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HR spectra of symbiotic stars
Posted: Tue Apr 11, 2017 1:18 pm
by Christian Buil
Taken last night with VHIRES-MO spectrograph (R=48000) linked to a C11 telescope (by 50 microns fiber) :
TX CVn (one hour exposure, some cloud and... a faint objet for the resolution (V=9.5):
CQ Dra (no clear emission):
and the famous AG Dra:
Christian Buil
Re: HR spectra of symbiotic stars
Posted: Tue Apr 11, 2017 3:12 pm
by Francois Teyssier
Par coïncidence j'ai un spectre de CQ Dra la nuit passée à R =11000
- cqdra_20170410_comp.png (48.03 KiB) Viewed 6170 times
La différence de résolution est significactive
Ca permet de voir aussi à quel point la notion de "continuum" est relative.
François
Re: HR spectra of symbiotic stars
Posted: Tue Apr 11, 2017 9:29 pm
by Christian Buil
Très chouette comparaison François !
Christian
Re: HR spectra of symbiotic stars
Posted: Thu Apr 13, 2017 5:55 am
by Paolo Berardi
A coincidence again! With so many objects in the sky, on April 9 I observed the same stars with Lhires III 2400 (R ~16000).
CQ Dra (3 x 480 s):
TX CVn (10 x 960 s):
Clear sky,
Paolo
Re: HR spectra of symbiotic stars
Posted: Sat Apr 15, 2017 4:34 pm
by Christian Buil
T CrB at R=48000 (14/04/2017) :
Another TX CVn spectrum (16 x 600 sec exposure) :
Christian Buil
Re: HR spectra of symbiotic stars
Posted: Sun Apr 16, 2017 1:42 pm
by Christian Buil
Improved version of TX CVn (V=9.5) by adding 10.8/04 and 13.8/04 observation and by applied a special wavelet filtering processing on the data (only valid because my VHIRES-MO spectra are oversampled) (telluric lines are also removed):
Comparison with Paolo spectrum:
Christian Buil