Nova Sgr = PNV J18365700-2855420
-
- Posts: 1431
- Joined: Mon Sep 26, 2011 6:59 pm
- Contact:
Re: Nova Sgr = PNV J18365700-2855420
Near-IR spectrum of the nova (8.15/04/2015) taken with LISA IR spectrograph (R=950) and a 200 mm f/5 telescope:
(note Ca II triplet emission and more)
Christian
(note Ca II triplet emission and more)
Christian
-
- Posts: 1926
- Joined: Mon Sep 26, 2011 4:41 pm
- Contact:
Re: Nova Sgr = PNV J18365700-2855420
Josch Hambsch reports a big drop in Fe line intensity around 5200A from 6th to 8th April, (remote SA200 observation from Chile) coinciding with a rapid drop in brightness
http://www.aavso.org/bright-classical-nova-sagittarius
message "Spetrum from April 7/8 Posted: April 8, 2015 - 8:51pm"
Robin
http://www.aavso.org/bright-classical-nova-sagittarius
message "Spetrum from April 7/8 Posted: April 8, 2015 - 8:51pm"
Robin
LHIRES III #29 ATIK314 ALPY 600/200 ATIK428 Star Analyser 100/200 C11 EQ6
http://www.threehillsobservatory.co.uk
http://www.threehillsobservatory.co.uk
-
- Posts: 1431
- Joined: Mon Sep 26, 2011 6:59 pm
- Contact:
Re: Nova Sgr = PNV J18365700-2855420
eShel spectrum (R=11000) taken the 12.17 April. Global spectrum:
Detail around Halpha:
and blue region:
A close look of yellow Na lines with VHIRES MO spectrograph (R=50000) taken the same night (compare with 7 April observation):
also:
Christian
Detail around Halpha:
and blue region:
A close look of yellow Na lines with VHIRES MO spectrograph (R=50000) taken the same night (compare with 7 April observation):
also:
Christian
-
- Posts: 1520
- Joined: Fri Sep 23, 2011 1:01 pm
- Location: Rouen
- Contact:
Re: Nova Sgr = PNV J18365700-2855420
Nice spectra Christian !
Interesting and complexe absorptions in Balmer and Fe II lines
François
Interesting and complexe absorptions in Balmer and Fe II lines
François
François Teyssier
http://www.astronomie-amateur.fr
http://www.astronomie-amateur.fr
-
- Posts: 1243
- Joined: Thu Sep 29, 2011 6:35 am
- Location: Rhône Alpes FRANCE
- Contact:
Re: Nova Sgr = PNV J18365700-2855420
Here's a spectrum of this nova taken last night at OHP during the annual star party meeting of our club : CALA
Very bright but also very low in latitude...
LISA spectrograph with 35u slit on a C14 @ f/d7 and CCD ATIK 460EX
Very bright but also very low in latitude...
LISA spectrograph with 35u slit on a C14 @ f/d7 and CCD ATIK 460EX
LHIRES III #5, LISA, e-Shel, C14, RC400 Astrosib, AP1600
http://o.garde.free.fr/astro/Spectro1/Bienvenue.html
http://o.garde.free.fr/astro/Spectro1/Bienvenue.html
-
- Posts: 1431
- Joined: Mon Sep 26, 2011 6:59 pm
- Contact:
Re: Nova Sgr = PNV J18365700-2855420
Un nouveau spectre de la nova Sgr 2015 n°2 faite depuis Toulouse au même moment que toi j'ai l'impression Olivier G. (eShel + Newton 200). De la chance avec des nuits claires (maintenant c'est fini !) :
eShel spectrum taken the 14.141 April 2015:
The aspect of nova spectrum taken with Alpy 600 spectrograph at R=650 (up), with eShel spectrograph at R=11000 (middle) and with VHIRES-MO spectrograph ar R=50000 (down) (6 and 7 April 2015, 200-mm Newtonian telescope):
(note the difference of spectral range)
The same spectro, but for a detail (yellow Na sodium lines)
(note the sharpness of insterstellar Na lines function of resolution and also, the blue shift of 520 km/s of nova enveloppe Na lines)
Christian
eShel spectrum taken the 14.141 April 2015:
The aspect of nova spectrum taken with Alpy 600 spectrograph at R=650 (up), with eShel spectrograph at R=11000 (middle) and with VHIRES-MO spectrograph ar R=50000 (down) (6 and 7 April 2015, 200-mm Newtonian telescope):
(note the difference of spectral range)
The same spectro, but for a detail (yellow Na sodium lines)
(note the sharpness of insterstellar Na lines function of resolution and also, the blue shift of 520 km/s of nova enveloppe Na lines)
Christian
-
- Posts: 1243
- Joined: Thu Sep 29, 2011 6:35 am
- Location: Rhône Alpes FRANCE
- Contact:
Re: Nova Sgr = PNV J18365700-2855420
Evolution of the novae in 72H
LHIRES III #5, LISA, e-Shel, C14, RC400 Astrosib, AP1600
http://o.garde.free.fr/astro/Spectro1/Bienvenue.html
http://o.garde.free.fr/astro/Spectro1/Bienvenue.html
-
- Posts: 1431
- Joined: Mon Sep 26, 2011 6:59 pm
- Contact:
Re: Nova Sgr = PNV J18365700-2855420
In complement to Olivier data, detail of Halpha line evolution (and continuum intensity) between 14 en 18 April (eShel, R = 11000):
(the telluric lines are removed)
Condition of observations for the 18 April are note excellent - see
http://www.spectro-aras.com/forum/viewt ... 5130#p5130
Christian
(the telluric lines are removed)
Condition of observations for the 18 April are note excellent - see
http://www.spectro-aras.com/forum/viewt ... 5130#p5130
Christian
-
- Posts: 1431
- Joined: Mon Sep 26, 2011 6:59 pm
- Contact:
Re: Nova Sgr = PNV J18365700-2855420
HR spectrum (R=50000) of Halpha line the 24/04/2015 (note deep H2O telluric lines, the nova is at low elevation from France):
Christian
Christian
-
- Posts: 611
- Joined: Thu Nov 03, 2011 8:50 pm
Re: Nova Sgr = PNV J18365700-2855420
Hello:
The Nova Sgr #2 2015 in the last night.
Star of caparison, HD168646 A3III.
J.Guarro.
The Nova Sgr #2 2015 in the last night.
Star of caparison, HD168646 A3III.
J.Guarro.
- Attachments
-
- _novasgr#22015_20150428_146_J. Guarro.png (8.03 KiB) Viewed 7733 times