Optical spectroscopy of Magellanic Cloud planetary nebulae. I

Journal Article · Fri Feb 01 04:00:00 EST 1991 · Astrophysical Journal, Supplement Series; (United States)

DOI:https://doi.org/10.1086/191536· OSTI ID:5666931

Meatheringham, S J; Dopita, M A ^[1]

---

1. Mount Stromlo and Siding Spring Observatories, Canberra (Australia)

Optical spectroscopy in the range 3300-7400 A is presented for a total of 30 planetary nebulae in the LMC and 11 in the SMC, with measurements of line intensities down to about 1 percent of H-beta. Reddening estimates from Balmer line ratios have been determined, and the line intensities dereddened accordingly. Nebular forbidden O III electron temperatures and, where measurable, forbidden N II temperatures and forbidden S II densities are given. Forbidden O II electron densities are recalculated using appropriate electron temperatures. The forbidden S II and forbidden O II electron densities are found to correlate well. A number of spectra exhibit interesting spectral features, including symbiotic-type profiles, unidentified emission lines, and nonsimple Balmer decrements. These objects are discussed in some detail. Zanstra temperatures are derived for a total of 25 objects possessing detectable stellar continua. 57 refs.

• OSTI ID: 5666931
• Journal Information: Astrophysical Journal, Supplement Series; (United States), Journal Name: Astrophysical Journal, Supplement Series; (United States) Vol. 75; ISSN APJSA; ISSN 0067-0049
• 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
BALMER LINES
ELECTRON DENSITY
ELECTRON TEMPERATURE
GALAXIES
MAGELLANIC CLOUDS
MASS
NEBULAE
PLANETARY NEBULAE
SPECTRA
STAR EVOLUTION
VISIBLE SPECTRA