\documentstyle[twoside]{article}

\input ibvs2.sty
\input ibvse.sty

\begin{document}
\IBVShead{5801}{11 October 2007}

\IBVStitle{Photoelectric Minima of Some Eclipsing Binary Stars}

\IBVSauth{Kili\c{c}o\u{g}lu, T.; Ba\c{s}t\"{u}rk, \"{O}.; \c{S}enavci, H. V.; Yilmaz, M.; Tanriverd{\.i}, T.; Alan, N.; S{\.i}pah{\.i}o\u{g}lu, S.; Aydin, G.; \c{C}el{\.i}k, L.; \c{C}ali\c{s}kan, \c{S}.; Elmasli, A.; G\"{o}kay, G.; \c{C}akan, D.; Dem{\.i}rcan, Y; Ekmek\c{c}{\.i}, F.; Selam, S. O.; Y\"{u}ce, K.; Albayrak, B.}

\IBVSinsto{Ankara University Observatory, 06837, Ahlatl{\i}bel, Ankara, TURKEY\\
e-mail: tolgahan@astro1.science.ankara.edu.tr}

\SIMBADobj{V417 Aql}
\SIMBADobj{AC Boo}
\SIMBADobj{TZ Boo}
\SIMBADobj{MR Cyg}
\SIMBADobj{V2150 Cyg}
\SIMBADobj{V836 Cyg}
\SIMBADobj{DN Del}
\SIMBADobj{AK Her}
\SIMBADobj{TX Her}
\SIMBADobj{V842 Her}
\SIMBADobj{SW Lac}
\SIMBADobj{AM Leo}
\SIMBADobj{XY Leo}
\SIMBADobj{V451 Oph}
\SIMBADobj{V566 Oph}
\SIMBADobj{DI Peg}
\SIMBADobj{V781 Tau}
\SIMBADobj{AH Vir}
\SIMBADobj{Z Vul}
\IBVStyp{ E }
\IBVSkey{Minima Times ; Binaries:eclipsing}
\IBVSabs{We present 51 minima times of 19 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{The minima times were calculated using Kwee \& van Woerden's (1956) method.}

\IBVSEmins{
V417 Aql & 54297.4312 & 0.0003 & II & $BV$ & Sb\c{s}-\c{C}l\c{s}\\
  & 54299.4671 & 0.0003 & I & $BV$ & Ul-Er\\
AC Boo & 54189.4124 & 0.0001 & I & $BV$ & Cv-Sy\\
TZ Boo & 54194.4432 & 0.0007 & I & $BV$ & \c{C}l-\c{C}v\\
  & 54228.3272 & 0.0004 & I & $BV$ & Ps-Kl\c{c}\\
  & 54235.4587 & 0.0010 & I & $BV$ & Gr-Blg\\
MR Cyg & 54343.3918 & 0.0006 & II & $BV$ & Gk-I\c{s}\\
V2150 Cyg & 54278.4673 & 0.0008 & I & $BV$ & Ul-Svm\\
  & 54286.4548 & 0.0007 & I & $BV$ & \c{C}t-\c{C}kn\\
  & 54310.4339 & 0.0007 & II & $BV$ & Ay-Alt\\
  & 54331.4269 & 0.0004 & I & $BV$ & Bn-Ay\\
  & 54344.4355 & 0.0016 & I & $BV$ & Cv-Erd\\
  & 54366.3528 & 0.0005 & I & $BV$ & Tr-Ay\\}

\IBVSEmins{
V836 Cyg & 54306.4192 & 0.0005 & I & $BV$ & Svm-Er\\
  & 54336.4772 & 0.0003 & I & $BV$ & B\c{s}-Sv\\
DM Del & 54289.3915 & 0.0004 & I & $BV$ & Dm-Dmr\\
  & 54316.4224 & 0.0004 & I & $BV$ & Sp-Kl\\
AK Her & 54245.3765 & 0.0003 & I & $BV$ & Ak-\c{S}n\\
  & 54274.4626 & 0.0003 & I & $BV$ & B\c{s}-El\\
  & 54296.3785 & 0.0005 & I & $BV$ & Bn-Ay\\
& 54300.3867 & 0.0004 & II & $BV$ & \c{C}\"{o}l-\c{S}n\\
  TX Her & 54302.4079 & 0.0004 & II & $BV$ & Cv-Kl\\
V842 Her & 54157.4921 & 0.0005 & I & $BV$ & \c{C}lk-Aln\\
  & 54207.3614 & 0.0010 & I & $BV$ & Kl\c{c}-Blg\\
  & 54212.3870 & 0.0004 & I & $BV$ & Trn-Dmr\\
  & 54292.4257 & 0.0005 & I & $BV$ & Svm-Ul\\
SW Lac & 54338.5017 & 0.0005 & I & $BV$ & Alt-Dm\\
  & 54346.3565 & 0.0002 & II & $BV$ & \c{S}nv-Tn\\
  & 54346.5184 & 0.0001 & I & $BV$ & Tn-Gr\\
  & 54351.4887 & 0.0002 & II & $BV$ & Sp-Erd\\
  & 54357.4225 & 0.0002 & I & $BV$ & \c{C}k-\"{U}r\\
  & 54363.3555 & 0.0002 & II & $BV$ & B\c{s}-\c{C}k\\
  & 54363.5163 & 0.0001 & I & $BV$ & Ylm-Tn\\
  & 54364.3168 & 0.0002 & II & $BV$ & \c{S}nv-B\u{g}\\
  & 54364.4785 & 0.0001 & I & $BV$ & Tn-B\u{g}\\
AM Leo & 54184.4644 & 0.0003 & II & $BV$ & Ylm-Trn\\
  & 54195.4391 & 0.0004 & II & $BV$ & \c{S}h-\c{C}t\\
  & 54226.3504 & 0.0004 & I & $BV$ & Alt-Bn\\
XY Leo & 54098.5661 & 0.0003 & II & $BV$ & Trn-Dv\\
  & 54198.4287 & 0.0003 & I & $BV$ & Alt-Dmr\\
V451 Oph & 54253.3641 & 0.0005 & I & $BV$ & Ul-Erd\\
  & 54265.4574 & 0.0006 & II & $BV$ & \c{C}kn-Bb\\
V566 Oph & 54279.3865 & 0.0003 & I & $BV$ & \c{C}t-\c{S}hn\\
  & 54290.4463 & 0.0004 & I & $BV$ & \c{C}l\c{s}-\c{C}lk\\
  & 54305.3994 & 0.0003 & II & $BV$ & Kl\c{c}-Gr\\
  & 54351.4659 & 0.0005 & I & $BV$ & Gr-Ylm\\
DI Peg & 54335.4878 & 0.0002 & I & $BV$ & \c{C}kn-\c{S}a\\
V781 Tau & 54166.3319 & 0.0004 & I & $BV$ & \c{C}l-Ays\\
AH Vir & 54285.3108 & 0.0005 & I & $BV$ & El-Ays\\
Z Vul & 54284.3550 & 0.0003 & I & $BV$ & \c{C}l-\c{C}kr\\
  & 54322.4097 & 0.0007 & II & $BV$ & I\c{s}-Sv\\
}

\IBVSEremexp{Observers: Ak: M. Akdamar, Aln: N. Alan, Alt: B. Altunta\c{s}, Ay: G. Ayd{\i}n, Ays: G. Aysan, Bb: B. Babao\u{g}lu, 
B\u{g}: N. Ba\u{g}{\i}ran, Blg: D. Bilgi\c{c}, Bn: A.K. Bing\"{o}l, B\c{s}: \"{O}. Ba\c{s}t\"{u}rk, Cv: E. Civelek, \c{C}k: A. \c{C}elik, 
\c{C}kn: D. \c{C}akan, \c{C}kr: T.D. \c{C}ak{\i}r, \c{C}l: T. \c{C}olak, \c{C}lk: L. \c{C}elik, \c{C}l\c{s}: \c{S}. \c{C}al{\i}\c{s}kan, 
 \c{C}\"{o}l: E. \c{C}\"{o}l, \c{C}t: Y. \c{C}etni, A.\"{O}. \c{C}avu\c{s}, Dm: E. Demirci, Dmr: U. Demirhan, Dv: O. Deveci, 
El: A. Elmasl{\i}, Er: G. Ergan, Erd: G. Erdo\u{g}an, Gk: G. G\"{o}kay, Gr: H. G\"{u}rsoytrak, I\c{s}: E. I\c{s}{\i}k, Kl: C. K{\i}l{\i}\c{c}, 
Kl\c{c}: T. K{\i}l{\i}\c{c}o\u{g}lu, Ps:  \c{C}. P\"{u}sk\"{u}ll\"{u}, Sb\c{s}: B. Suba\c{s}{\i}, Sp: S. Sipahio\u{g}lu, 
Sv: B. Savran, Svm: S. Sevim, Sy: S. Saydam, \c{S}a: \c{S}. \c{S}ahin, \c{S}h: Z.S. \c{S}ahin, \c{S}hn: E. \c{S}ahiner, 
\c{S}n: Y. \c{S}enda\u{g}, \c{S}nv: H. V. \c{S}enavc{\i}, Tn: T. Tanr{\i}verdi, Tr: Z. Terzio\u{g}lu, Trn: E. T\"{o}r\"{u}n, 
Ul: N.D. Ulu\c{s}, \"{U}r: Y. \"{U}re, Ylm: M. Y{\i}lmaz.}

\IBVSEack{We would like to thank all observers at the Ankara University Observatory.}

\references

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

Kwee, K.K., van Woerden, H., 1956, {\it BAN}, {\bf 12}, 327

\endreferences

\end{document}
