DEREDD
Name
DEREDD
Purpose
Deredden stellar Stromgren parameters given for a value of E(b-y)
Explanation
See the procedure UVBYBETA for more info.
Calling Sequence
deredd, eby, by, m1, c1, ub, by0, m0, c0, ub0, /UPDATE
Inputs
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
Outputs
by0 - b-y color (dereddened)
m0 - Line blanketing index (dereddened)
c0 - Balmer discontinuity parameter (dereddened)
ub0 - u-b color (dereddened)
Optional Input Keywords
/UPDATE - If set, then input parameters are updated with the dereddened
values (and output parameters are not used).
Revision History
Adapted from FORTRAN routine DEREDD by T.T. Moon
W. Landsman STX Co. April, 1988
Converted to IDL V5.0 W. Landsman September 1997