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VV Cephei news

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jack martin's picture
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Last seen: 2 days 8 hours ago
Joined: 20/01/2017 - 12:41
VV Cephei news

So, here is my latest spectrum of VV Cephei, not showing much change in the blue wing of the H alpha emission line yet !

The eclipse begins early August and I am continuing to monitor it.

My tally so far is 84 nights of data since 2015-08-26, which I am now close to reducing and hope to post results in due course.

Regards to all,

Jack

Essex UK

Anthony Rodda's picture
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Joined: 01/09/2014 - 14:15
VV Cep obs.

Hi guys,

I've been following the thread with interest so when the first clear (dark!) night, for what seems like several decades, occurred on Wednesday I couldn't resist a shot at VV Cep.  Fascinating object.

Too low resolution to be of any scientific interest but this was 'first light' after a summer of faffing about - and I'd fitted a photometric slit to my Aply which I was fine tuning.  (n.b. 23 um narrow slit used for this obs).

Regards

Tony

allenhugh10's picture
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Joined: 02/08/2016 - 22:43
VV Cep evolution at low resolution

Hi Tony,

That's a great looking spectrum. Would you upload it to the database? There are not many low resolution spectra on there -  I attach the last one that I uploaded from 5th July. I agree that the most interesting science will come from high resolution spectra but I'm sure there's a lot to be learnt from our low resolution Alpy spectra. Apart from the general evolution of the intensity of the hydrogen Balmer emission (I estimated the Equivalent Width EW of the H alpha emission from the baseline spectra that I've captured over the last year) I think it will be very interesting to see how the spectrum evolves down at the blue end - how visible is the spectrum of the Be star down at those wavelengths, I've read contradictory remarks on that. Anyway, it was great to see your result, let's hope we get some clear skies soon!

Cheers

Hugh