[daip] question about MOMNT
Doug Ratay
doug at astro.ufl.edu
Tue Sep 17 17:06:52 EDT 2002
Hi. I have a question about the second moment calculation in the MOMNT
task in aips. I recently calculated the second moment of a HI cube, and
found that the peaks in the velocity dispersion corresponded with the
peaks in the HI distribution. This could be physical and reflective of
the real data, but I wanted to make sure that AIPS actually divides out
the sum of the brightness temperatures. Or is that something I have to do
by hand later? If there is a different equation that AIPS uses for the
second moment from the standard statistics definition, is that listed
somewhere. Thanks alot. If there is any other info that you need from
me, please let me know.
Doug Ratay
University of Florida
More information about the Daip
mailing list