBADobj{BO CVn}
\SIMBADobj{LS Del}
\SIMBADobj{YY Eri}
\SIMBADobj{AK Her}
\SIMBADobj{HS Her}
\SIMBADobj{SW Lac}
\SIMBADobj{AM Leo}
\SIMBADobj{AP Leo}
\SIMBADobj{UV Leo}
\SIMBADobj{XZ Leo}
\SIMBADobj{SW Lyn}
\SIMBADobj{V502 Oph}
\SIMBADobj{V839 Oph}
\SIMBADobj{DI Peg}
\SIMBADobj{V357 Peg}
\SIMBADobj{CF Tau}
\SIMBADobj{V781 Tau}
\SIMBADobj{AH Vir}
\SIMBADobj{ER Vul}
\SIMBADobj{Z Vul}

\IBVStyp{   Binaries:eclipsing   }
\IBVSkey{Minima Times}
\IBVSabs{We present 70 minima times of 35 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).}


\IBVSEmins{
BX And	&	53323.3856	&	0.0004	&	I	&	UBV   & Ylk-Mh	\\
V376 And	&	53314.3346	&	0.0005	&	I	&	UBV	& Trh-Ul    \\
            &	53315.5360	&	0.0006	&	II	&	UBV	&  Tpr-\"{O}y    \\
AH Aur	&	53410.2834	&	0.0002	&	I	&	BV	&  \"{O}zg-Kh  \\
            &	53417.4468	&	0.0003	&	II	&	BV	&  Alp-Ul   \\
AP Aur  	&	53357.5220	&	0.0002	&	I	&	BV	& B\c{s}-Krc\\
AR Aur  	&	53301.4462	&	0.0003	&	II	&	BV	& Cv-Pk     \\
            &	53303.5133	&	0.0001	&	I	&	BV	& Km-Ak     \\
V410 Aur  	&	53345.5570	&	0.0003	&	II	&	BV	&  \c{C}n-Ev  \\
CK Boo  	&	53494.4546	&	0.0007	&	I	&	BV	& Kcz-\c{C}tn  \\
		&	53495.3439	&	0.0006	&	II	&	BV	&  Kl\c{c}-Yld\\
            &	53509.3735	&	0.0002	&	I	&	BV    &	\"{O}z-Kl\c{c} \\
TY Boo  	&	53464.4958	&	0.0006	&	II	&	BV    &	At-Ev   \\
            &	53501.4419	&	0.0003	&	I	&	BV    &	\c{C}rk-\c{C}tn\\
            &	53529.3498	&	0.0003	&	I	&	BV    &	\c{S}n-\c{S}h\\
TZ Boo  	&	53120.5147	&	0.0005	&	II	&	UBV   &	Elm-\c{C}n \\
            &	53128.3863	&	0.0005	&	I	&	BV    &	Alp-Krc  \\
            &	53128.5385	&	0.0006	&	II	&	BV    &	Alp-\c{C}rk\\
            &	53146.5148	&	0.0005	&	I	&	BV    &	Pk-Cv   \\
            &	53448.4305	&	0.0002	&	I	&	BV    &	Ylk-Kh\\
            &	53501.3236	&	0.0006	&	I	&	BV    &	\c{C}rk-\c{C}tn\\
DK Cyg	&	53605.3969	&	0.0014	&	I	&	BV    &	S\u{g}-\"{O}zy  \\
            &	53614.3416	&	0.0007	&	I	&	BV    &	Kl\c{c}-\"{O}z\\
}


\IBVSEmins{
GO Cyg	&	53198.4772	&	0.0003	&	II	&	UBV   &	Elm-\c{C}n\\
            &	53253.3879	&	0.0003	&	I	&	UBV   &	\"{O}zy-Mh  \\
            &	53271.3315	&	0.0003	&	I	&	UBV   &	\"{O}zy-Sk  \\
            &	53284.2532	&	0.0004	&	I	&	UBV   &	Alp-Krc\\
V477 Cyg	&	53598.3317	&	0.0030	&	I	&	BV    &	Er-S\u{g}\\
V836 Cyg	&	53277.2944	&	0.0003	&	I	&	BV    &	Ok-Tn\\
V2150 Cyg	&	53580.3590	&	0.0009	&	I	&	BV    &	U\u{g}-Bk\\
BI CVn	&	53451.3784	&	0.0013	&	I	&	UBV   &	Gr-D\u{g}n\\
BO CVn	&	53545.3509	&	0.0004	&	I	&	BV    &	Kb, Ky\\
LS Del	&	53302.2526	&	0.0005	&	I	&	UBV   &	Ky-Bng\\
            &	53303.3418	&	0.0007	&	I	&	UBV   &	\c{C}kr-Ul\\
            &	53304.2501	&	0.0006	&	II	&	UBV   &	D\u{g}n-S\u{g}\\
            &	53613.3409	&	0.0004	&	I	&	BV    &	Kcz-\c{S}h\\
YY Eri    	&	53310.4827	&	0.0002	&	I	&	UBV   &	 \c{C}n-\c{S}nr  \\
AK Her	&	53545.4387	&	0.0003	&	II	&	BV    &	Ky, Kb\\
HS Her	&	53601.3902	&	0.0006	&	I	&	BV    &	\"{O}z-Bk\\
SW Lac      &	53280.4472	&	0.0002	&	I	&	UBV   &	Tpr-Ok\\
            &	53290.3892	&	0.0002	&	I	&	UBV   &	Ylm-Yld\\
            &	53298.4072	&	0.0002	&	I	&	UBV   &	Ak-Kb\\
            &	53322.3002	&	0.0004	&	II	&	BV    &	Tn-Ok\\
AM Leo	&	53403.4847	&	0.0006	&	II	&	BV    &	Elm-Alp\\
            &	53411.5311	&	0.0001	&	II	&	UBV   &	Gr-\c{S}nr\\
            &	53442.2609	&	0.0002	&	II	&	UBV   &	Sp-Tn\\
            &	53442.4431	&	0.0004	&	I	&	UBV   &	Sp-Kb\\
AP Leo	&	53453.4048	&	0.0009	&	I	&	BV    &	\"{O}zy-Alt\\
UV Leo	&	53096.3212	&	0.0002	&	II	&	UBV   &	Tr-Ylk\\
            &	53102.3214	&	0.0003	&	II	&	UBV   &	Alp-Krc\\
            &	53120.3254	&	0.0003	&	II	&	BV    &	Er-Ky\\
            &	53382.5637	&	0.0001	&	II	&	UBV   &	\"{O}zg-Krc\\
            &	53383.4648	&	0.0003	&	I	&	UBV   &	Bng-\"{O}z\\
XZ Leo	&	53379.5708	&	0.0001	&	II	&	UBV   &	Er-Kb\\
SW Lyn	&	53375.5356	&	0.0001	&	I	&	UBV   &	Elm-Krc\\
V502 Oph	&	53500.5220	&	0.0009	&	I	&	BV    &	\c{S}h-Alt\\
            &	53524.3252	&	0.0004	&	II	&	BV    &	U\u{g}-Tp\\
V839 Oph	&	53512.5330	&	0.0003	&	II	&	BV    &	Tp-Ky\\
		&	53538.5006	&	0.0001	&	I	&	BV    &	B\c{s}-Mh	\\
DI Peg	&	53236.4400	&	0.0001	&	I	&	UBV   &	 \"{O}z-\c{S}nr  \\
V357 Peg	&	53607.4567	&	0.0003	&	I	&	UBV   &	Kl\c{c}-\"{O}z\\
CF Tau	&	52972.4836	&	0.0005	&	II	&	BV    &	Trh-Yld\\
            &	52979.3728	&	0.0007	&	I	&	BV    &	B\c{s}-Mh	\\
		&	53311.4615	&	0.0007	&	II	&	BV    &	Gr-\c{S}nr\\
V781 Tau    &	53380.2863	&	0.0003	&	I	&	BV    &	D\u{g}n-Alt\\
AH Vir	&	53487.3591	&	0.0002	&	I	&	BV    &	Er-Kb\\
ER Vul	&	53571.3715	&	0.0003	&	II	&	BV    &	B\c{s}-\c{C}kr\\
            &	53572.4200	&	0.0004	&	I	&	BV    &	Trh-Kl\c{c} \\
            &	53573.4642	&	0.0005	&	II	&	BV    &	Tp-Ky\\
Z Vul       &	53184.5456	&	0.0002	&	I	&	BV    &	\c{C}n-Ev\\
}


\IBVSEremexp{{\bf Observers:} Ak: O. Aksu, Alp: I. Alpay, Alt: S. Alt{\i}ntop, At: \"{O}. Atlagan, 
Bk: M. Bak{\i}rc{\i}, B\c{s}: \"{O}. Ba\c{s}t\"{u}rk, Bng: F. Bing\"{o}l, Cv: E. Civelek, \c{C}tn: E. \c{C}etin, 
\c{C}n: D. \c{C}{\i}nar, \c{C}rk: C. \c{C}{\i}rako\u{g}lu, \c{C}kr: D. \c{C}oker, D\u{g}n: G. Do\u{g}an, 
Elm: A. Elmasl{\i}, Er: \.I. Erg\"{u}n,  Ev: B. Evin, Gr: G. G\"{u}rkan, Kb: \"{O}. Kabaday{\i},
Kh: A. S. Kahraman, Ky: F. Kaya, Kl\c{c}: T. K{\i}l{\i}\c{c}o\u{g}lu, Krc: M. K{\i}rca, Kcz: S. Kocazeybek, 
Km: S. K\"{o}semen, 
Mh: B. Mahmuto\u{g}lu, Ok: A. Okan, \"{O}z: {\.I}. \"{O}zavc{\i}, 
\"{O}zg: E. \"{O}zg\"{u}r, \"{O}y: \"{O}. Y{\i}lmaz, \"{O}zy: D. \"{O}zuyar, 
Pk: E. Peker, S\u{g}: U. Sa\u{g}{\i}r, Sk: S. Sakall{\i}, Sp: S. Sipahio\u{g}lu, \c{S}h: C. R. \c{S}ahin, \c{S}n: H. V. \c{S}enavc{\i}, 
\c{S}nr: H.T. \c{S}ener, Tn: T. Tanr{\i}verdi, Tp: S. Topal, 
Tpr: S. Toprak\c{c}{\i}, Tr: E. T\"{o}r\"{u}n, Trh: B. Turhano\u{g}lu, U\u{g}: B. U\u{g}urluo\u{g}lu, 
Ul: C. Ulu\u{g}, Ylk: K. Yelkenci, Yld: Y. Y{\i}ld{\i}ran, Ylm: M. Y{\i}lmaz}

\IBVSEack{This work was supported by the research fund of the Ankara University with the project number: 2004-07-05-089. 
Also we would like to thank to all observers at Ankara University Observatory.}


\vspace*{-0.5cm}

\reference

Hardie, R. H., 1962, in {\it Astronomical Techniques}, Chicago. University Press, ed. Hiltner, W. A.

\endreferences

\end{document}

