\begin{table}%ta.1 %\centering \par \caption{\label{jourv}Journal of available RV observations of $\zeta$ Tau.} \small \begin{tabular}{ccrrll} \hline\hline Spg.&Time interval& No. of& No. of &\ \ \ \ \ \ \ \ Telescope/&Source\\ No. &(HJD$-$2400000) &\ion{H}{i} RVs&\ion{He}{i} RVs&\ \ \ \ \ \ \ \ Instrument& \\ \hline 1&15793.7--16929.6& 24& 0&Yerkes 1.02-m, Bruce prism spg.&\citet{adams05}\\ 2&20408.8--24968.6&160& 80&Ann Arbor 0.95-m prism spg.&\citet{losh32}\\ 8&26016.7--28450.0& 5& 1&MtWilson, prism spg.&\citet{underhil52}\\ 1&28798.0--30339.8& 47& 47&Yerkes 1.02-m, Bruce prism spg.&\citet{hynekistruve42}\\ 4&28882.0--34056.7& 22& 13&MtWilson, grating spg.&\citet{underhil52}\\ 5&28962.7--34093.6& 63& 18&DAO 1.83-m, prism spg.&\citet{underhil51,underhil52}\\ 3&29893.9--30302.8& 52& 48&Perkins 1.75-m, grating spg.&\citet{hynekistruve42}\\ 9&33280.4--33772.3& 48& 44&Heidelberg 0.72-m, prism spg.&\citet{miczaika53}\\ 3&33937.7--36188.8& 3& 0&Perkins 1.75-m, grating spg.&\citet{herduv63}\\ 10&36177.5--36598.5& 7& 0&Merate 1-m, prism spg.&\citet{gokgoz62}\\ 6& 36918.0 & 1& 0&OHP 1.93-m, grating spg.&\citet{herduv63}\\ 6&37205.6--37293.4& 2& 0&OHP 1.93-m, grating spg.&\citet{gokgoz63}\\ 6&37209.6--39759.7&112& &OHP 1.93-m, grating spg.&\citet{delplace70a}\\ 11&37620.5--38421.4& 36& 0&Merate 1-m, grating spg.&\citet{aydinetal65}\\ 5&38702.0--38744.9& 5& 0&DAO 1.83\&1.22m, grating spg.&\citet{vdwel70}\\ 5& 39134.6 & 1& 0&KPNO 2.1-m, grating spg.&\citet{vdwel70}\\ 7&41952.0--42837.6& 23& 23&KPNO 1.0-m, grating spg.&\citet{abtilevy78}\\ 12&43867.1--47939.1& 44& 0&Xing-Long 0.6/0.9-m, grating spg.&\citet{guoetal95}\\ 13&45693.4--46134.4& 0& 33&StAndrews 0.5-m, grating spg.&\citet{jarad87}\\ 14&46451.7--47368.0& 6& 4&McDonald 2.1-m, CCD grating spg.&\citet{kaygis97}\\ %\noalign{\smallskip}\hline\noalign{\smallskip} 14&46447.6--47159.0& 32& 32&McDonald 2.1-m, CCD grating spg.&this paper: CCD spectra\\ 15&39852.5--48700.3&147& 0&Ond\v rejov 2.0-m, grating spg.&this paper: blue phg. spectra\\ 16&40316.3--48176.6& 38& 0&Ond\v rejov 2.0-m, grating spg.&this paper: red phg. spectra\\ 17&49049.3--51486.6& 39& 39&Ond\v rejov 2.0-m, grating spg.&this paper: Reticon spectra\\ 18&51898.4--52727.4& 7& 7&Ond\v rejov 2.0-m, grating spg.&this paper: Heros spectra\\ 19&52279.5--54490.4& 51& 51&Ond\v rejov 2.0-m, grating spg.&this paper: CCD spectra\\ 20&53077.8--54443.0& 20& 20&DAO 1.22-m, grating spg. & this paper: CCD spectra\\ 21&49592.7--51572.3& 3& 3&OHP 1.52-m, Elodie grating spg.&this paper: CCD spectra\\ 22&49779.6--54089.8&167& 0&Ritter 1.0-m, echelle spg.&this paper: CCD spectra\\ \hline \end{tabular} \vspace*{-3mm} \end{table}