Re: CH Cygni
Posted: 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:
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
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