New kinematic distance scale for the Galactic planetary nebulae
Abstract
We analyze the kinematics of disk planetary nebulae (PNe) to derive the formal Galactic center distance, R 0, for three catalogues of PNe distances. Then we correct the catalogues' distance scales renormalizing the PNe distances by the ratios of formal R 0 values to a best modern value of R 0 =7.9 kpc. The created new catalogue of disk's PNe distances was found to be in a good agreement with distances by Stanghellini et al. (2008). Our catalogue of PNe distances was used to recalibrate the statistical distance scale for all Galactic PNe.
- Publication:
-
Planetary Nebulae: An Eye to the Future
- Pub Date:
- August 2012
- DOI:
- 10.1017/S1743921312011659
- Bibcode:
- 2012IAUS..283..406K
- Keywords:
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- Planetary nebulae: general;
- Galaxy: kinematics and dynamics