All Tables

Table 1: EXPORT UES/WHT observing logs of BF Ori, SV Cep, WW Vul and XY Per. The Julian date (-2 450 000) of each spectrum is given in Col. 1. Column 2 shows the exposure time in seconds. Column 3 gives the SNR at $\lambda \simeq 4680$ Å. Columns 4 to 6 give simultaneous V, %P_V and K photopolarimetric data, where available. Typical errors are 0.10 in V, 0.05 in K and 0.1% in %P_V.
Table 2: Stellar parameters defining the "best'' synthetic Kurucz models for each star. See Sect. 3.1 for a discussion on the uncertainties of $T_{\rm eff}$ , log g and $v\sin i$ .
Table 3: Ratios of the average $R_{\rm max}$ parameter of several lines to Fe II 4924 Å $\langle R_{\rm max,~line} / R_{\rm max,~Fe {\sc ii} 4924 ~\AA}\rangle$ ) for each star. The values correspond to lines in TACs which are most likely not saturated (see text). Values with no error mean that only one TAC is available. The sigma-clipping threshold adopted is 2.0 $\sigma$ , except for the values followed by the symbol $\dagger$ , in which 1.5 $\sigma$ has been used. The percentage of rejected lines is given in brackets.
Table 4: Estimated $\langle R_{\rm max,~line} / R_{\rm max,~ref.line}\rangle$ ratios among the lines of the Na I D doublet and the Fe II 42 triplet for each star. The theoretical ratios ( gf $_{\rm line}$ / gf $_{\rm ref.line}$ ) and the line taken as reference are given in the last column The Fe II 5169 Å line is included for comparison purposes though its ratios are likely affected by the blend with Mg I 5167 Å, Fe I 5167 Å and Mg I 5173 Å.
Table 5: Column density estimates (according to Eq. (1)) of ions excited to the energy ground level of Balmer and Fe II 42 triplet lines for events WW Vul #7 (metallic) and XY Per #8.
Table 6: Identified Transient Absorption Components (TACs) in BF Ori. Column 1 gives the corresponding Balmer or metallic line, Col. 2 gives the Julian Date (-2 450 000), Col. 3 represents the event assigned to the particular absorptions (see text Sect. 3.2), Cols. 4 to 6 give the parameters of each transient absorption as estimated from the multiGaussian fit of the normalized residual absorption R: v, radial velocity, $\Delta v$ , FWHM, and $R_{\rm max}$ , the strength of the absorption (peak of the Gaussian). "0'' in Col. 3 corresponds to the narrow IS absorptions, while "-'' means that the absorption is not associated with a particular event.
Table 7: Identified Transient Absorption Components (TACs) in SV Cep. Details as for Table 6.
Table 8: Identified Transient Absorption Components (TACs) in WW Vul. Details as for Table 6.
Table 9: Identified Transient Absorption Components (TACs) in XY Per. Details as for Table 6.