Kinematic Distance of Galactic Planetary Nebulae

Abstract

We construct \HI~absorption spectra for 18 planetary nebulae (PNe) and their background sources using the data from the International Galactic Plane Survey. We estimate the kinematic distances of these PNe, among which 15 objects' kinematic distances are obtained for the first time. The distance uncertainties of 13 PNe range from 10% to 50%, which is a significant improvement with uncertainties of a factor two or three smaller than most of previous distance measurements. We confirm that PN G030.2-00.1 is not a PN because of its large distance found here.

21pages, 21figures, will be published in March/April 2016 by ApJS

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Cited by in corpus (5)

• The gas-to-extinction ratio and the gas distribution in the Galaxy
• A population of hypercompact HII regions identified from young HII regions
• A new statistical distance scale for planetary nebulae, based on Gaia EDR3
• The birth environment of the solar system constrained by the relative abundances of the solar radionuclides
• Extended Ionized Fe Objects in the UWIFE Survey