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phabs

A photoelectric absorption using Balucinska-Church and McCammon (ApJ 400, 699) cross-sections. The relative abundances are set by the abund command.

displaymath12873

where tex2html_wrap_inline12531 is the photo-electric cross-section (NOT including Thomson scattering) and 

par1	 = 	equivalent hydrogen column (in units of tex2html_wrap_inline12819 atoms/cmtex2html_wrap_inline12909 )

Keith Arnaud (kaa@genji.gsfc.nasa.gov)
Wed May 28 10:59:33 EDT 1997