\begin{table}%T2
\caption{\label{table:2}Spectroscopic results.}
\small
%\centerline
{ 
\begin{tabular}{l c c c}        
\hline\hline                 
Data set (revolution)  & 061--064 & 119--122 & 495 \\   
\hline \noalign{\smallskip}
\multicolumn{4}{c}{\sc wabs*comptb$^a$}     \\ % To combine 4 columns into a single one
$k{T}_{\rm s}$~(keV)               & $1.06~^{\rm +0.07}_{-0.06}$ & $0.95 \pm 0.05$         & $0.45~^{\rm +0.09}_{-0.14}$ \\[1mm]
$\alpha$ index                       & $1.05~^{\rm +0.04}_{-0.03}$ & $1.03 \pm 0.03$         & $0.85~^{\rm +0.02}_{-0.01}$ \\[1mm]
$k{T}_{\rm e}$~(keV)                  & $20.1~^{\rm +1.7}_{-1.2}$   & $19.4~^{\rm +1.0}_{-0.9}$   & $13.5 \pm 0.8$          \\[1mm]
const.$^b$  & $0.671~^{\rm +0.028}_{-0.032}$ & $0.732~^{\rm +0.027}_{-0.025}$ & $0.932~^{\rm +0.029}_{-0.037}$ \\[1mm]
$\rm{red.} ~\chi^{2}$ (d.o.f.)       &  1.076 (360)            &  1.092 (361)            &  1.094 (344)            \\ 
flux 2--20~keV$^c$  & $1.11\times 10^{-9}$ & $1.34\times 10^{-9}$ & $1.02\times 10^{-9}$ \\
flux 20--200~keV                     & $1.23\times 10^{-9}$    & $1.34\times 10^{-9}$    & $0.80\times 10^{-9}$    \\
flux 2--200~keV                      & $2.34\times 10^{-9}$    & $2.68\times
10^{-9}$    & $1.82\times 10^{-9}$    \\
luminosity$^d$
  ({\rm erg~s$^{-1}$})  & $1.76\times 10^{37}$    & $1.92\times10^{37}$    &  $1.42\times 10^{37}$   \\  
$\tau$~$^e$     & $3.4$    & $3.5$                   & $5.3$ \\
$CAF^{~d}$                                           & $3.8$    & $3.9$                   &$11.5$ \\
\hline\noalign{\smallskip}
\multicolumn{4}{c}{\sc wabs*comptt} \\
$k{T}_{0}$~(keV)               & $1.02 \pm 0.06$         & $0.91 \pm 0.05$         & $0.33 \pm 0.04$  \\
$k{T}_{\rm e}$~(keV)                  & $21.5~^{\rm +2.2}_{-1.7}$   & $20.0~^{\rm +1.2}_{-1.0}$   & $14.6~^{\rm +1.3}_{-1.1}$   \\[1mm]
$\tau$$^f$    & $3.81~^{\rm +0.33}_{-0.36}$ & $4.12~^{\rm +0.23}_{-0.24}$ & $5.55~^{\rm +0.33}_{-0.35}$ \\[1mm]
const. 			             & $0.680~^{\rm +0.031}_{-0.029}$ & $0.756~^{\rm +0.026}_{-0.025}$ & $0.900~^{\rm +0.043}_{-0.041}$ \\[1mm]
$\rm{red.} ~\chi^{2}$ (d.o.f.)       &  1.064 (360)            &  1.081 (361)            &  1.070 (344)            \\
flux 2--200~keV                      & $2.34\times 10^{-9}$    & $2.68\times 10^{-9}$    & $1.85\times 10^{-9}$    \\
\hline\noalign{\smallskip}
\multicolumn{4}{c}{\sc wabs*cutoffpl} \\
$E_{\rm cut}$~(keV)            & $51.9~^{\rm +4.0}_{-3.5}$      & $55.9~^{\rm +3.2}_{-2.9}$ & $49.0~^{\rm +6.1}_{-5.1}$ \\
$\Gamma$                       & $1.57 \pm 0.05$            & $1.62 \pm 0.03$       & $1.62 \pm 0.04$       \\
const. 				 & $0.784~^{\rm +0.035}_{-0.034}$ & $0.829~^{\rm +0.028}_{-0.027}$ & $0.825~^{\rm +0.038}_{-0.037}$ \\[1mm]
$\rm{red.} ~\chi^{2}$ (d.o.f.) &  1.022 (361)               &  1.065 (362)          &  1.001 (345)          \\
flux 2--200~keV                & $2.46\times 10^{-9}$       & $2.83\times 10^{-9}$  & $1.91\times 10^{-9}$  \\ 
\hline 
\end{tabular}}
\smallskip
$^a$ Name of the Xspec model. $n_{\rm H}$ fixed to $3.0\times 10^{21}~\rm{H~cm}^{-2}$ in all fits. All errors are 90\% probability. $^b$ JEM-X/ISGRI normalisation ratio (see Sect.~2). $^c$~All fluxes in \ergcms. $^d$~Unabsorbed, 0.1$-$200~keV, assumed distance of 7 kpc. $^e$~Derived parameter (see Sect.~3). $^f$ Assumed spherical geometry.
%\vspace*{4mm}
\end{table}