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Table 1:

Log of observations with their corresponding orbital phase; measurements of radial velocities (RVs) and line equivalent widths (EWs).
Date JD          Phase RV  $[{\rm km~s^{-1}}]$ EW  [Å]
  2 400 000+     Hg II $\lambda $3984 Mg II $\lambda $4481 Hg II $\lambda $3984 H$\beta $ He I $\lambda $4471 Mg II $\lambda $4481 Si II $\lambda $4130 Mn II $\lambda $5302
          Hg-Mn He-w     Hg-Mn He-w Hg-Mn He-w Hg-Mn He-w Hg-Mn He-w
2002-02-26 52 331.241a   0.640  48.6  48.2 -13.8 -    -    -    -    -    -    -    -    -    -   
2003-07-04 52 825.6..b   0.073 -   -52.2  87.1 -    -    -    -    -    -    -    -    -    -   
2003-07-07 52 828.6..b   0.265 -      5.4  36.9 -    -    -    -    -    -    -    -    -    -   
2005-03-28 53 457.541   0.253c  27.8  24.8  24.8 0.03 5.92 0.21 0.21 0.19 0.19 0.08 0.08 0.03 0.03
2005-03-28 53 457.610   0.257c  26.6  24.1  24.1 0.03 5.76 0.20 0.20 0.15 0.15 0.08 0.08 0.02 0.02
2005-03-28 53 457.701   0.263c  30.4  25.4  25.4 0.02 5.26 0.20 0.20 0.19 0.19 0.08 0.08 0.03 0.03
2005-03-29 53 458.567   0.318  57.8  57.1   -1.8 0.03 5.48 0.11 0.13 0.12 0.12 0.03 0.05 0.03 0.01
2005-03-29 53 458.630   0.322  58.2  57.0   -2.2 0.03 5.50 0.11 0.13 0.10 0.11 0.03 0.04 0.03 0.01
2005-03-29 53 458.703   0.327  59.5  58.2   -5.4 0.03 5.85 0.07 0.19 0.09 0.10 0.03 0.05 0.02 0.01
2005-06-17 53 539.479   0.463  95.6  99.1 -37.5 0.02 5.71 0.12 0.21 0.09 0.10 0.03 0.05 0.03 0.02
2005-06-17 53 539.484   0.463  99.1  98.1 -36.3 0.03 5.28 0.11 0.21 0.09 0.10 0.03 0.05 0.03 0.02
2005-06-19 53 541.481   0.590  87.4  85.1 -31.0 0.02 5.18 0.13 0.16 0.10 0.10 0.03 0.04 : :
2005-06-20 53 541.524   0.593  89.7  85.2 -27.0 0.02 5.46 0.16 0.18 0.09 0.10 0.03 0.05 0.02 0.02
2007-01-08 54 108.820   0.663  61.4  62.3   -8.5 0.02 5.89 0.11 0.15 0.09 0.11 0.03 0.05 0.02 0.01
2007-04-27 54 218.464   0.634  70.5  72.4 -17.8 0.02 5.39 0.10 0.17 0.09 0.12 0.03 0.05 0.02 0.01
2007-06-10 54 261.503   0.371  80.3  79.3 -15.4 0.02 5.52 0.08 0.14 0.09 0.11 0.03 0.05 0.02 0.01
2008-05-11 54 597.519   0.736c  23.4  22.7  22.7 0.03 4.68 0.25 0.25 0.18 0.18 0.08 0.08 0.03 0.03
2008-05-13 54 600.472   0.924 -50.0 -42.4  78.9 0.04 4.45 0.10 0.22 0.07 0.10 0.04 0.05 0.03 0.01
2008-05-14 54 601.455   0.986 -54.1 -52.5  83.5 0.03 4.71 0.13 0.23 0.08 0.10 0.05 0.05 0.03 0.01
2008-05-15 54 602.453   0.049 -57.1 -49.7  80.8 0.04 4.89 0.13 0.28 0.08 0.10 0.05 0.06 0.02 0.01
2008-05-16 54 602.629   0.061 -44.3 -47.3  83.2 0.03 4.95 0.10 0.23 0.08 0.10 0.05 0.05 0.03 0.02
2008-05-17 54 603.553   0.119 -32.6 -33.3  69.8 0.04 4.80 0.12 0.18 0.07 0.09 0.04 0.06 0.02 0.01
2008-05-18 54 604.624   0.187   -2.5   -4.3  48.5 0.04 5.37 0.13 0.15 0.08 0.10 0.03 0.05 0.02 0.01
2008-05-18 54 605.457   0.240c    9.5  23.0  23.0 0.04 4.98 0.21 0.21 0.19 0.19 0.08 0.08 0.02 0.02
2008-05-19 54 605.545   0.246c  11.4  22.9  22.9 0.03 5.26 0.20 0.20 0.18 0.18 0.09 0.09 0.06 0.06
2008-05-20 54 606.594   0.313  42.8  53.5    0.7 0.02 4.88 0.13 0.10 0.07 0.10 0.02 0.06 0.02 0.01

Notes. Because the H$\beta $ feature could not be deconvolved into its stellar components, the EW quoted in the table corresponds to the total value.
(a) ESO Science Archive Catalog (Vizier); (b) from Nitschelm (2004); (c) these phases are near conjunction, where HD 90264 shows a single-lined spectrum. For those lines that are present in both stars, the RV and line-EW values measured in these single-lined spectra were repeated.


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