The structure and dynamics of the bi-polar nebula MZ - 3
Open Access
- 1 September 1983
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 204 (1) , 203-218
- https://doi.org/10.1093/mnras/204.1.203
Abstract
High-dispersion observations have been made of the bi-polar nebula MZ – 3 with the Anglo-Australian telescope. The continuum from the core has been shown to be of atomic origin originating in an ionized gas with Ne ≳ 105 cm−3. Three separate velocity components from this core are continuous with the velocities (over a range of VHEL from −147 to + 35 km s−1) in the outer regions. A distinct tilt (80 km s−1) to the velocity curves from one side of MZ − 3 to the other is observed. Also from and around the core the Hα line has wings that are 2460 km s−1 in extent. If MZ − 3 is at a distance of ≃ 1 kpc then a radiatively ionized stellar wind of 1.7 × 10−4M⊙ yr−1 would be required to explain this. More likely it is produced by electron scattering.Keywords
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