Published January 1991
| Version v1
Journal article
PB 6 and its central star
Creators
- 1. Computer Sciences Corp., Lanham, MD (USA)
- 2. NASA, Goddard Space Flight Center, Greenbelt, MD (USA)
- 3. Space Telescope Science Institute, Baltimore, MD (USA)
- 4. Illinois Univ., Urbana (USA)
Description
It is found that the hot nucleus of the Type I southern planetary nebula PB 6 is a member of the rare class of O VI stars. The blended O VI 3811 + 3834 emission doublet is one of the strongest seen, with an equivalent width (relative to the stellar continuum) of about 400 A. The helium, nitrogen, and carbon abundances are all very high for the core mass and the relations found by Kaler and Jacoby (1990). The Ne/O ratio, at 0.17, is close to the norm found for planetaries, which supports the high O/H, while the S/O is roughly solar. 58 refs
Additional details
Publishing Information
- Journal Title
- Publications of the Astronomical Society of the Pacific
- Journal Volume
- 103
- Series
- Publ. Astron. Soc. Pac.
- Journal Page Range
- 67-78
- ISSN
- 0004-6280
- CODEN
- PASPA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22053521
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- CARBON; CHEMICAL COMPOSITION; EMISSION SPECTRA; HELIUM; LINE WIDTHS; LUMINOSITY; NITROGEN; ORGANIZING; PLANETARY NEBULAE; ULTRAVIOLET RADIATION
- Descriptors DEC
- ELECTROMAGNETIC RADIATION; ELEMENTS; NEBULAE; NONMETALS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; RADIATIONS; RARE GASES; SPECTRA