LMC SMP 64 - The youngest planetary nebula?

Details LMC SMP 64 - The youngest planetary nebula? LMC SMP 64 - The youngest planetary nebula?

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...374l..21d&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 374, June 10, 1991, p. L21-L24.

Astronomy and Astrophysics

Astrophysics

3

Asymptotic Giant Branch Stars, Magellanic Clouds, Planetary Nebulae, Stellar Evolution, Abundance, Photoionization, Stellar Mass Ejection, Stellar Spectrophotometry, Stellar Temperature

Scientific paper

The planetary nebula SMP 64 in the Large Magellanic Cloud is shown to possess several properties which set it apart from the general PN population. These are an extremely high central electron density, a strong radial density gradient, and a central star with a very low effective temperature, T(eff) = 31,500 K. However, the luminosity of the central star is 6400 solar luminosities, implying a core mass of 0.62 solar mass, typical of the Magellanic Cloud population of planetary nebulae. It is concluded that the central star of SMP 64 has only just reached a temperature high enough to ionize a portion of the material ejected during the asymptotic giant branch evolution of the central star.

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