Morphology of bipolar planetary nebulae. I - Two-dimensional spectrophotometry

Details Morphology of bipolar planetary nebulae. I - Two-dimensional spectrophotometry Morphology of bipolar planetary nebulae. I - Two-dimensional spectrophotometry

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26as...83...27p&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 83, no. 1, April 1990, p. 27-39.

Physics

Optics

3

Morphology, Planetary Nebulae, Stellar Spectrophotometry, Cassegrain Optics, Forbidden Transitions, Isophotes, Radiation Distribution, Stellar Spectra

Scientific paper

Two-dimensional spectrophotometric observations of bipolar planetary nebulas were performed by using a CCD detector mounted at the Cassegrain focus of either 1.54 m Danish Telescope or 2.2 m German Telescope at La Silla (ESO) in Chile. Emission lines have been selected with the help of narrow band-pass interference filters. Isophotal maps in various lines H-alpha NII 6584, OIII 5007, and SII 6717-6731 are presented. Particular attention has been given to scrutinizing the symmetries inside a few bipolar planetary nebulas, in order to subsequently investigate their space structure.

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