SN 2020uxz in NGC514

SN 2020uxz in NGC514

Postby Robin Leadbeater » Sat Oct 17, 2020 11:32 am

Currently mag 13.8 and approaching maximum

SN2020uxz_guider_20201015.png
SN2020uxz_guider_20201015.png (131.46 KiB) Viewed 1899 times


ALPY 600 8x600s (black) overlaid on best fit from SNID (red)

_sn2020uxz_20201015_892_leadbeater_SNID.png
_sn2020uxz_20201015_892_leadbeater_SNID.png (53.81 KiB) Viewed 1899 times


Spectrum in BAA database
https://britastro.org/specdb/
https://britastro.org/specdb/data_graph.php?obs_id=8020


Cheers
Robin
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Re: SN 2020uxz in NGC514

Postby Hamish Barker » Sun Oct 18, 2020 9:40 pm

Very nice result especially at M 13.8 ! What size telescope was used Robin?

Cheers,
Hamish
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Re: SN 2020uxz in NGC514

Postby Frederic Pastor » Mon Oct 19, 2020 10:37 am

Hi All, Hi Robin,

After a second try, I could obtain enough signal yesterday evening. Here is below my contribution:

SN2020 uxz Fred Pastor Rspec.jpg
Sn2020 uxz under Rspec - 7 x 600 sec - 18 oct 2020
SN2020 uxz Fred Pastor Rspec.jpg (80.46 KiB) Viewed 1836 times


My continuum is rather flat, especially in the Blue. Can't explain if this is because of the star in explosion or a bad instrumental response obtained. That being said, Gelato has correctly matched with a type Ia also proposed :

gelatoplot (3).png
Gelato - matching with 2006gz
gelatoplot (3).png (62.17 KiB) Viewed 1836 times


This Sn is still exiting to follow in the days to come, not far away from Mars at the moment in the sky. Here is a picture of my guiding camera below :

image guidage SN2020uxz.jpg
guiding cam


Cheers,

Fred
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Re: SN 2020uxz in NGC514

Postby Robin Leadbeater » Mon Oct 19, 2020 6:02 pm

Hamish Barker wrote:Very nice result especially at M 13.8 ! What size telescope was used Robin?


Hi Hamish

280mm (The Celestron C11 at f5.5). This magnitude is ok for me with the ALPY 600. Even the individual 10min spectra show the main features

sn2020uxz_20201015_892_Leadbeater.png
sn2020uxz_20201015_892_Leadbeater.png (141.09 KiB) Viewed 1808 times


I can get to ~mag 15.5 with the standard ALPY, though at reduced SNR and mag 16-5-17 with my modified ALPY 200 at R~130 eg for faint supernovae classification

Cheers
Robin
LHIRES III #29 ATIK314 ALPY 600/200 ATIK428 Star Analyser 100/200 C11 EQ6
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Re: SN 2020uxz in NGC514

Postby Robin Leadbeater » Thu Nov 05, 2020 3:11 pm

A spectrum from 20201103, approximately 12 days post maximum. Significant evolution since pre maximum
https://britastro.org/specdb/data_graph ... end_pos=ne
but still a good match to a typical type Ia

_sn2020uxz_20201103_955_snidfit.png
_sn2020uxz_20201103_955_snidfit.png (76.66 KiB) Viewed 1666 times


Cheers
Robin
LHIRES III #29 ATIK314 ALPY 600/200 ATIK428 Star Analyser 100/200 C11 EQ6
http://www.threehillsobservatory.co.uk
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Re: SN 2020uxz in NGC514

Postby Frederic Pastor » Mon Nov 09, 2020 2:13 pm

Hi All,

After its 34th days post explosion, and 17th days post maximum; spectrum of SN2020uxz taken yesterday evening :

RSPEC SN2020uxz 09 11 2020.jpg
SN2020uxz Spectrum taken 8th Nov 2020
RSPEC SN2020uxz 09 11 2020.jpg (76.08 KiB) Viewed 1568 times


Magnitude estimated from 14 to 15, here is below a pic of my guiding camera :

export jpeg SN2020uxz.jpg
guiding image
export jpeg SN2020uxz.jpg (556.04 KiB) Viewed 1568 times


It also match corectly in GELATO with the SN2003du, in its 19th post max:

gelatoplot SN2020uxy 2003du.png
gelato matching
gelatoplot SN2020uxy 2003du.png (61.05 KiB) Viewed 1568 times


Cheers

Fred
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Re: SN 2020uxz in NGC514

Postby etienne bertrand » Mon Nov 09, 2020 2:46 pm

Jolie résultat !!
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Re: SN 2020uxz in NGC514

Postby Daniel Dejean » Tue Nov 10, 2020 6:21 pm

Nice result Frederic , according to LCG the magnitude is now around 14.4 ... not a bad performance with a modest Newton skywatcher 250mm. :) .
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Re: SN 2020uxz in NGC514

Postby Olivier GARDE » Tue Nov 10, 2020 6:35 pm

Il faudrait nous préciser avec quel spectro tu as fait le spectre, le temps de pose, la caméra, etc...
Sinon, on a pas de moyen de comparer tel ou tel résultat. ;)
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Re: SN 2020uxz in NGC514

Postby etienne bertrand » Wed Nov 11, 2020 1:51 pm

Comme Olivier,
Il faut bien renseigner les champs, surtout quand il y a de bons résultats, ça fait pro !
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