Re: WR140 aproaching periastron
Posted: Sun Jan 29, 2017 9:38 pm
Hi all, thanks to some observations made from 23 Nov 2016 to 25 Jan 2017 I create an animation showing the CIII 5696 line evolution. I used ISIS animation tool, adding a bar indicating when the profile is not real but interpolated.

As we have seen for other animations and profile comparisons in this thread, the excess emission move from the blue side toward the red side of the flat top CIII 5696 line during the periastron passage, reflecting the shock cone radial velocity development:
http://www.roe.ac.uk/~pmw/Wr140orb.htm
(dash-dotted straight line is the our line of sight)
Radial velocity extent is very large, perhaps I should have used RVs instead of Angstroms for the abscissa graph.
Paolo

As we have seen for other animations and profile comparisons in this thread, the excess emission move from the blue side toward the red side of the flat top CIII 5696 line during the periastron passage, reflecting the shock cone radial velocity development:
http://www.roe.ac.uk/~pmw/Wr140orb.htm
(dash-dotted straight line is the our line of sight)
Radial velocity extent is very large, perhaps I should have used RVs instead of Angstroms for the abscissa graph.
Paolo