N67 as an X-ray bright planetary nebula in the Small Magellanic Cloud

Details N67 as an X-ray bright planetary nebula in the Small Magellanic Cloud N67 as an X-ray bright planetary nebula in the Small Magellanic Cloud

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.252p..47w&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 252, Sept. 15, 1991, p. 47P-49P.

Astronomy and Astrophysics

Astronomy

38

Magellanic Clouds, Planetary Nebulae, X Ray Sources, Abundance, Astronomical Spectroscopy, Metallicity, Stellar Luminosity, X Ray Spectroscopy

Scientific paper

Among the known planetary nebulae in the SMC, N67 has the hottest nucleus and highest N/O abundance ratio. Here, the identification of this planetary with an X-ray source 1E00056.8 - 7154 is reported, and it is shown that the observed extreme soft spectrum and strong emission of this X-ray source are consistent with the radiation from the surface of a single nucleus of N67 which is collapsing into a white dwarf. At a known distance in the SMC, N67 will be invaluable in testing the understanding of the structure and evolution of planetary nebulae.

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