On the Distance to Galactic Planetary Nebulae
Abstract
The distances are determined for 145 Galactic PNe using two methods. The distances for a sample of 131 PNe are determined using method A, based on the stellar mass and surface gravity. Method B, making use of the stellar luminosity, is applied to another sample of 61 PNe, of which 47 are in common with those in the sample for method A. The properties of the central star, such as the core mass, luminosity, and surface gravity, are inferred from the modeling of the distance-independent parameters. The results from the two methods used in this paper are consistent with each other. A distance of 11.3 kpc is found for K648 using method A of this work. This is in good agreement with the distance of 10 kpc of its hosting globular cluster M15.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- June 1993
- DOI:
- Bibcode:
- 1993ApJ...410..239Z
- Keywords:
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- Milky Way Galaxy;
- Planetary Nebulae;
- Computational Astrophysics;
- Distance;
- Globular Clusters;
- Stellar Mass;
- Astrophysics;
- ISM: PLANETARY NEBULAE: GENERAL