TCP J17562787-1714548

[umberto sollecchia]

https://www.astronomerstelegram.org/?read=15910

Hi all, I post the spectral profile of the transient in question.
Umberto

tcpj17562787-171454820230219,8234_20230221_127_Umberto Sollecchia.png (42.87 KiB) Viewed 11073 times

2D.jpg (34.21 KiB) Viewed 11242 times

[Hamish Barker]

was this taken on Feb 18.759? Wow, this is definitely the first spectrum! Such a huge change to today's spectra!

[umberto sollecchia]

Forgive me Hamish, I was wrong to attach the file. Now that's right.
Umberto

[Hamish Barker]

the spectrum looks great. I hope you are able to collect some more. with the northern and southern observers all able to observe it, it might be possible for us collectively to collect a good time series to study the evolution of this quite fast nova.

[Joan Guarro Flo]

Chiao Umberto,

Nice observation !! You're one of the few people who shows your results here, so it seems that all has stopped.
Congratulations !! I hope that it encourages people to observe and expose their outcomes here again.

Un forte abbraccio, Joan.

[Peter Velez]

I've been following this nova this week. It rises quite late in the morning so I have limited time to collect data. Its also fading quite rapidly so the SNR is falling away as well.

The best quality spectrum I have is for 23 February 2023. I've marked the most prominent lines. Resolution is around 1200. Taken with a UVEX mounted on a Planewave CDK 12.5. I'm surprised at the strength of the He II line - perhaps I have misidentified it so corrections and comments are welcome.

Also attached are spectra taken on 3 consecutive days.

I have some NIR data from 22 February 2023 but I have no reference star spectrum to apply to it and I'm not confident with the result using another IR curve. If I manage to process it with SpecInti I'll post that too.

Pete

[2SPOT]

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