Changes between Version 6 and Version 7 of u/erica/CF_coldens

Timestamp:

01/19/15 15:00:41 (10 years ago)

Author:

Erica Kaminski

Comment:

—

u/erica/CF_coldens

@@ -22 +22 @@
 
 Note, for my setup, lscale is the number of cm in 1 pc, and my nscale is 1. This means that computational density and length can be thought of as being in units of cm^-3^ and pc. Thus the quantity the code gives for 'projected column density in computational units' is for all intents and purposes, in units of pc/cm^3^. To convert this to 1/cm^2^, multiply by the conversion factor 1pc = 3.08567758 × 10^18^ cm (which is of course equivalent to multiplying by nscale and lscale as stated above).
+
+Also, as an aside, when the scales are all set to 1 in the code, this makes all computational units = cgs. Since nscale is rhoscale/X, this means that nscale is essentially Avogadro's number (over the mean molecular weight). Other scales in the code behave nicer than in nscale in that they are interrelated directly.