Paper:	Mass Loss from the Central Star of NGC 7009
Volume:	388, Mass Loss from Stars and the Evolution of Stellar Clusters
Page:	223
Authors:	Sonneborn, G.; Iping, R.C.; Massa, D.; Herald, J.; Chu, Y.-H.
Abstract:	The central star of NGC7009 (HD 200516) was observed with the FUSE satellite, covering 905-1187 Å at a spectral resolution of 15 kms−1. The observed stellar wind lines are OVI 1032, S VI 933-44 and Ne VII 973 (FUSE), plus NV 1240 and OV 1371 (IUE). CIV 1550 and PV 1118-28 are absent, indicating that the wind is very highly ionized. The mass loss rate is estimated as ∼ 10−7 MSolaryr−1and the terminal velocity 2450 kms−1. Preliminary analysis of the stellar spectrum identifies several strong lines of FVI, FeVI, FeVII and NiIV.

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