The appropriate units for the spectrum file specified above
(1=photons cm s
erg
, 0=erg cm
s
erg
).
Default is 0
New in version 221bn18 is a feature which
allows reading in of table spectra in units
of log10(F), where F
has units
erg cm
s
erg
. This requires that the spectun
input parameter be set to 2.