DEREDD

     Deredden stellar Stromgren parameters given for a value of E(b-y)

     See the procedure UVBYBETA for more info.

     deredd, eby, by, m1, c1, ub, by0, m0, c0, ub0, /UPDATE

     Eby - color index E(b-y),scalar  (E(b-y) = 0.73*E(B-V) )
     by - b-y color (observed)
     m1 - Stromgren line blanketing parameter (observed)
     c1 - Stromgren Balmer discontinuity parameter (observed)
     ub - u-b color (observed)
     These input values are unaltered unless the /UPDATE keyword is set

     by0 - b-y color (dereddened)
     m0 - Line blanketing index (dereddened)
     c0 - Balmer discontinuity parameter (dereddened)
     ub0 - u-b color (dereddened)

     /UPDATE - If set, then input parameters are updated with the dereddened
           values (and output parameters are not used).

     Adapted from FORTRAN routine DEREDD by T.T. Moon
     W. Landsman          STX Co.        April, 1988
     Converted to IDL V5.0   W. Landsman   September 1997

[Home Page] [Software, Documentation] [IDL Documentation] [Quick Reference] [Feedback]