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Reload this Page Possible nova in Centaurus, PNV J13544700-​5909080, 03 Dec 2013
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  #361  
Old 19-03-2014, 11:11 PM
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Merlin66 (Ken)
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Rob,
Thanks!
AA5 and the Lodestar seem to be working well together....
The bright moon doesn't help much!!
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  #362  
Old 20-03-2014, 12:20 AM
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The continuum is certainly fading....
I'm having to run 4800 sec for the Na region to get a half decent SNR....
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  #363  
Old 20-03-2014, 08:45 AM
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Ha region from last night....
Still some absorption features
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  #364  
Old 23-03-2014, 08:32 PM
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Data from last night 22/3
It is slightly brighter in V again. Now V= 7.511
The Ha contribution has fallen though.
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  #365  
Old 24-03-2014, 03:58 AM
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Interesting behaviour. Since March 5, R has stayed virtually constant, I has faded 0.2, while V has brightened 0.5 and B slightly more.
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  #366  
Old 01-04-2014, 02:13 AM
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I'm clouded out down here....
Anyone getting data on the nova??
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  #367  
Old 01-04-2014, 08:48 PM
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I had a problem with the observatory laptop and lost some data before I could backup.....
The attached image shows the dramatic rise of the Ha emission in Nova Cen during the month.
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  #368  
Old 05-04-2014, 10:49 PM
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OK, finally clear weather and opportunity comes together...
Collecting some Ha data, and hopefully will move onto NII and Hb.....
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  #369  
Old 07-04-2014, 08:30 PM
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The attached images show to significant drop in the Fe and the growth of the NII/[OIII] as well as the continued Ha activity.
It seems to change in a few days......
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Click for full-size image (NovaCen_Ha_050414.png)
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Click for full-size image (NovaCen_NII..png)
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  #370  
Old 07-04-2014, 08:34 PM
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Wow! Where has the Fe gone?

A month of cloud here.
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  #371  
Old 08-04-2014, 07:24 AM
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Yeah, some dramatic changes there....
Looks like the "Iron Curtain" has finally cleared and we're moving towards the nebula phase.....
Who says astronomy is boring!
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  #372  
Old 09-04-2014, 08:51 AM
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Any other comparison spectra available????
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  #373  
Old 09-04-2014, 09:07 AM
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Quote:
Originally Posted by Merlin66 View Post
Any other comparison spectra available????
Ive taken spectra over the last 2 nights but haven't uploaded them yet. I have uploaded spectra from 30/3 and 3/4 to http://www.astrosurf.com/aras/Aras_D...a-Cen-2013.htm

I will process them tonight hopefully.
Terry
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  #374  
Old 09-04-2014, 09:19 AM
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Interesting...
Your 3/4 spectrum seems to show very strong FeII emission at 4352A as well as the increasing NII/[OIII]

Clouded out down here for the next few days by the look of it.....
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  #375  
Old 11-04-2014, 10:43 PM
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There hasn't been much change in the spectra over the last few weeks. The magnitude has fluctuated a bit(see graph)
The spectra from 8th April is compared to 22nd March.
Terry
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  #376  
Old 14-04-2014, 06:11 PM
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One of the things I'm finding interesting about this one is the way the I is dropping steadily even while BVR rebrighten. Anyone got an explanation?
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  #377  
Old 16-04-2014, 09:08 AM
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Could be the loss of the "iron curtain" and the change in the energy levels...
Or just that the Ha continues to grow!!
First results from last night - shows the consistent absorptions in the Ha and the increased strength....
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  #378  
Old 21-04-2014, 10:11 AM
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Here's the Hb Region from the 15th.
Hmmmm
I think the [OIII] at 4959 and 5007 are beginning to develop.
The others could be NII (5001), NIII (4638) and HeII (4686)

Every spectrum seems to show more and more features......
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  #379  
Old 21-04-2014, 05:17 PM
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I took spectra last Thursday but am away for a week so can't upload them. Good to see your data.
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  #380  
Old 21-04-2014, 11:51 PM
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Quote:
Originally Posted by Merlin66 View Post
Here's the Hb Region from the 15th.
Hmmmm
I think the [OIII] at 4959 and 5007 are beginning to develop.
The others could be NII (5001), NIII (4638) and HeII (4686)

Every spectrum seems to show more and more features......
Nice work Ken! Sorry I missed you at NACAA, I didn't get there till Saturday morning. Would have loved to have met you and had a chat.

Cheers -
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