Electron temperatures in the high-excitation zones of planetary nebulae

Journal Article · Thu Jun 01 04:00:00 EDT 1989 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/167548· OSTI ID:5667483

Rowlands, N; Houck, J R; Herter, T; Gull, G E; Skrutskie, M F ^[1]

---

1. Cornell Univ., Ithaca, NY (USA)

Airborne infrared and ground-based UV observations of the forbidden Ne-V 24.3-micron and forbidden Ne-V 3426-A fine-structure lines of 17 planetary nebulae are discussed. Significantly higher Ne-V than O-IV temperatures are found for Hu 1-2 and NGC 2440, while IC 2165, NGC 6818, and NGC 7662 have similar Ne-V and O-IV temperatures. It is suggested that the Ne-V and O-IV temperature similarities may be due to the presence of large abundances of the dominant coolants (oxygen or neon) in the Ne-V zone. 32 refs.

• OSTI ID: 5667483
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 341; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
ELECTROMAGNETIC RADIATION
ELECTRON TEMPERATURE
ELEMENTS
FINE STRUCTURE
FLUIDS
GASES
GROUND TRUTH
INFRARED RADIATION
NEBULAE
NEON
NONMETALS
OXYGEN
PLANETARY NEBULAE
RADIATIONS
RARE GASES
ULTRAVIOLET RADIATION