supernova SN 2023ixf in M101 !

[Robin Leadbeater]

A type II supernovae SN2023ixf has been discovered tonight in M101 at mag 14.9
https://www.wis-tns.org/object/2023ixf

[Olivier GARDE]

yes a very good target but the weather at home is really not good....

[Robin Leadbeater]

It is now mag 12 and still rising. No amateur spectra yet? I am surprised. (Only clouds for me since discovery)

Robin

[Robin Leadbeater]

Mike Harlow has posted an objective prism spectrum on his BAA page
https://britastro.org/observations/obse ... p?id=70986

Cheers
Robin

[E Soubrouillard]

Hello Robin
nice target. Waiting for better weather condition.
Emmanuel

[Robin Leadbeater]

A low resolution (ALPY600) spectrum last night (poor conditions, high cloud, twilight

20230521_sn2023ixf_guider.png (229.3 KiB) Viewed 251321 times

gives a good SNID match to SN 1998S (type IIn)

sn2023ixf_20230521_SNIDfit.png (62.58 KiB) Viewed 251321 times

downloadable from the BAA database

https://britastro.org/specdb/data_graph ... s_id=13774

It could be bright enough now for high resolution spectroscopy from a good observing site

Cheers
Robin

[Olivier GARDE]

Too many clouds for me in France.....

[Robin Leadbeater]

An animation showing the evolution over the past week. (The temperature is dropping and the flash ionisation phase He lines have gone)

SN2023ixf_animation_20230521-0527.gif (347.52 KiB) Viewed 251074 times

Cheers
Robin

[Robin Leadbeater]

Catching up with some more animations (I am still following it but at lower resolution with the ALPY200 now it is ~mag 16.5)

SN2023ixf_animation_20230527-0613.gif (544.03 KiB) Viewed 249959 times

SN2023ixf_animation_20230613-0720.gif (235.29 KiB) Viewed 249959 times

This one is in both absolute and relative flux

interp_interpflux_combined.gif (387.91 KiB) Viewed 249959 times

Robin

[Robin Leadbeater]

Now a year old so here is a spectrum in the nebula phase at V mag ~18 (tough in moonlight and the twilight skies here at this time of year)

SN2023ixf_20240518_poster.png (370.37 KiB) Viewed 21720 times

Here is the animation from September 2023 - February 2024 showing it moving into the nebular phase

20240215_143932_2cb43a334f03.gif (198.31 KiB) Viewed 21720 times

Cheers
Robin