C/O and N/O ratios in planetary nebulae with [WC] central stars
Planetary nebulae (PNe) around [WR] central stars (WRPNe) constitute a particular photoionized nebula class, representing about 10-15% of the PNe with known progenitor. We have studied 14 of them, detecting a large number of optical recombination lines (ORLs) from different ions of O and C (O+, O++, C++, C+3). This allows us to determine the C/O
García-Rojas, J. et al.
Fecha de publicación:
4
2014