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The ionization structure of planetary nebulae. IX. NGC 1535

Journal Article · · Astrophysical Journal; (USA)
DOI:https://doi.org/10.1086/167445· OSTI ID:5643952
 [1]
  1. Wheaton College, Norton, MA (USA)
The ionization structure of planetary nebula NGC 1535 was investigated using spectrophotometric observations of emission-line intensities over the spectral range 1400-7200 A, which were carried out in five positions in this nebula. The results obtained on the ionic abundances of He, O, N, Ne, C, and Ar in NGC 1535 suggest that it is a planetary nebula that formed initially in a somewhat metal-poor region and has undergone little or no enhancement of its original abundances by mixing with nuclear-processed material. 19 refs.
OSTI ID:
5643952
Journal Information:
Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 340; ISSN ASJOA; ISSN 0004-637X
Country of Publication:
United States
Language:
English