Hi. Here is my latest low resolution (R= 993) spectra of SU Lyn (11X90sec 2x2 bin exposures with the CDK17 at F/6.8):
Per previous advice, I scaled the spectrum "long" on the Y-axis to bring up more detail on the shorter-wavelength side of the spectrum.
I'll try to get one more high resolution (Grating 1800 l/mm) spectra of the Ha region of SU Lyn before it slips behind my house in the next week or two.
James
Last edited by James Foster on Sat Apr 29, 2017 10:08 am, edited 3 times in total.
James Foster
eShel2-Zwo ASI6200MM Pro
Lhires III (2400/1800/600 ln/mm Grat) Spectroscope
LISA IR/Visual Spectroscope (IR Configured)
Alpy 200/600 with Guide/Calibration modules and Photometric slit
Star Analyzer 200
Impeccable, Jean-Pierre, j'attends ton spectre pour la base
James:
- OK for the Ca II absorptions
- HI balmer exist but are not visible at such a resolution (for this star at this phase)
- The other identifications (Ca and Cl) are wrong
You have only the variations of the pseudo contnuum
Cl III is not a common line in symbiotics. It appears, faint, in some planetary nebula
Highly ionized Ca lines can be observed in some symbiotics but require higher resolution
For lines identification, I suggest you choose stars with strong emissions, such as AG Dra, CI Cyg, CH Cyg, BF Cyg ...
RE:"James:
- OK for the Ca II absorptions
- HI balmer exist but are not visible at such a resolution (for this star at this phase)
- The other identifications (Ca and Cl) are wrong
You have only the variations of the pseudo contnuum
Cl III is not a common line in symbiotics. It appears, faint, in some planetary nebula
Highly ionized Ca lines can be observed in some symbiotics but require higher resolution..."
Ok. I reverted to my more trusty Bass V1.96 plot....will stick with that for awhile; hopefully the Fe at 4226A is real.
Wasn't that comfortable with Plotspectra in any case....
I'll leave the non-balmer lines out of the spectra to be less controversial.
Isis is almost too powerful for this novice user!
Sincerely
James
James Foster
eShel2-Zwo ASI6200MM Pro
Lhires III (2400/1800/600 ln/mm Grat) Spectroscope
LISA IR/Visual Spectroscope (IR Configured)
Alpy 200/600 with Guide/Calibration modules and Photometric slit
Star Analyzer 200