\begin{table}%t1
\caption{\label{tab1}The description of the analysed stars and their observations. The observation time relates to the beginning of the exposure.}
%\centering
\small
\begin{tabular}{lllccccll}
\hline\hline
HD     & Sp. type & Spectrograph & Obs. date & Obs. time & $V$    &$E(B-V)$ &Binarity & Abundance analysis \\ 
       &         &              & [UT]      & [UT]      & [mag]& [mag]   &         &                    \\ 
\hline
42677  & B8      & FEROS  & 2002-01-27&	03:37:43&  7.79&0.06   &                            &  \\
43406  & B9      & ELODIE & 2003-01-27&	18:40:31&  7.16&0.00   &                            &  \\
43461  & B6V     & FEROS  & 2002-01-28&	00:40:32&  6.63&0.09   &                            &  \\
43743  & B9      & FEROS  & 2002-01-28&	00:57:28&  7.70&0.00   &                            &  \\
44321  & B9      & FEROS  & 2003-01-15&	02:41:10&  7.64&0.01   &                            &  \\
44354  & B9      & FEROS  & 2003-01-17&	01:40:47&  7.70&0.01   &                            &  \\
44720  & B8      & FEROS  & 2003-01-17&	01:58:58&  7.22&0.01   &                            &  \\
44948  & B8Vp    & FEROS  & 2003-01-17&	02:05:02&  6.73&0.02   & 3, 4, 5, 6, 7, 8           &  \\
45050  & B9V     & FEROS  & 2003-01-15&	03:11:35&  6.66&0.02   & 3, 4, 5, 6, 9, 10, 11      &  \\
45153  & B8      & FEROS  & 2003-01-15&	03:16:54&  7.30&0.01   &                            &  \\
45397  & B8      & FEROS  & 2003-01-14&	03:40:40&  7.81&0.01   & 3, 5, 6                    &  \\
45515  & B8V     & FEROS  & 2003-01-17&	02:48:56&  7.88&0.01   &                            &  \\
45516  & B9      & FEROS  & 2003-01-17&	02:56:49&  7.82&0.01   &                            &  \\
45563  & B9V     & FEROS  & 2003-01-15&	03:57:36&  6.48&0.00   & 5, 6                       &  \\
45583  & B8      & FEROS  & 2003-01-17&	03:11:31&  7.98&0.01   &                            &14, 15\\
45657  & B9      & FEROS  & 2002-01-28&	02:26:30&  7.89&0.00   &                            &  \\
45709  & B9      & FEROS  & 2003-01-16&	01:05:41&  7.55&0.00   &                            &  \\
45760  & B9.5V   & FEROS  & 2003-01-15&	04:08:40&  7.56&0.00   &                            &  \\
45975  & B9      & FEROS  & 2003-01-16&	01:29:11&  7.46&0.03   &                            &  \\
46138  & B9      & FEROS  & 2003-01-14&	04:20:52&  7.46&0.00   &                            &  \\
46179  & B9V     & ELODIE & 2003-01-16&	19:26:53&  6.69&0.02   & 3, 4, 5, 6                 &  \\
46340  & B8      & FEROS  & 2002-01-28&	03:27:09&  7.65&0.00   & 3, 4, 6                    &  \\
46541  & B9      & FEROS  & 2003-01-16&	01:41:58&  7.90&0.03   &                            &  \\
       &         &        & 2003-01-18&	00:54:29&      &       &                            &  \\
46885  & B9III   & ELODIE & 2003-01-16&	20:27:27&  6.55&0.02   &                            &  \\
46886  & B9      & FEROS  & 2002-01-28&	03:43:57&  7.95&0.01   &                            &  \\
47022  & B9      & ELODIE & 2003-01-16&	22:19:10&  7.74&0.00   &                            &  \\
       &         &        & 2003-01-15&	21:11:44&      &       &                            &  \\
47221  & B9      & ELODIE & 2003-01-27&	00:00:45&  7.81&0.00   &                            &  \\
47257  & B9      & ELODIE & 2003-01-18&	19:45:23&  7.26&0.00   &                            &  \\
47272  & B9V     & ELODIE & 2003-01-24&	20:06:06&  7.62&0.03   &                            &  \\
47278  & B9      & FEROS  & 2002-01-28&	04:45:28&  7.23&0.07   &                            &  \\
47431  & B8IIIn  & ELODIE & 2003-01-16&	20:44:13&  6.57&0.03   &                            &  \\
47756  & B8IIIs  & ELODIE & 2003-01-15&	23:42:53&  6.51&0.00   &                            &  \\
47759  & B9      & ELODIE & 2003-01-22&	21:27:32&  7.52&0.00   &                            &  \\
47964  & B8III   & FEROS  & 2003-01-15&	05:17:48&  5.79&0.00   & 3, 4, 5, 6                 &  \\
48212  & B9      & ELODIE & 2003-01-26&	23:17:17&  7.80&0.04   & 4, 5, 6                    &  \\
48497  & B8      & FEROS  & 2003-01-16&	03:22:30&  7.50&0.00   &                            &  \\
48808  & B9      & FEROS  & 2003-01-14&	05:18:29&  7.45&0.04   &                            &  \\
48957  & B9      & FEROS  & 2003-01-15&	05:54:50&  8.00&0.03   & 4, 5, 6                    &  \\
49123  & B9      & FEROS  & 2003-01-17&	03:32:18&  7.22&0.02   &                            &  \\
49481  & B8      & FEROS  & 2003-01-18&	04:07:10&  6.80&0.04   &                            &  \\
49643  & B8IIIn  & FEROS  & 2003-01-16&	05:06:34&  5.75&0.00   & 3, 4, 5, 6, 9, 12          &  \\
49711  & B8V     & ELODIE & 2003-01-18&	20:52:53&  7.43&0.06   &                            &  \\
49713  & B9p     & FEROS  & 2003-01-15&	06:24:29&  7.32&0.00   &                            &  \\
49886  & B8      & FEROS  & 2003-01-17&	03:52:32&  7.58&0.00   &                            &  \\
49935  & B8      & FEROS  & 2003-01-16&	05:11:05&  6.86& --    &                            &  \\
50251  & B8V     & FEROS  & 2003-01-18&	04:25:34&  7.20&0.01   &                            &  \\
50252  & B9V     & FEROS  & 2003-01-17&	04:06:13&  7.95&0.07   &                            &  \\
50513  & B8      & FEROS  & 2003-01-17&	04:21:58&  7.82&0.00   &                            &  \\
50751  & B8      & FEROS  & 2003-01-17&	04:37:56&  7.90&0.00   &                            &  \\
51079  & B8V     & FEROS  & 2003-01-18&	05:12:03&  7.94&0.04   &                            &  \\
52312  & B9III   & FEROS  & 2003-01-18&	05:35:03&  5.96&0.01   & 3, 4, 5, 6                 &  \\
53004  & B9      & FEROS  & 2003-01-14&	07:00:14&  7.26&0.03   & 3, 4, 5, 6                 &  \\
53083  & B8      & FEROS  & 2003-01-15&	07:24:17&  7.10&0.02   &                            &  \\
53851  & B9      & FEROS  & 2003-01-14&	07:21:06&  7.58&0.00   &                            &  \\
54929  & B9      & FEROS  & 2003-01-18&	06:42:53&  7.34&0.02   & 3, 4, 5, 6                 &  \\
55362  & B9      & FEROS  & 2003-01-14&	07:58:01&  7.95&0.00   &                            &  \\
55793  & B8      & FEROS  & 2003-01-14&	08:07:45&  7.86&0.01   &                            &  \\
56006  & B8      & FEROS  & 2003-01-17&	07:04:32&  7.69&0.06   &                            &  \\
56446  & B8III   & FEROS  & 2003-01-15&	08:11:38&  6.65&0.00   &                            &  \\
56610  & B9      & FEROS  & 2003-01-17&	07:19:19&  7.80&0.00   &                            &  \\
56613  & B9      & FEROS  & 2003-01-18&	07:24:51&  7.10&0.00   &                            &  \\
\hline
57275  & B9      & ELODIE & 2001-11-28&	03:24:06&  6.90&0.00   & 3, 4, 6, 5, 7              &  \\
57293  & B9III--IV& FEROS  & 2003-01-16&	07:54:23&  7.99&0.03   & 3, 4, 6, 5, 7, 12          &  \\
168202 & B9      & ELODIE & 2002-08-15&	19:37:44&  7.50&0.00   &                            &  \\
168932 & B9      & FEROS  & 2001-07-05&	02:56:50&  7.28&0.00   & 1, 2                       &  \\
169224 & B9      & ELODIE & 2002-08-16&	20:11:21&  7.50&0.04   &                            &  \\
169225 & B9      & FEROS  & 2001-07-05&	03:06:33&  7.72&0.01   &                            &  \\
169512 & B9      & ELODIE & 2002-08-19&	19:36:33&  7.91&0.15   & 3, 4, 5, 6, 7              &  \\
169578 & B9V     & FEROS  & 2001-07-06&	07:28:52&  6.73&0.09   & 1, 2                       &  \\
170783 & B5      & ELODIE & 2000-06-18&	00:38:18&  7.73&0.34   &                            &  \\
       &         &        & 2000-06-18&	00:57:09&      &       &                            &  \\
170935 & B8      & ELODIE & 2002-08-18&	19:27:06&  7.38&0.20   &                            &  \\
171247 & B8IIIsp & FEROS  & 2001-07-07&	04:42:34&  6.42&0.07   & 3, 4, 5, 6                 &13\\
171931 & B9      & FEROS  & 2005-06-18&	02:07:17&  9.19&0.26   &                            &  \\
172850 & B9      & FEROS  & 2001-07-05&	04:10:15&  7.75&0.08   &                            &  \\
173673 & B8      & FEROS  & 2001-07-05&	04:43:37&  7.65&0.13   &                            &  \\
174701 & B9      & FEROS  & 2001-07-05&	06:07:22&  8.00&0.15   & 4, 5, 6                    &  \\
174836 & B9      & FEROS  & 2001-07-05&	06:22:37&  7.89&0.00   &                            &  \\
174884 & B8      & ELODIE & 2000-06-10&	01:24:45&  7.99&0.00   &                            &  \\
       &         &        & 2000-06-10&	02:06:56&      &       &                            &  \\
176076 & B9      & FEROS  & 2001-07-05&	07:19:25&  7.28&0.06   &                            &  \\
176158 & B9      & FEROS  & 2001-07-05&	07:39:42&  7.52&0.22   &                            &  \\
176258 & B9V     & FEROS  & 2001-07-07&	05:44:09&  7.52&0.00   &                            &  \\
177756 & B9Vn    & FEROS  & 2001-07-06&	02:32:47&  3.43&0.00   &                            &  \\
177880 & B5V     & FEROS  & 2001-07-06&	04:23:07&  6.76&0.26   & 3, 4, 5, 6                 &  \\
178744 & B5Vn    & FEROS  & 2001-07-05&	09:28:56&  6.33&0.00   &                            &  \\
179124 & B9V     & FEROS  & 2001-07-06&	09:12:42&  6.90&0.04   &                            &  \\
179761 & B8II--III& FEROS  & 2001-07-07&	06:03:24&  5.14&0.05   & 3, 4, 5, 6                 &16, 17, 18, 19, 20, 21, 22,\\
       &         &        &           &         &      &       &                            &23, 24, 25, 26, 27, 28, 29,\\
       &         &        &           &         &      &       &                            &30, 31 \\
181440 & B9III   & FEROS  & 2001-07-05&	09:44:56&  5.48&0.02   &                            &  \\
181761 & B8      & FEROS  & 2001-07-04&	09:34:12&  7.94&0.01   &                            &  \\
182198 & B9V     & FEROS  & 2001-07-06&	04:35:39&  7.94&0.04   &                            &  \\
\hline
\end{tabular}
\medskip
References: (1) Frankowski et~al. (\cite{frankowski}); (2) Makarov et~al. (2005); (3) Dommanget \& Nys (\cite{dommanget2000}); (4) Dommanget \& Nys (\cite{dommanget2002}); (5) Fabricius et~al. (\cite{fabricius}); (6) Mason et~al. (\cite{mason}); (7) Abt (\cite{abt1985}); (8) Horch et~al. (\cite{horch}); (9) Sowell \& Wilson (\cite{sowell}); (10) Abt \& Boonyarak (\cite{abt2004}); (11)~Abt (\cite{abt2005}); (12) Hartkopf et~al. (\cite{hartkopf}); (13) Leone \& Manfre (\cite{leone1996}); (14) Semenko et~al. (\cite{semenko}); (15) Levato \& Malaroda (\cite{levato}); (16) Searle et~al. (\cite{searle}); (17) Sargent et~al. (\cite{sargent}); (18) Durrant (\cite{durrant}); (19) Adelman (\cite{adelman1984}); (20) Adelman \& Fuhr (\cite{adelman1985}); (21) Adelman (\cite{adelman1991}); (22) Roby \& Lambert (\cite{roby}); (23) Adelman et~al. (\cite{adelman1993}); (24) Smith (\cite{smith1993}); (25) Smith \& Dworetsky (\cite{smithdworetsky1993}); (26) Smith (\cite{smith1994}); (27) Smith (\cite{smith1996}); (28)~Smith (\cite{smith1997}); (29) Adelman et~al. (\cite{adelman2004}); (30) Ryabchikova  (\cite{ryabchikova}); (31) Cenarro et~al. (\cite{cenarro}).
\end{table}