Published September 1987
| Version v1
Journal article
Spectrophotometry of the compact planetary nebulae NGC 6879 and NGC 6881
- 1. Hopkins Observatory, Williamstown, MA
- 2. Illinois Univ., Urbana
Description
The spectra of the two compact planetary nebulae NGC 6879 and NGC 6881 were observed between 3727 and 6731 A, with both the IRS and the IIDS at Kitt Peak, and extinction constants, electron densities and temperatures, and a wide variety of ionic abundances were calculated. Both nebulae have high densities. NGC 6881, the more highly excited of the two, is significantly enriched in nitrogen and possibly exhibits some elevation in helium. 23 references
Additional details
Publishing Information
- Journal Title
- Publ. Astron. Soc. Pac.
- Journal Volume
- 99
- Series
- Publ. Astron. Soc. Pac.
- Journal Page Range
- 952-956
- ISSN
- 0004-6280
- CODEN
- PASPA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19043232
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- CHEMICAL COMPOSITION; ELECTRON DENSITY; ELECTRON TEMPERATURE; HELIUM; IONIC COMPOSITION; NITROGEN; PLANETARY NEBULAE; SPECTRA
- Descriptors DEC
- ELEMENTS; NEBULAE; NONMETALS; RARE GASES