\documentstyle[twoside]{article}

\input ibvs2.sty
\input ibvse.sty

\begin{document}

\IBVShead{5791}{28 August 2007}

\IBVStitletl{Minima Times of Some Eclipsing Binary Stars}


\IBVSauth{G\"urol, B.; Derman, E.; M\"uyessero\u{g}lu Z.; G\"urdem\.ir, L.; G\"okay, G.; \"Ozbek, N.; Sa\u{g}ir, U.; Kalci, R.; Salman, G.; \c{C}oker, D.; Em\.ino\u{g}lu, B.; Dem\.ircan, Y.; \break Terz\.io\u{g}lu, Z.}


\IBVSinsto{Ankara University, Faculty of Science, Astronomy and Space Sciences Department 06100, Tando\u{g}an, Ankara, T\"URK\.IYE; e-mail: gurol@science.ankara.edu.tr}


\IBVStyp{ E }
\IBVSkey{photometry}
\IBVSabs{We present 48 pe and 14 CCD times of minima of selected}
\IBVSabs{eclipsing binaries obtained from 1989 to 2007 at observatories}
\IBVSabs{in Turkey.}

\SIMBADobj{LO And}
\SIMBADobj{44 Boo}
\SIMBADobj{FG Hya}
\SIMBADobj{XX LMi}
\SIMBADobj{AU Ser}
\SIMBADobj{CU Sge}
\SIMBADobj{DI Peg}
\SIMBADobj{HD 65498}
\SIMBADobj{BD+42 2782}
\SIMBADobj{GSC 1174 0344}
\SIMBADobj{GSC 2751 1007}
\SIMBADobj{GSC 2765 0348}

\GCVSobj{XX LMi}

\begintext


\IBVSEobs{AUO1 and AUO2: 30-cm Maksutov telescope of the Ankara University Observatory.
TUG1: 40-cm Cassegrain-Schmidt telescope of the Turkish National Observatory.
TUG2: 40-cm Meade LX200-GPS telescope of the Tubitak National Observatory.}

\IBVSEdet{Before 29 September 1992 the observations made with EMI9789QB photomultiplier tube.
After that time we used OPTEC SSP-5A photometer containing a side-on R1414 Hamamatsu
photomultiplier for AUO1 and AUO2 respectively. Ap7p and ST8-E CCD cameras were used for TUG1 and TUG2 respectively.}


\IBVSEred{Reduction of the AUO observations were made in the usual way (Hardie
1962). We used the MaxIm DL software for the reduction of the TUG data. }

\IBVSEmethod{The minima times were computed by Kwee \& van Woerden (1956) method.}

\IBVStyp{  Binaries:eclipsing  }
\IBVSkey{Minima Times}


\IBVSEack{We are grateful to T\"{U}B\.{I}TAK National Observatory and Ankara University Observatory for use of the telescope time allocation and other facilities.}


\IBVSEmins{
LO And    & 53215.4797 & 0.0003  & I  & $BV$  & AUO2, BG  \\
44i Boo   & 47634.4403 & 0.0005  & I  & $UBV$ & AUO1, ZM  \\
	  & 47635.5157 & 0.0002  & I  & $UBV$ & AUO1, SOS   \\		
	  & 47635.3826 & 0.0002  & II & $UBV$ & AUO1, SOS  \\	
	  & 47640.4683 & 0.0004  & II & $UBV$ & AUO1, ZM  \\	
	  & 47691.3562 & 0.0008  & II & $UBV$ & AUO1, SOS  \\	
	  & 47692.4247 & 0.0004  & II & $BV$  & AUO1, FF\"O  \\	
	  & 47697.3767 & 0.0003  & I  & $UBV$ & AUO1, GK  \\	
	  & 47697.5125 & 0.0004  & II & $UBV$ & AUO1, GK  \\	
	  & 47960.3747 & 0.0001  & I  & $UBV$ & AUO1, BG  \\	
	  & 47960.5099 & 0.0005  & II & $UBV$ & AUO1, BG \\	
	  & 47962.5213 & 0.0008  & I  & $BV$  & AUO1, GK  \\	
	  & 47988.4949 & 0.0004  & I  & $BV$  & AUO1, SOS  \\	
	  & 48019.4285 & 0.0004  & II & $UBV$ & AUO1, ZM \\	
	  & 48049.4262 & 0.0006  & II & $UBV$ & AUO1, GK \\
	  & 48049.2943 & 0.0004  & I  & $UBV$ & AUO1, GK \\	
	  & 48050.3625 & 0.0002  & I  & $UBV$ & AUO1, SOS  \\	
	  & 48050.4949 & 0.0003  & II & $BV$  & AUO1, SOS  \\	
	  & 48051.4327 & 0.0003  & I  & $BV$  & AUO1, FF\"O  \\	
	  & 48430.3967 & 0.0007  & I  & $BV$  & AUO1, BA \\	
	  & 48431.3377 & 0.0002  & II & $BV$  & AUO1, BG \\	
	  & 48431.4695 & 0.0004  & I  & $BV$  & AUO1, BG \\	
	  & 48433.3444 & 0.0004  & I  & $BV$  & AUO1, AA \\	
	  & 48727.4089 & 0.0001  & I  & $UBV$ & AUO1, HD \\	
	  & 48727.5438 & 0.0002  & II & $UBV$ & AUO1, HD \\	
	  & 48730.4898 & 0.0003  & II & $UBV$ & AUO1, ZM \\	
	  & 48761.4220 & 0.0001  & I  & $UBV$ & AUO1, FE \\	
	  & 49109.5898 & 0.0001  & I  & $UBV$ & AUO2, ZM  \\	
	  & 49139.4487 & 0.0002  & II & $UBV$ & AUO2, SOS \\	
	  & 49139.3165 & 0.0001  & I  & $UBV$ & AUO2, SOS \\	
	  & 49142.3936 & 0.0001  & II & $UBV$ & AUO2, ZM \\	
	  & 49944.3826 & 0.0004  & I  & $BV$  & AUO2, SOS \\	
	  & 49945.3209 & 0.0001  & II & $BV$  & AUO2, BG \\	
	  & 50206.3100 & 0.0002  & I  & $BV$  & AUO2, BG \\	
	  & 50245.4112 & 0.0003  & I  & $UBV$ & AUO2, SOS \\
	  & 50246.4824 & 0.0002  & I  & $BV$  & AUO2, BG \\	
	  & 50248.4898 & 0.0002  & II & $BV$  & AUO2, ZM \\
          & 52031.5014 & 0.0001  & I  & $BV$  & AUO2, LG-UA \\
	  & 52052.5184 & 0.0001  & II & $BV$  & AUO2, LG-UA \\
	  & 52073.4135 & 0.0004  & II & $BV$  & AUO2, LG-UA \\
	  & 52108.3639 & 0.0001  & I  & $UBV$ & AUO2, LG-UA \\	
	  & 52318.4627 & 0.0001  & II & $BV$  & AUO2, LG-MK \\	
	  & 52500.3167 & 0.0003  & II & $BV$  & AUO2, MK-LG \\	
	  & 52745.5027 & 0.0001  & I  & $BV$  & AUO2, AT-MK  \\	
	  & 52759.5605 & 0.0001  & II & $UBV$ & AUO2, AT-TE\\	
}


\IBVSEmins{
FG Hya    & 53445.4428 & 0.0003  & II & $BVR$ & TUG1, GG-RK\\
XX LMi    & 53474.4515 & 0.0003  & I  & $BVR$ & TUG1, US-N\"O  \\
DI Peg    & 52843.5166 & 0.0002  & I  & $BV$  & AUO2, LG-TE  \\
CU Sge    & 53169.4984 & 0.0002  & II & $BV$  & AUO2, BG-ZM  \\
AU Ser    & 53215.3608 & 0.0002  & I  & $BV$  & AUO2, BG  \\
HD 65498  & 53446.4341 & 0.0002  & I  & $BVR$ & TUG1, YD-GG  \\
          & 53448.4039 & 0.0002  & II & $BVR$ & TUG1, YD-GG  \\
BD+42 2782    & 54215.5055 & 0.0000 & II & $BVR$ & TUG2, DC-BE  \\
              & 54216.4314 & 0.0001 & I  & $BR $ & TUG2, DC-BE  \\
GSC 1174-0344 & 54045.4107 & 0.0002 & I  & $BVR$ & TUG2, GG-GGl  \\
	      & 54046.3821 & 0.0002 & II & $BVR$ & TUG2, GG-GGl  \\
GSC 2765-0348 & 53302.3008 & 0.0003 & II & $BVR$ & TUG1, N\"O-GS  \\
              & 53302.4426 & 0.0002 & I  & $BVR$ & TUG1, N\"O-GS  \\
              & 53302.5844 & 0.0003 & II & $VR $ & TUG1, N\"O-GS  \\
GSC 2751-1007 & 53300.4014 & 0.0002 & I  & $BVR$ & TUG1, N\"O-GS  \\
	      & 53301.2365 & 0.0001 & I  & $BVR$ & TUG1, N\"O-GS  \\
	      & 53301.4443 & 0.0001 & II & $BVR$ & TUG1, N\"O-GS  \\
}


\IBVSEremexp{Remark gives observatory and the observers as BG: B. G\"urol, ZM: Z. M\"uyessero\u{g}lu, SOS: S.O. Selam, FF\"O: F.F. \"Ozeren, GK: G. Kahraman, BA: B. Albayrak, AA: A. Akal{\i}n, HD: H. D\"undar, FE: F. Ekmek\c{c}i, LG: L. G\"urdemir, MK: M. K{\i}rca, UA: U. Ak\c{c}ay, AT: A. Tun\c{c}, TE: T. Elmas, GG: G. G\"okay, GGl: G. G\"ulnaz, N\"O: N. \"Ozbek, RK: R. Kalc{\i}, US: U. Sa\u{g}{\i}r, YD: Y. Demircan, GS: G. Salman, D\c{C}: D. \c{C}oker, BE: B. Emino\u{g}lu. 
}

\IBVSErem{The times of minima are weighted averages from all filters observed.}



\references

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.


\endreferences

\end{document}




