V694 Mon revisted

Show your spectra, your results ...

Re: V694 Mon revisted

Postby James Foster » Sat Mar 10, 2018 1:17 pm

Here are some more LhiresIII spectra of V0694 Mon done before inclement weather set in (used HD071155 at instrument calibration reference star):
Ha region:
Image
Hb region:
Image
There were quiet a few emission line around the emission spike of the H-Beta line; I could only identify the FeII line around 4923.92A.
Just a few more weeks before this goes too far west and too low for high quality spectrum.

James
James R. Foster
Lhires III (2400 & 1800 ln/mm Grat) Spectroscope,
LISA Visual & IR Kit Spectroscope,
Alpy 600, and Star Analyzer 200
James Foster
 
Posts: 242
Joined: Sun Jan 24, 2016 7:14 am

Re: V694 Mon revisted

Postby umberto sollecchia » Sun Mar 11, 2018 5:45 pm

Bonjour à tous, placez le profil de l'observation du 09-03-2018. Umberto

v694mon_20180309_795_Umberto Sollecchia.png
v694mon_20180309_795_Umberto Sollecchia.png (21.47 KiB) Viewed 504 times
umberto sollecchia
 
Posts: 197
Joined: Tue Dec 30, 2014 3:25 pm

Re: V694 Mon revisted

Postby James Foster » Wed Mar 21, 2018 9:04 am

Another spectra between Southern California rain storms....V0694 Mon around CaK:
Image
There has been a decrease in the H-zeta & CaK line activity as compared with the 08Feb18 spectra. Of course, since this band
is susceptible to poor atmospherics, it might be that these lines suffered from UV absorbing aerosols and/or low altitude observation.

James
James R. Foster
Lhires III (2400 & 1800 ln/mm Grat) Spectroscope,
LISA Visual & IR Kit Spectroscope,
Alpy 600, and Star Analyzer 200
James Foster
 
Posts: 242
Joined: Sun Jan 24, 2016 7:14 am

Re: V694 Mon revisted

Postby Peter Somogyi » Sun Sep 09, 2018 12:21 pm

Hello,

Opening the new season for v694 Mon: a fresh, lucky 1x10 minuter at the lowest level I can shoot v694 Mon from this morning - the P-Cyg profile has mostly vanished (a very rare state), uncovering a blue wing:
v694mon_20180909_139.gif
Fresh 1 x 10 minuter
v694mon_20180909_139.gif (14.71 KiB) Viewed 127 times

Had to wait like 30 minute to rise above a tree, and had to move the next 10-minuter to trash because of too much sunlight contamination and poor guiding against rising sun.
The two wings confirmable visually on the raw image, and the removed background is a bit contaminated by the Sun's H-beta absorption (that is narrower than the wings).
I'd appreciate if somebody could confirm the existence of the blue wing, as once I've had hard times to prove such a validity for a professional.

- Peter
Peter Somogyi
 
Posts: 331
Joined: Sun Jul 13, 2014 8:56 am

Re: V694 Mon revisted

Postby Francois Teyssier » Mon Sep 10, 2018 1:13 pm

Interesting, Peter
You've an the blue end of the line in faint emission
The last spectrum obtained by Umberto shows a very weak blue absorption
See
http://www.astrosurf.com/aras/novae/InformationLetter/ARAS_EruptiveStars_2018-02.pdf
All the best

François
Francois Teyssier
 
Posts: 1160
Joined: Fri Sep 23, 2011 1:01 pm
Location: Rouen

Previous

Return to Spectra, results, information on activity ...

Who is online

Users browsing this forum: No registered users and 0 guests

x