Freshly Ionized Matter Around the Final Helium Shell Glash Object V4334 Sagittarii (Sakurais Object)
We report on the discovery of recently ionized hydrogen-deficient gas in the immediate circumstellar environment of the final helium shell flash star V4334 Sgr (Sakurai's object). On spectra obtained with FORS2 multiobject spectroscopy, we have found spatially extended (∼2″) emission from [N II], [O I], [O II], and very faint Hα and [S II]. In the [N II] (λλ6548, 6583) lines, we have identified two components located at velocities -350 ± 50 and +200 ± 50 km s-1, relative to V4334 Sgr itself....[Show more]
|Collections||ANU Research Publications|
|Source:||Astrophysical Journal, The|
|01_Kerber_Freshly_Ionized_Matter_Around_2002.pdf||74.09 kB||Adobe PDF||Request a copy|
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.