All Tables

Table 1: Sources falling in the RGS field of view with an EPIC flux more than 20% that of $\sigma$ Ori AB. Count rates are MOS equivalent count rates. Identified stars are all members or candidate members of the $\sigma$ Ori cluster.
Table 2: Best-fit parameters for the EPIC spectra of the four sources in Table 1. Note that the fit to $\sigma$ Ori E refers to the global (quiescent+flare) spectrum. Errors are 90% confidence ranges for one interesting parameter.
Table 3: Measured RGS line fluxes^a of $\sigma$ Ori AB. $\log T_{\rm max}$ indicates the maximum temperature (K) of formation of the line (unweighted by the EMD). "Ratio'' is $\log (F_{\rm obs}/F_{\rm pred})$ for each line. Blends amounting to more than 5% of the total flux for each line are indicated.
Table 4: Time-resolved spectroscopy of $\sigma$ Ori E. Errors are 90% confidence ranges for one interesting parameter.