2013/01/16 by Miriam Peña, M. Peña, Jackeline S. Rechy-García +6
Physics and Astronomy · #Astronomical and nuclear sciences #Astrophysics and Star Formation Studies #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Stellar, planetary, and galactic studies #astro-ph.GA
paper · pdf · doi:10.48550/arxiv.1301.3657
11 pages, 2 figures, 5 tables. Table 4 available in: ftp://ftp.iac.es/out/jogarcia/vel_rad/MP_Table4.pdf. Accepted for publication in Revista Mexicana de Astronomía y Astrof\'ısica
arxiv created 2013/01/16 · openalex publication_date 2013/01/16 · arxiv updated 2013/01/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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 showing that the Wolf-Rayet phenomenon in central stars can occur at any stellar mass and in old objects. None of our WLPNe is Type I. Thus, [WR]PNe and WLPNe are unrelated objects.