Broad Halpha wings in Nebulae around Evolved Stars and in Young Planetary Nebulae

Details Broad Halpha wings in Nebulae around Evolved Stars and in Young Planetary Nebulae Broad Halpha wings in Nebulae around Evolved Stars and in Young Planetary Nebulae

2003-02-19

arxiv.org/abs/astro-ph/0302398v1

Astronomy and Astrophysics

Astrophysics

15 pages, 1 figure. Accepted for publication in Ap J Suppl

Scientific paper

10.1086/374922

Eleven objects that have been reported as proto-planetary nebula or as young planetary nebulae that show very extended Halpha wings are presented. The extension of these wings is larger than 800 km/s. Data for two symbiotic stars that show this same characteristic is also presented. Raman scattering is the mechanism that best explains the wings in 10 of the PNe and in the 2 symbiotic stars. In the PN IRAS 20462+3416 the wing profile can be explained by very intense stellar wind.

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