(abs11 * pow20)
xswabs[abs11]  (integrate: off)
    Param   Type      Value        Min        Max                 Units
    -----   ----      -----        ---        ---                 -----
 1     nH thawed     1.6675      1e-07         10            10^22/cm^2

Xspec function name: xsabsw.
powlaw1d[pow20]  (integrate: on)
    Param   Type      Value        Min        Max                 Units
    -----   ----      -----        ---        ---                 -----
 1  gamma thawed     0.8986        -10         10                      
 2    ref frozen          1     0.5694     9.0009                      
 3   ampl thawed     0.0002 1.4596e-07     0.0015