IUE observations of the halo planetary nebula BB-1: the C, O and Ne abundances.

Details IUE observations of the halo planetary nebula BB-1: the C, O and Ne abundances. IUE observations of the halo planetary nebula BB-1: the C, O and Ne abundances.

Nov 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993rmxaa..27..175p&link_type=abstract

Revista Mexicana de Astronomia y Astrofisica, Vol. 27, p. 175 - 179

Astronomy and Astrophysics

Astronomy

5

Planetary Nebulae: Uv Spectroscopy, Planetary Nebulae: Metal Abundances

Scientific paper

The authors present new high and low dispersion IUE observations of the halo planetary nebula BB-1 (PN G108.4-76.1). They have determined the C/H value to be 5.1×10-4. This object is among the PNe with the highest C/O and Ne/O ratios; its Ne/O ratio is 10 times higher than solar. The extreme enrichment of C and Ne imposes strong constraints on stellar evolution models of low-mass stars.

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