The Perils of Low S/N Data:

C17O(1-0) as observed in May 1998, with the FCRAO 14-m/SEQUOIA system

This web page follows up a discussion of some preliminary data analysis done by Hector Arce & Alyssa Goodman on 2/10/99. (Mark Heyer, David Wilner & Javier Ballesteros were also there for part of the 2/10/99 discussion.)

Notes:


Edited to only "decent" spectra (S/N >~3) Gives a map like:

 


These are just the points with S/N>5 in the integrated intensity fit.

 

For comparison, here's the binned IRAM plot:

Now, it's possible that the IRAM and FCRAO plots are consistent--if we use only the better than 5sigma in Tint/sigTint points.

AG--February 11, 1999 (click here to email Alyssa)