Is this a super nova?

[Chuck Wigon]

Hi! I saw this on the a JWST deep field image and was wondering if this is a super nova or some other type something lol.

[CraigT82]

Certainly looks like it could be, though I’m not sure if the light from the nova should be the same redshift as it’s galaxy? 

[mdstuart]

I saw that chuck. Apparently there is a supernova in the jwst image but it's not that blob. It was found by comparing the image with an earlier hubble image.

Mark

[robin_astro]

It could be anything eg a foreground object.  First step would be to compare it with archive images though it might be tough to find ones deep enough.  Is there a fits version of the image with coordinates (WCS) so we know where exactly it is ?

This is the possible supernova they claim to have found comparing with archival Hubble images

https://www.wis-tns.org/object/2022owj

https://www.wis-tns.org/astronotes/astronote/2022-145

but at mag 25 in the IR it is unlikely anyone will get a spectrum to confirm it

Cheers

Robin

Edited July 24, 2022 by robin_astro
added link to TNS AstroNote

[robin_astro]

There is also a 9 year old supernova SN2013ej still visible in the JWST image of M74 

https://www.wis-tns.org/object/2013ej

https://www.wis-tns.org/astronotes/astronote/2022-147

Robin

Edited July 24, 2022 by robin_astro