CH Cyg - Etoile OHP 2013

OHP 2013
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Francois Teyssier
Posts: 1520
Joined: Fri Sep 23, 2011 1:01 pm
Location: Rouen
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CH Cyg - Etoile OHP 2013

Post by Francois Teyssier »

La symbiotique CH Cyg est l'étoile retenue pour comparer les différents résultats des participants à ce stage OHP 2013, en haute et basse résolution (LISA, Alpy600, Lhires ...)

Au LISA à R = 1000 :
_chcyg_20130801_993.png
_chcyg_20130801_993.png (5.98 KiB) Viewed 8238 times
Voici une comparaison avec un spectre de géante M6 III
CHCyg.png
CHCyg.png (6.6 KiB) Viewed 8237 times

On note l'aspect composite du spectre :
- continuum déformé dans le bleu par la naine blanche, avec les profondes bandes d'absorption produites par l'oxyde de titane (TiO)
- raies en émission, produites par la nébuleuse entourant les deux étoiles (vent stellaire issu de la géante rouge, excité par la naine blanche)

François Teyssier
Olivier Thizy
Posts: 370
Joined: Sat Sep 24, 2011 10:52 am
Location: in the french Alps...
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Re: CH Cyg - Etoile OHP 2013

Post by Olivier Thizy »

Hello,


here is my contribution to the CH Cyg "contest"... :-)


Equipment
* Televue 85mm refractor
* Alpy 600 spectrograph
* Atik 460EX acquisition camera
Equipment
Equipment
20130801_211425_resized.jpg (155.47 KiB) Viewed 8226 times

Result / Spectrum
CH Cyg.png
CH Cyg.png (11.81 KiB) Viewed 8226 times
Martin Dubs
Posts: 141
Joined: Fri Jan 06, 2012 9:16 pm
Location: Maienfeld, Switzerland

Re: CH Cyg - Etoile OHP 2013

Post by Martin Dubs »

Hello,

my little contribution from the OHP workshop:
spectrum Aug 1 with 19 mu slit, 10x120 sec Vixen VC200L, spectrum Aug 2 taken with 35 mu slit, 5x120 sec
spectrum Aug 1 with 19 mu slit, 10x120 sec Vixen VC200L, spectrum Aug 2 taken with 35 mu slit, 5x120 sec
CH Cyg slit.png (10.79 KiB) Viewed 8152 times
The spectra were obtained with the mount of Hubert Boussier (Takahashi), in a small international am-am-collaboration. Thank you Hubert for using your mount. As a little miracle no problems occurred combining the soft and hardware for finding the stars and autoguiding and taking the spectra.
With careful focusing resolution did not decrease much with the 35 mu slit, but giving more signal.

regards,
Martin
Attachments
CHCyg_Dubs130802.zip
(43.5 KiB) Downloaded 624 times
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