Tovmassian G.; Yungelson L.; Rauch T.; Suleimanov V.; Napiwotzki R.; Stasińska G.; Tomsick J.; Wilms J.; Morisset C.; Pẽa M.; Richer M.
(2010)
We present a detailed investigation of SBS1150+599A, a close binary star hosted by the planetary nebula PNG135.9+55.9 (TS 01). The nebula, located in the Galactic halo, is the most oxygen-poor known to date and is the only ...