spectro-aras.com

Here's a comparaison between a spectrum taken last night with another from last August (eShel Spectrograph)

I got a spectrum tonight of WR140. With eShel R=11000, ATIK460, Celestron C14.
But i forget who collects these data ?

Regards

Thierry Lemoult

Thierry,

I don't know who collects the spectra...

But I upload my last spectra of WR140 in BAA data base

Olivier

Hello,

congratulations to everybody for your excellent spectra. Here you are the result of three consecutive nights. All spectra taken with the DADOS (1200 l/mm, R=5200-5700) operating through a newton 8". Exposures of 5x1200" (except the first night, 3x900" with bad seeing).
Also, I wonder where can I upload these fits.

Clear skies!
Fran

The campaign was originally announced on the Pro-Am Convento forum. The link is here
http://www.spectro-aras.com/forum/viewt ... =20&t=1483
Noel Richardson also requested data via AAVSO
https://www.aavso.org/aavso-alert-notice-546

I plan to save mine up until after periastron and offer the full set to Noel Richardson or whoever on the Convento forum make can use them. Eventually I will put them on the BAA database for future researchers.

Cheers

I've shot this object as well! Unfortunately, I just barely found-out I missed the interesting lines longer than 5850 angstroms in most of my shots;
thanks to the spectra presented here I was able to figure out my equivalent Relco Ne-Ar lines! I'll get these longer wavelengths on subsequent spectra.

Here is my result of observations (line calibrated/instrument response corrected) taken on 30-Nov-2016:


Hope to catch more activity as the stellar winds increase and collide. Looking forward to the excellent spectra taken here!
(Btw, I shot some CaK and Ha shots which I'll show later)

James Foster
Los Angeles, CA

I just processed data for WR140 taken on 09 Dec 2016 (sum 8x300sec exposures, 2x2 bin):

When I compare this to the data taken on 30Nov16, I see some change in the CIII "mound."
Weather has taken a turn for the worse so I may need to go to the field to take data close
to periston on 18Dec16!

James

New spectrum of WR 140 taken last night.
Some smalls évolutions in 6 days

Hello :

I believe that together, we are getting good results with the ER140.

I leave you with a graph of test reliability of the observation Paolo Beradi and one of mine.

Also a graph of 10 days in 2016 05/2016 12 08.

Regards, Joan.

Here is my latest (14Dec16) spectrum of WR140:

CIII and HeI looks more prominent; I did a longer exposure and used a wider slit
to improve my spectral efficiency, which at the wavelength is kinda of week.

I see a lot of light pollution background in my spectra, which is towards downtown
LA 10 miles away; see:


James Foster
Los Angeles, CA