sz_fx

PURPOSE

fx=sz_fx(nu)

SYNOPSIS

function fx=sz_fx(nu)

DESCRIPTION

 fx=sz_fx(nu)

 Spectral distortion function f(x) due to SZ.
 
 x is dimensionless frequency x=(h*nu)/(k*T)

 e.g.

 nu=[1:1:300]*1e9;
 plot(nu,sz_fx(nu));

 see also sz_relcor.m

CROSS-REFERENCE INFORMATION

This function calls:

This function is called by:

mosaic_srcfit [par,p, loc]=mosaic_srcfit(type,peak,uvcut,ad,ads,o,p,beam,g)
szevis V=szesrc(par,u,v,band,nu)

SOURCE CODE

0001 function fx=sz_fx(nu)
0002 % fx=sz_fx(nu)
0003 %
0004 % Spectral distortion function f(x) due to SZ.
0005 %
0006 % x is dimensionless frequency x=(h*nu)/(k*T)
0007 %
0008 % e.g.
0009 %
0010 % nu=[1:1:300]*1e9;
0011 % plot(nu,sz_fx(nu));
0012 %
0013 % see also sz_relcor.m
0014 
0015 h=6.626e-34;
0016 k=1.38e-23;
0017 T=2.726;
0018 
0019 x=(h*nu)/(k*T);
0020 
0021 fx=x.*(exp(x)+1)./(exp(x)-1)-4;
0022 
0023 return