TCP J18292290-1430460 = Nova Sct 2018

[Olivier GARDE]

And quicky process, the graph of H Alpha velocity



And Sodium lines


I try to do more exposure to improve the SNR, (flux is very weak with an eShel)

[Christian Buil]

The Sct nova the 30/06/2018 from Toulouse (LISA spectrograph, R=850 + RC 10 inch):



Christian Buil

[Paul Luckas]

Congratulations Olivier and Umberto. Nice work:

http://www.astronomerstelegram.org/?read=11802

Paul

[Joan Guarro Flo]

Congratulations to all, good work and speed!

For my part, last night, I had half the Sahara above me, (suspended pulse), but if you observe, something always comes up ....

In my graphics I have passed the filter, which has the ISIS, in value of 4 .. Attached the same regions that Olivier has also sent.

Graphics are cleaner, the question is. In which I have altered the results?
This is a good practice?

Regards, Joan.

[umberto sollecchia]

Merci à tous et félicitations pour vos excellents profils.
Un merci spécial au professeur Steve Shore et à Francois Teyssier.
Umberto

[David Boyd]

The following transformed B and V band photometry of Nova Sct 2018 was recorded with a 0.35m SCT between 22.44 and 00.29 UT on 30 June/1 July.

Nova Sct 2018 photometry 30Jun2018.png (14.61 KiB) Viewed 19112 times

Spectra were taken concurrently with a C11 + LISA between 23.25 UT and 00.25 UT. R=1064. A mean V mag of 10.63 was adopted to flux calibrate the spectrum. As the average altitude of the nova was only 22 deg, atmospheric correction may be suspect.

[David Boyd]

Large change in the spectrum of the nova since 2 days ago. H-alpha emission has grown and other Balmer lines now appear in emission while P-Cygni type absorption dips have almost disappeared. The continuum is now almost flat.

[Olivier GARDE]

Last publications about the nova :
1) UAI CBET #4530

2) AAVSO # 638
https://www.aavso.org/aavso-alert-notice-638

For me no more spectra at this time....

[Paolo Berardi]

Thank you Olivier. Very nice spectra and observations of you all.

Yesterday I observed the nova with Lhires III 1200, H-alpha region. The line has changed a lot.



Maybe there are two blueshifted absorption lines in the p-cygni profile (velocities ~ -700 and -1700 Km/s to rest wavelength)? Here I tried to remove the telluric lines.



Paolo

[James Foster]

Will shoot this every night while at Pinos (6-15Jul18) with LISA and maybe two nights with LhiresIII. Are there any other
portions (besides Ha, Na) regions to shoot this high resolution (1800 ln/mm grating)? I heard Steve Shore is interested
in the 4800-5300A range.

James