[vsnet-campaign-be 252] Re: [amateur_spectroscopy] FWHM of Del Sco H Alpha Line

[Michael Koppelman <lolife@bitstream.net>]

Yeah, I probably over-stated that. We are working with spectra given to 
us by others, so we can't control the acquisition process. This is 
high-quality data, though, from the HST and others. The EW technique at 
least should minimize if not eliminate minor differences in focus. Yes?

I'm working on some software to perform the EW calculation. Does anyone 
know of other software that does this?

Cheers,
Michael Koppelman

On Monday, July 14, 2003, at 10:14 AM, Thom Gandet wrote:

>    I couldn't agree at all that defocus is a non-issue.  It's sloppy
> lab technique to be careless about focus - or any other aspects of
> one's instruments.  That kind of carelessness leads to bad - or, at
> least, untrustworthy, science.