Dramatic change of H alpha profile
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Re: Dramatic change of H alpha profile
Global display of some recent spectra of CH Cyg taken with VHIRES-MO (R=50000) and a 8-inch telescope:
Date: 24.099 / 04 / 2015
Date: 31.081/ 04 / 2015
Date: 4.922 / 04 / 2015 (stack of only 4x600 sec. short for VHIRES)
Date: 5.971 / 04 / 2015 (bad weather)
(note change in He5876 line)
Detail of 6300 A OI line (RV not corrected):
Christian Buil
Date: 24.099 / 04 / 2015
Date: 31.081/ 04 / 2015
Date: 4.922 / 04 / 2015 (stack of only 4x600 sec. short for VHIRES)
Date: 5.971 / 04 / 2015 (bad weather)
(note change in He5876 line)
Detail of 6300 A OI line (RV not corrected):
Christian Buil
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Re: Dramatic change of H alpha profile
After posting my animation for the night of June 4th I was worried that possibly the variations were just noise.
To check this I grouped them into 9 4x300 sec spectra to reduce noise and plotted an overlay. Same normalization as before (6600A - 6620A).
It still looks like the complex Ha line may be varying a small amount all the time on a relatively short time scale.
Tim
To check this I grouped them into 9 4x300 sec spectra to reduce noise and plotted an overlay. Same normalization as before (6600A - 6620A).
It still looks like the complex Ha line may be varying a small amount all the time on a relatively short time scale.
Tim
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Re: Dramatic change of H alpha profile
Hello,
Low resolution spectrum of CH Cyg with Alpy 600
Hight resolution spectrum (Halpha line) with LhiresIII 2400 t/mm
Best regards,
Low resolution spectrum of CH Cyg with Alpy 600
Hight resolution spectrum (Halpha line) with LhiresIII 2400 t/mm
Best regards,
--
Jacques Montier
Societe d'Astronomie de Rennes
IAU code J23
Jacques Montier
Societe d'Astronomie de Rennes
IAU code J23
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Re: Dramatic change of H alpha profile
Bonsoir à tous,voici mon animation où il y avait un effet significatif P-cyg sur le H-bêta de heures 2,35 à 2,43 TU.
Range H-beta
Cordialement Umberto
Range H-beta
Cordialement Umberto
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Re: Dramatic change of H alpha profile
Hi all,
CH Cyg profile with Alpy600 on 2015/06/17
Cheers,
CH Cyg profile with Alpy600 on 2015/06/17
Cheers,
--
Jacques Montier
Societe d'Astronomie de Rennes
IAU code J23
Jacques Montier
Societe d'Astronomie de Rennes
IAU code J23
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Re: Dramatic change of H alpha profile
Salut, je l'ai enregistré un nouvel effet de P-Cyg sur le H-bêta avec une observation dans la nuit du 17 et 18/06/2015 à partir de 22:55 heures à 00:07 heures TU, voici le film.
Cordialement Umberto
Cordialement Umberto
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Re: Dramatic change of H alpha profile
Fast changes in the spectrum of CH Cyg last night in just 1 hour?
Some animations of 12 spectra of 300s each with eshel spectrograph and RC400 astrosib.
Variation for H Alpha
Variation for H beta
Variation for HeI
Variation of some line on 45 order
Some animations of 12 spectra of 300s each with eshel spectrograph and RC400 astrosib.
Variation for H Alpha
Variation for H beta
Variation for HeI
Variation of some line on 45 order
LHIRES III #5, LISA, e-Shel, C14, RC400 Astrosib, AP1600
http://o.garde.free.fr/astro/Spectro1/Bienvenue.html
http://o.garde.free.fr/astro/Spectro1/Bienvenue.html
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Re: Dramatic change of H alpha profile
Molto buono lavoro, Umberto.
Très bon travail, Olivier.
Félicitations, Congratulazioni,
Joan.
Très bon travail, Olivier.
Félicitations, Congratulazioni,
Joan.
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Re: Dramatic change of H alpha profile
Excellent Olivier !
Tu est tombé sur le bon moment.
Je mets la base à jour cette semaine
Amicalement,
François
Tu est tombé sur le bon moment.
Je mets la base à jour cette semaine
Amicalement,
François
François Teyssier
http://www.astronomie-amateur.fr
http://www.astronomie-amateur.fr
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Re: Dramatic change of H alpha profile
Last night I took about 5 hours of spectra for CH Cyg (180s unit exposure) and a total of more than hundred spectra, but I haven't see any fast change, just some ondulation for the blue part of Halpha.
Olivier
Olivier
LHIRES III #5, LISA, e-Shel, C14, RC400 Astrosib, AP1600
http://o.garde.free.fr/astro/Spectro1/Bienvenue.html
http://o.garde.free.fr/astro/Spectro1/Bienvenue.html