Thu, 11/16/2023 - 02:32
Hello I have gathered low res (1000) spectroscopy of the transient AT2023txn gaia23cse in Cygnus. How do I submit this since the target is unkown in the databases?
https://www.wis-tns.org/object/2023txn
Thanks
Keith
Hi Keith,
always do coordinate searches to check if an object is in VSX. Some objects may be in VSX under a different name.
In this case, the variable was already in VSX, since it was discovered by ZTF in 2020.
It is ZTF J195033.33+302822.4.
Now it has undergone what seems to be a symbotic nova outburst so it has caught the attention of the community.
It didn't have an AUID so I have assigned one and revised the object's information to show the most up-to-date results.
You can submit your spectra now.
Best wishes,
Sebastian
A discussion between Prof Steve Shore and Francois Teyssier on the ARAS cataclysmics spectroscopy group has concluded that based on the spectra, this is not a nova but probably a Be star
https://groups.io/g/spectro-l/topic/astronomicalspectroscopy/102615549
https://groups.io/g/spectro-l/topic/at2023txn_gaia23cse/102563186
Robin
I had a look at the GAIA3 spectrum for this star using VizieR. The only part of the spectrum that shows up is redward of H-alpha, which shows strong TiO and other molecular bands of an M6III. Together with the presence of a Be-type component, the symbiotic eruption idea seems likely.
\Brian
Sebastian thanks for that reference! I tried Simbad and just did not find that previous target info. Will submit now, thanks!!
Regards
Keith