Physical parameters for 12 planetary nebulae and their central stars in the Magellanic Clouds

Journal Article · Tue Sep 01 04:00:00 EDT 1987 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/165532· OSTI ID:5748076

Aller, L H; Keyes, C D; Maran, S P; Gull, T R; Michalitsianos, A G; Stecher, T P

Nebular and central star parameters and elemental abundances of C, N, O, Ne, S, and Ar are presented for the planetary nebulae N2, N5, N43, N54, and N67 in the SMC and P2, P7, P9, P25, P33, and P40 in the LMC. The nebular chemical compositions are affected by nuclear processes in the precursor stars, which may not have been sufficiently massive to synthesize Ne, S, or Ar, which appear to be deficient with respect to their solar abundances by factors of roughly four and five for the LMC and SMC, respectively. Even after excluding nebulae formed by stars in which O apparently was destroyed by nuclear processes, O depletion in the LMC and SMC nebulae is significantly greater than in galactic planetaries. The estimated masses of the 12 remnant central stars range from 0.58 to 0.71 solar mass. 31 references.

• Research Organization: California Univ., Los Angeles; NASA, Goddard Space Flight Center, Greenbelt, MD
• OSTI ID: 5748076
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 320; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
ASTROPHYSICS
CHEMICAL COMPOSITION
ELEMENT ABUNDANCE
ELEMENTS
GALAXIES
MAGELLANIC CLOUDS
MASS
NEBULAE
NONMETALS
NUCLEAR REACTIONS
OXYGEN
PHYSICAL PROPERTIES
PLANETARY NEBULAE
SPECTRA
STAR EVOLUTION
ULTRAVIOLET SPECTRA