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.

Astronomical Society of the Pacific
Conference Series

© Copyright 1988 - 2024 - Astronomical Society of the Pacific
No part of the material protected by this copyright may be reproduced or used in any form other than for personal use without written permission from the ASP.

Page generated in 0.072 seconds