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Proceedings Paper

Two-Dimensional Photometry Of Planetary Nebulae
Author(s): Peter N. Kupferman
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Paper Abstract

Monochromatic images of three planetary nebulae, NGC 6720, NGC 7662 and HOC 2392, were taken using narrow band interference filters centered on the forbidden emission lines of Oxygen I, II, III, Nitrogen II, Sulfur II and the permitted emission lines of Hydrogen I, Helium I and Helium II. The data was taken with a silicon intensified vidicon using the Palomar 1.5 meter telescope and was recorded digitally to an encoding level of 12 bits. The data was processed at the Image Processing Laboratory of the Jet Propulsion Laboratory. The calibrated images were used to investigate the three dimensional structure of the nebulae and to generate two-dimensional electron and temperature maps.

Paper Details

Date Published: 21 November 1980
PDF: 4 pages
Proc. SPIE 0264, Applications of Digital Image Processing to Astronomy, (21 November 1980); doi: 10.1117/12.959815
Show Author Affiliations
Peter N. Kupferman, Jet Propulsion Laboratory (United States)

Published in SPIE Proceedings Vol. 0264:
Applications of Digital Image Processing to Astronomy
Denis A. Elliot, Editor(s)

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