./guide
recombhe.pro

Last modification date:

Wed Sep 28 13:27:09 2016

recombhe

procedure recombhe[, dn], [/doPrint]

Plot the Helium recombination lines for quantum jump of dN. Defaults to plotting the alpha lines (dN=1).

Originally by Glen Langston, glangsto\@nrao.edu

Molecular Formula from Tools of RadioAstronomy, Rolfs and Wilson, 2000, pg 334

 v_ki = Z^2 R_M ( 1/i^2  - 1/k^2), where R_M = R_infinity/(1 + m/M)
 v_ki = R_A     ( 1/i^2  - 1/k^2) (k > i)
 
 where for helium values (MHz), R_a = 3.28939118E9



Examples


   recombh,2,/doprint


Uses

 freq
 veltovel
 shiftvel
 shiftfreq
 decode_veldef
 show
 vline
 getxrange
 getyrange
 getxvoffset
 getxunits
 getxoffset
 getplotterdc
 textoidl


Version

 $Id$





Parameters




dn


in, optional

integer (def. 1)



 The quantum jump
 to calculate (1 is alpha, 2 is beta, etc).






Keywords




doPrint


in, optional

boolean (def. 0)



 optionally print
 the line frequencies.  The printed frequencies are the line
 frequencies in the frame being displayed on the plotter.






Produced by IDLdoc 1.6 on Wed Sep 28 13:27:36 2016