Tartou 2016 VV Cep au Lhires 2400

VV Cep 2017-2019 Campaign
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JJ Broussat
Posts: 70
Joined: Fri Aug 17, 2012 2:59 pm

Tartou 2016 VV Cep au Lhires 2400

Post by JJ Broussat »

Bonjour,
Voici un spectre de VV Cep fait cette nuit
VV_Cep.png
VV_Cep.png (5.59 KiB) Viewed 7031 times

Les remarques sont les bienvenues.
Cordialement
Jean-Jacques
Ernst Pollmann
Posts: 461
Joined: Mon Sep 26, 2011 7:16 pm

Re: Tartou 2016 VV Cep au Lhires 2400

Post by Ernst Pollmann »

Jean-Jacques,
when do you upload this spectrum at the ARAS database?
I am interested in it!

Ernst
JJ Broussat
Posts: 70
Joined: Fri Aug 17, 2012 2:59 pm

Re: Tartou 2016 VV Cep au Lhires 2400

Post by JJ Broussat »

Hello Ernst,
Here is the file
Best regards
Jean-Jacques
_vv_cep_20160927_998_JJ Broussat.zip
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James Foster
Posts: 439
Joined: Sun Jan 24, 2016 7:14 am

Re: Tartou 2016 VV Cep au Lhires 2400

Post by James Foster »

See revised post below of 01-Oct-2016
observations of VV Cep in CaK, HB, and HA regions.

James Foster
Los Angeles, CA
Last edited by James Foster on Wed Oct 05, 2016 10:52 am, edited 1 time in total.
James Foster
eShel2-Zwo ASI6200MM Pro
Lhires III (2400/1800/600 ln/mm Grat) Spectroscope
LISA IR/Visual Spectroscope (IR Configured)
Alpy 200/600 with Guide/Calibration modules and Photometric slit
Star Analyzer 200
Olivier Thizy
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Joined: Sat Sep 24, 2011 10:52 am
Location: in the french Alps...
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Re: Tartou 2016 VV Cep au Lhires 2400

Post by Olivier Thizy »

James,


would you mind emailing (thizy@free.fr) me your spectra in FITS/BeSS file format so I can add it on ARAS database?

dB: http://www.astrosurf.com/aras/Aras_Data ... /VVCep.htm


Cordialement,
Olivier Thizy
Ernst Pollmann
Posts: 461
Joined: Mon Sep 26, 2011 7:16 pm

Re: Tartou 2016 VV Cep au Lhires 2400

Post by Ernst Pollmann »

Jean-Jacque,
here comes the Halpha EW and Halpha V/R evaluation.
vvcep_EW.jpg
vvcep_EW.jpg (78.71 KiB) Viewed 6924 times
vvcep_VtoR.jpg
vvcep_VtoR.jpg (82.57 KiB) Viewed 6924 times
Ernst
JJ Broussat
Posts: 70
Joined: Fri Aug 17, 2012 2:59 pm

Re: Tartou 2016 VV Cep au Lhires 2400

Post by JJ Broussat »

Ernst,
Thanks
Jean-Jacques
James Foster
Posts: 439
Joined: Sun Jan 24, 2016 7:14 am

Re: Tartou 2016 VV Cep au Lhires 2400

Post by James Foster »

Here is my spectra for VV Cep taken from Mt. Pinos, California (2500 meters elevation) on
01 October 2016, y-scale normalized to 1:

Center near CaK (7x420seconds summed):
Image
Center near H-Beta line (7x300 seconds summed):
Image
Center near H-Alpha line(7x180 seconds summed):
Image

Spectra were dark/bias calibrated. These exposures were summed in MaximDL, hot-pixel eliminated,
and had a manually generated flat field applied.

These spectrum were further processed in Bass project software 1.94 by being rotated & slant corrected,
above, below subtracted and active (continuum) selected, calibrated with a Ne-Ar reference image taken
right before and after exposure, and instrument response corrected using Vega on the same night.
I normalized the y-axis to a value near 1. Interestingly, this makes my H-Alpha scaled peak of
5 match Tartou/JJ Broussa original post almost perfectly!

Shot with a 33 Cm. aperture classical cassegrain telescope using an Atik 460ex CCD and
a L-200 spectroscope with a 1800 l/mm grating from 2500 meters elevation.
I have another VV Cep batch to process for 02-Oct-2016.

James Foster
Los Angeles, CA
James Foster
eShel2-Zwo ASI6200MM Pro
Lhires III (2400/1800/600 ln/mm Grat) Spectroscope
LISA IR/Visual Spectroscope (IR Configured)
Alpy 200/600 with Guide/Calibration modules and Photometric slit
Star Analyzer 200
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