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eps Aur - 7699A line status

Posted: Sun Feb 19, 2012 4:43 pm
by Robin Leadbeater
The excess absorption at 7699A from neutral potassium has now reached the same level as when I first detected it above the noise on 24th May 2009 (0.03A EW) See attached for the evolution over the past 2 months. Eps Aur is better placed currently though and my equipment has improved over the past 3 years so it should be possible to track it a bit further before it finally disappears into the noise.

Cheers
Robin
eps Aur excess K absorption at 7699A  Dec 2011 - Feb 2012
eps Aur excess K absorption at 7699A Dec 2011 - Feb 2012
epsaur_ki_18-4feb-21-9jan12-16dec11_excess.png (6.7 KiB) Viewed 7070 times