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Re: Supernova in NGC 1365
Posted: Tue Nov 06, 2012 11:22 pm
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
Re: Supernova in NGC 1365
Posted: Wed Nov 07, 2012 5:02 pm
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:
(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
Re: Supernova in NGC 1365
Posted: Sun Nov 11, 2012 11:28 am
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
Re: Supernova in NGC 1365
Posted: Tue Nov 13, 2012 1:44 am
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
Re: Supernova in NGC 1365
Posted: Thu Nov 15, 2012 1:37 am
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
Re: Supernova in NGC 1365
Posted: Thu Nov 15, 2012 5:01 pm
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
Re: Supernova in NGC 1365
Posted: Fri Nov 16, 2012 11:09 am
by Terry Bohlsen
More from me as well.
This is from 15th. Nov
Terry
- _sn2012fr_20121115_450_TBohlsen.png (6.7 KiB) Viewed 7687 times
Re: Supernova in NGC 1365
Posted: Fri Nov 16, 2012 2:35 pm
by Christian Buil
Terry, I have observed at nearly the same time from France (Nov 15.9). Here a comparison of the two spectra:
Note the very high similarity
The ARAS page is updated
Christian
Re: Supernova in NGC 1365
Posted: Mon Nov 19, 2012 3:44 am
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 (6.62 KiB) Viewed 7654 times
Re: Supernova in NGC 1365
Posted: Mon Nov 19, 2012 11:33 am
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 (6.79 KiB) Viewed 7651 times