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2002ApJS..139..199P - Astrophys. J., Suppl. Ser., 139, 199-217 (2002/March-0)
The distances of planetary nebulae: a scale based upon nearby sources.
PHILLIPS J.P.
Abstract (from CDS):
We have, using such sources, undertaken a detailed revision of the surface brightness-radius calibration, and thereby defined a new statistical scale which is consistent with the most direct, recent, and reliable distance measures. This scale is used to determine distances to 448 Population I Galactic planetary nebulae, and the results are compared to alternative statistical scales. It is shown that much of the disparity between the present distance scale and that of Zhang is likely to arise through differences in calibration source distances. It does not (as supposed by previous authors) appear to be a product of selection effects within the nebular samples. A disparity with the van de Steene & Zijlstra distances may arise from differences between Galactic bulge and disk nebulae, while the scales of Daub and Cahn et al. appear to be based upon inappropriate trends between surface brightness and radius.
Finally, we discuss the implications of these results for the formation rates of planetary nebulae and determine a galaxy-wide total of PNe NT=3.0x104. The luminosity specific formation rate χL∼3x10–11L–1☉,BOL appears ∼2.5 times larger than determined in previous analyses, while the rate per unit area of Galactic disk [χA(PNe)∼1.6x10–3yr–1kpc–2] is comparable to the value deduced for white dwarfs.
Abstract Copyright: ∼
Journal keyword(s): Catalogs - ISM: Planetary Nebulae: General
Status at CDS : Large table(s) of objects being ingested in VizieR.
Simbad objects: 5
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