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Abundances variations in PNe: Real or Illusory?

Published online by Cambridge University Press:  25 May 2016

A. Riera ,
B. Balick ,
G. Mellema ,
K. Xilouris  and
Y. Terzian
A. Riera
Affiliation:
1Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya 2Departament d'Astronomia i Meteorologia, Barcelona
B. Balick
Affiliation:
3Department of Astronomy, University of Washington, Seattle
G. Mellema
Affiliation:
4Stockolm Observatory, Saltsjobaden
K. Xilouris
Affiliation:
5National Astronomy and Ionosphere Observatory, Arecibo
Y. Terzian
Affiliation:
6Space Sciences, Cornell University, Ithaca

Extract

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In order to study the putative enrichment within a PN, we have undertaken deep long-slit spectroscopic observations of selected targets in which we expected to find clear evidence of abundance gradients. The targets include NGC 3242: one of the PNs studied by Balick et al. (1994) in which they report N/H enhancements of ∼ 5 in each FLIER; M1-18, M1-8, M3-3, NGC 6537 and Hubble 5. The observations were obtained at the 5-m Hale Telescope of the Palomar Observatory.

Type
IV. Envelopes
Information
Symposium - International Astronomical Union , Volume 180: Planetary Nebulae , 1997 , pp. 274
Copyright
Copyright © Kluwer 1997 

References

Balick, B., Perinotto, M., Maccioni, A., Terzian, Y. and Hajian, A., 1994, ApJ, 424, 800.Google Scholar
Guererro, M., Stanghellini, L., and Manchado, A., 1995 ApJ, 444, L49–L52.Google Scholar
Kingsburgh, R.L. and Barlow, M.J. 1994, MNRAS, 271, 257.CrossRefGoogle Scholar