Supernova in NGC 1365

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Christian Buil
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Re: Supernova in NGC 1365

Post by Christian Buil »

Thanks Terry!

A special page concerning sn2012fr is now open in ARAS site:

http://www.astrosurf.com/aras/surveys/s ... fr/obs.htm

(Bernard, remenber to send your important SN spectra - actual and future!)

Christian B
Christian Buil
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Re: Supernova in NGC 1365

Post by Christian Buil »

The SN2012fr page is updated with Robin H. observation (Oct. 29):

http://www.astrosurf.com/aras/surveys/s ... fr/obs.htm

and also my very latest observation from France (moon light is less agressive and
the sn magnitude is now more favorable) - last night:

Image

(Celestron 9 + LISA (35 microns slit) + Atik460EX CCD camera + one hour exposure)

The profile aspect change quickly (compare with Terry Nov. 4 observation).

Christian B
Bernard Heathcote
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Joined: Mon Sep 26, 2011 10:09 am

Re: Supernova in NGC 1365

Post by Bernard Heathcote »

Last night, 10 November, was my first chance to get a follow-up spectra of this SN, which apparently is close to its peak. The Type 1a profile is now very clearly defined ... GELATO gives a 100% match.

Cheers, Bernard
Attachments
sn2012fr_20121110_458_bheathcote.png
sn2012fr_20121110_458_bheathcote.png (5.73 KiB) Viewed 7623 times
Christian Buil
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Re: Supernova in NGC 1365

Post by Christian Buil »

Bernard, your latest high signal to noise ratio spectrum is now added to the global compilation:

http://www.astrosurf.com/aras/surveys/s ... fr/obs.htm

Christian B
Bernard Heathcote
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Joined: Mon Sep 26, 2011 10:09 am

Re: Supernova in NGC 1365

Post by Bernard Heathcote »

This Type Ia SN continues to evolve, with increasingly stronger MgII, FeII,SII and SiII absorption, as seen in my 13 Nov spectra. Note that I've shifted my coverage towards the red.

Cheers, Bernard
Attachments
SN2012fr  13 Nov 2012 B. Heathcote.jpg
SN2012fr 13 Nov 2012 B. Heathcote.jpg (69.08 KiB) Viewed 7609 times
Christian Buil
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Re: Supernova in NGC 1365

Post by Christian Buil »

Fine Bernard !
The SN spectrum aspect change now very quicky.

Your spectrum is added in the database, and also an excellent LISA spectrum
from Terry (Nov. 1146):

http://www.astrosurf.com/aras/surveys/s ... fr/obs.htm

Christian B
Terry Bohlsen
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Joined: Thu Sep 29, 2011 7:40 am

Re: Supernova in NGC 1365

Post by Terry Bohlsen »

More from me as well. :D
This is from 15th. Nov

Terry
_sn2012fr_20121115_450_TBohlsen.png
_sn2012fr_20121115_450_TBohlsen.png (6.7 KiB) Viewed 7564 times
Terry Bohlsen
Armidale NSW
Australia
Christian Buil
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Re: Supernova in NGC 1365

Post by Christian Buil »

Terry, I have observed at nearly the same time from France (Nov 15.9). Here a comparison of the two spectra:

Image

Note the very high similarity :)

The ARAS page is updated

Christian
Bernard Heathcote
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Joined: Mon Sep 26, 2011 10:09 am

Re: Supernova in NGC 1365

Post by Bernard Heathcote »

My update from last night (18 November) of this bright NGC1365 supernova:

Cheers, Bernard
SN2012fr- 18.487 Nov 2012 - B Heathcote.png
SN2012fr- 18.487 Nov 2012 - B Heathcote.png (6.62 KiB) Viewed 7531 times
Terry Bohlsen
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Re: Supernova in NGC 1365

Post by Terry Bohlsen »

I also took a spectra last night. There was no wind to make guiding difficult for the first time since I have taken images of this star. The result was a better SN.
Terry
_sn2012fr_20121118_440.png
_sn2012fr_20121118_440.png (6.79 KiB) Viewed 7528 times
Terry Bohlsen
Armidale NSW
Australia
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