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Re: TCP J18292290-1430460, mag 10 in Sct
Posted: Sun Jul 01, 2018 12:56 am
by 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)
Re: TCP J18292290-1430460, mag 10 in Sct
Posted: Sun Jul 01, 2018 2:22 am
by Christian Buil
The Sct nova the 30/06/2018 from Toulouse (LISA spectrograph, R=850 + RC 10 inch):
Christian Buil
Re: TCP J18292290-1430460, mag 10 in Sct
Posted: Sun Jul 01, 2018 2:26 am
by Paul Luckas
Congratulations Olivier and Umberto. Nice work:
http://www.astronomerstelegram.org/?read=11802
Paul
Re: TCP J18292290-1430460, mag 10 in Sct
Posted: Sun Jul 01, 2018 11:55 am
by 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.
Re: TCP J18292290-1430460, mag 10 in Sct
Posted: Sun Jul 01, 2018 12:48 pm
by umberto sollecchia
Merci à tous et félicitations pour vos excellents profils.
Un merci spécial au professeur Steve Shore et à Francois Teyssier.
Umberto
Re: TCP J18292290-1430460, mag 10 in Sct
Posted: Sun Jul 01, 2018 4:12 pm
by 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 14352 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.
Re: TCP J18292290-1430460, mag 10 in Sct
Posted: Tue Jul 03, 2018 12:36 am
by 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.
Re: TCP J18292290-1430460, mag 10 in Sct
Posted: Tue Jul 03, 2018 8:10 am
by 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....
Re: TCP J18292290-1430460, mag 10 in Sct
Posted: Tue Jul 03, 2018 2:59 pm
by 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
Re: TCP J18292290-1430460, mag 10 in Sct
Posted: Tue Jul 03, 2018 8:29 pm
by 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