Spectrophotometry of 15 Planetary Nebulae and a Possible Symbiotic Star

We provide line intensities and limited chemical compositions of a collection of planetary nebulae, most of which are within 25° of the Galactic center. Several appear enriched in nitrogen and/or helium. The central star of M1-51 displays C iv in emission. Ha 1-2 has the spectral characteristics of...

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Bibliographic Details
Published in:Publications of the Astronomical Society of the Pacific 1993-06, Vol.105 (688), p.599-602
Main Authors: Kaler, James B., Bell, David, Hayes, John, Stanghellini, Letizia
Format: Article
Language:English
Subjects:
Astronomical objects
Astronomy
Density
Earth, ocean, space
Exact sciences and technology
Helium
Interstellar extinction
Interstellar medium (ism) and nebulae in milky way
Nebulae
Nitrogen
Planetary nebulae
Stars
Stellar spectra
Stellar systems. Galactic and extragalactic objects and systems. The universe
Symbiotic stars
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Summary:We provide line intensities and limited chemical compositions of a collection of planetary nebulae, most of which are within 25° of the Galactic center. Several appear enriched in nitrogen and/or helium. The central star of M1-51 displays C iv in emission. Ha 1-2 has the spectral characteristics of a symbiotic star.
ISSN:0004-6280
1538-3873
DOI:10.1086/133202