Catching a grown-up starfish planetary nebula – II. Plasma analysis and central star properties of PC 22

ABSTRACT After performing the morpho-kinematic analysis of planetary nebula (PN) PC 22, we now present its nebular and stellar analysis. The plasma investigation relies on novel use a Monte Carlo associated with pyneb code for uncertainty propagation. innermost region shows electronic temperatures Te ≈ 10 800 K using [N ii] ≈13 000 [O iii] densities ne 600 cm−3. We also used first time machine learning algorithm to calculate ionization correction factors (ICFs) specifically adapted 22. This has allowed us have pioneer ICFs (S+ + S++)/O++, Cl++/O++, Ar3+ Ar4+, as well possible new determination total abundance neon. study spectrum revealed presence broad emission lines consistent Wolf–Rayet-type [WR] classification more precisely [WO1] subtype based different qualitative quantitative criteria. is coherent high temperature derived from reproduction state gas Mexican Million Models data base (3MdB) best-fitting model obtained NLTE atmosphere PoWR. 22 therefore addition [WO1]-subtype PNe.