All Tables

Table 1: Log of the observations presented in this paper.
Table 2: Best-fit parameters and results for the analysis of the nuclear spectra of NGC 6251. Model legenda: PL = power-law; TH = thermal component ( mekal implementation in X SPEC) with solar abundances; GA = Gaussian emission line; BKPL = broken power-law.
Table 3: 90% upper limits on the ACIS-I count rates (CR), 0.5-10 fluxes (F), and 1 keV flux density ( $S_{\nu }$ ) across the NGC 6251 jet regions (following their definition in Birkinshaw & Worrall 1993). The distance d is defined from the inner-outer border of each region to the core. Fluxes are calculated assuming a power-law spectrum, with $\Gamma =2$ and photoelectric absorption column density $N_{\rm H} = 5.7 \times 10^{20}$ cm^-2.
Table 4: Sources detected in the ACIS-I observation of the NGC 6251 field, within 4 $\hbox {$^\prime $ }$ from the core.