W. J. Maciel - Abstract #81DISTANCES OF GALACTIC PLANETARY NEBULAE BASED ON A RELATIONSHIP BETWEEN THE CENTRAL STAR MASS AND THE N/O ABUNDANCEJ. O. Cazetta, W. J. Maciel Rev. Mex. Astron. Astrof. 36, 3-11 (2000) In this paper, we propose a method to determine distances of galactic planetary nebulae on the basis of a relationship between the central star mass Mc and the nebular N/O abundance ratio. This relationship is used in combination with some basic parameters of the central stars, such as the 5480 A flux, surface gravity and visual magnitude in order to obtain distances to a sample of a hundred galactic planetary nebulae. |