CH Cygni

Information about outbursts of eruptive stars, Be activity, ...

Re: CH Cygni

Postby James Foster » Fri Oct 13, 2017 8:45 am

Here is my first CH Cyg Ha spectra with the LihresIII using the 2400 l/mm grating on the CDK17 telescope with a 23 micron slit:
Image
I used an Ha Vega spectra (same night) to generate the IR file. I also used another set of flats (10x at adu 59K each) taken right after the last set of the calibration lamp images.

Processed in Isis V5.90 using the 3 Ne-Ar lines seen in the calibration lamp set. I didn't eliminate the telluric/h2o lines. I have an Hb spectrum as well, but that will take a little more practice to reduce since the calibration lines in blue are so dim and need to be identified against my Ne-Ar reference chart. Let me know if anything seems amiss.

James
James R. Foster
Lhires III (2400 & 1800 ln/mm Grat) Spectroscope,
LISA Visual & IR Kit Spectroscope, and
Star Analyzer 200
James Foster
 
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