Broad Hα Wings in Nebulae around Evolved Stars and in Young Planetary Nebulae | Zendy

A. Arrieta | Zendy; S. TorresPeimbert | Zendy

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Broad Hα Wings in Nebulae around Evolved Stars and in Young Planetary Nebulae

Author(s) -

A. Arrieta,

S. TorresPeimbert

Publication year - 2003

Publication title -

the astrophysical journal supplement series

Language(s) - English

Resource type - Journals

eISSN - 1538-4365

pISSN - 0067-0049

DOI - 10.1086/374922

Subject(s) - planetary nebula , stars , physics , astrophysics , nebula , astronomy , emission nebula , bipolar nebula

Eleven objects that have been reported as proto-planetary nebula or as youngplanetary nebulae that show very extended Halpha wings are presented. Theextension of these wings is larger than 800 km/s. Data for two symbiotic starsthat show this same characteristic is also presented. Raman scattering is themechanism that best explains the wings in 10 of the PNe and in the 2 symbioticstars. In the PN IRAS 20462+3416 the wing profile can be explained by veryintense stellar wind.Comment: 15 pages, 1 figure. Accepted for publication in Ap J Supp

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