W 16-185: A Heavily Reddened, Low-Excitation Planetary Nebula

Low-dispersion spectroscopy and narrow-band CCD imaging has been obtained for the planetary nebula (PN) candidate W 16-185 in order to clarify its nature. These data, in particular the emission-line spectrum, lead to the conclusion that it is a heavily reddened, low-excitation PN rather than a compa...

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Bibliographic Details
Published in:Publications of the Astronomical Society of the Pacific 1993-08, Vol.105 (690), p.867-870
Main Authors: Noumaru, Junichi, Ogura, Katsuo
Format: Article
Language:English
Subjects:
Astronomical objects
Astronomy
Earth, ocean, space
Emission spectra
Exact sciences and technology
Interstellar medium (ism) and nebulae in milky way
Luminosity
Nebulae
Observational astronomy
Observational research
Planetary nebulae
Point sources
Spectroscopy
Stellar systems. Galactic and extragalactic objects and systems. The universe
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Summary:Low-dispersion spectroscopy and narrow-band CCD imaging has been obtained for the planetary nebula (PN) candidate W 16-185 in order to clarify its nature. These data, in particular the emission-line spectrum, lead to the conclusion that it is a heavily reddened, low-excitation PN rather than a compact H ii region. However, the IRAS luminosity and colors of the associated point source are rather unusual for a PN.
ISSN:0004-6280
1538-3873
DOI:10.1086/133247