000002691 001__ 2691
000002691 005__ 20160701171709.0
000002691 0247_ $$2DOI$$a10.1051/eas/1571064
000002691 037__ $$aASTROimport-848
000002691 100__ $$aHoof, P. A. M.
000002691 245__ $$aThe Very Fast Evolution of V4334 Sgr
000002691 260__ $$c2015
000002691 520__ $$aV4334 Sgr (Sakurai*s object) is an evolved star that underwent a very late thermal pulse ejecting a new, hydrogen-deficient nebula inside the old planetary nebula. From 2001 through 2007 the emission lines from the new nebula showed an exponential decline in flux, consistent with a shock that occurred around 1998 and started cooling soon afterwards. Since 2008 the line fluxes have been continuously rising again. Our preliminary interpretation is that this emission comes from a region close to the central star, and is excited by a second shock, which may have been induced by an increase in the stellar mass loss and wind velocity associated with a rise in the stellar temperature. 
000002691 700__ $$a Van de Steene, G. C.
000002691 700__ $$a Kimeswenger, S.
000002691 700__ $$a Zijlstra, A. A.
000002691 700__ $$a Hadjuk, M.
000002691 700__ $$a Herwig, F.
000002691 773__ $$c287-288$$pEAS Publications Series$$v71$$y2015
000002691 85642 $$ahttp://esoads.eso.org/abs/2015EAS....71..287H
000002691 905__ $$apublished in
000002691 980__ $$aNONREF