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- W2158194626 abstract "High resolution spectra are used to analyze the galactic kinematics and distribution of a sample of planetary nebulae with [WR] and ‘wel’ central star ([WR]PN and WLPN). The circular and peculiar velocities, (Vpec), of the objects were derived. The results are: (a) [WR]PNe are distributed mainly in the galactic disk and they are more concentrated in a thinner disk than WLPNe and normal PNe, which corresponds to a younger population. (b) The sample was separated in Peimbert’s types, and it is found that Type I PNe have Vpec � 50 km s −1 , indicating young objects. Most of the [WR]PNe are of Type II showing Vpec � 60 km s −1 , although a small percentage is of Type III with larger Vpec. This shows that the Wolf-Rayet phenomenon in central stars can occur at any stellar mass and in old objects. None of our WLPNe is of Type I. Thus, [WR]PNe and WLPNe are unrelated objects." @default.
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- W2158194626 date "2013-04-02" @default.
- W2158194626 modified "2023-10-18" @default.
- W2158194626 title "GALACTIC KINEMATICS OF PLANETARY NEBULAE WITH [WC] CENTRAL STAR" @default.
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