TCP J18292290-1430460 = Nova Sct 2018

Information about outbursts of eruptive stars, Be activity, ...

Re: TCP J18292290-1430460, mag 10 in Sct

Postby Olivier GARDE » Sun Jul 01, 2018 12:56 am

And quicky process, the graph of H Alpha velocity

Image

And Sodium lines
Image

I try to do more exposure to improve the SNR, (flux is very weak with an eShel)
LHIRES III #5, LISA, e-Shel, C14, RC400 Astrosib, AP1600
http://o.garde.free.fr/astro/Spectro1/Bienvenue.html
Olivier GARDE
 
Posts: 1049
Joined: Thu Sep 29, 2011 6:35 am
Location: Rhône Alpes FRANCE

Re: TCP J18292290-1430460, mag 10 in Sct

Postby Christian Buil » Sun Jul 01, 2018 2:22 am

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

Image

Christian Buil
Christian Buil
 
Posts: 1331
Joined: Mon Sep 26, 2011 6:59 pm

Re: TCP J18292290-1430460, mag 10 in Sct

Postby Paul Luckas » Sun Jul 01, 2018 2:26 am

Congratulations Olivier and Umberto. Nice work:

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

Paul
Paul Luckas
 
Posts: 99
Joined: Tue Jun 24, 2014 5:08 pm
Location: Perth, Western Australia

Re: TCP J18292290-1430460, mag 10 in Sct

Postby Joan Guarro Flo » Sun Jul 01, 2018 11:55 am

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.
Attachments
_tcpj18292290-1430460_20180630_941_JGFha.png
_tcpj18292290-1430460_20180630_941_JGFha.png (25.8 KiB) Viewed 5185 times
_tcpj18292290-1430460_20180630_941_JGFna.png
_tcpj18292290-1430460_20180630_941_JGFna.png (37.1 KiB) Viewed 5185 times
_tcpj18292290-1430460_20180630_941_JGFfull.png
_tcpj18292290-1430460_20180630_941_JGFfull.png (65.18 KiB) Viewed 5185 times
_tcpj18292290-1430460_20180630_941_JGFfe.png
_tcpj18292290-1430460_20180630_941_JGFfe.png (62.92 KiB) Viewed 5185 times
Joan Guarro Flo
 
Posts: 348
Joined: Thu Nov 03, 2011 8:50 pm

Re: TCP J18292290-1430460, mag 10 in Sct

Postby umberto sollecchia » Sun Jul 01, 2018 12:48 pm

Merci à tous et félicitations pour vos excellents profils.
Un merci spécial au professeur Steve Shore et à Francois Teyssier.
Umberto
umberto sollecchia
 
Posts: 219
Joined: Tue Dec 30, 2014 3:25 pm

Re: TCP J18292290-1430460, mag 10 in Sct

Postby David Boyd » Sun Jul 01, 2018 4:12 pm

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
Nova Sct 2018 photometry 30Jun2018.png (14.61 KiB) Viewed 5169 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.
Nova Sct 2018 20180630.974 D.Boyd.png
David Boyd
 
Posts: 119
Joined: Wed Dec 11, 2013 5:50 pm

Re: TCP J18292290-1430460, mag 10 in Sct

Postby David Boyd » Tue Jul 03, 2018 12:36 am

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.
novasct2018_20180702_935_D.Boyd.png
David Boyd
 
Posts: 119
Joined: Wed Dec 11, 2013 5:50 pm

Re: TCP J18292290-1430460, mag 10 in Sct

Postby Olivier GARDE » Tue Jul 03, 2018 8:10 am

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....
LHIRES III #5, LISA, e-Shel, C14, RC400 Astrosib, AP1600
http://o.garde.free.fr/astro/Spectro1/Bienvenue.html
Olivier GARDE
 
Posts: 1049
Joined: Thu Sep 29, 2011 6:35 am
Location: Rhône Alpes FRANCE

Re: TCP J18292290-1430460, mag 10 in Sct

Postby Paolo Berardi » Tue Jul 03, 2018 2:59 pm

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.

Image

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.

Image

Paolo
Paolo Berardi
 
Posts: 542
Joined: Thu Sep 29, 2011 10:51 pm

Re: TCP J18292290-1430460, mag 10 in Sct

Postby James Foster » Tue Jul 03, 2018 8:29 pm

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
James Foster
Lhires III (2400/1800/600 ln/mm Grat) Spectroscope,
LISA IR/Visual Spectroscope (IR Configured Presently)
Alpy 600 with Guide/Calibration modules and Photometric slit
Star Analyzer 200
James Foster
 
Posts: 378
Joined: Sun Jan 24, 2016 7:14 am

PreviousNext

Return to Outbursts and alerts

Who is online

Users browsing this forum: No registered users and 5 guests

x