Kinematic Distance of Galactic Planetary Nebulae
Astrophysics of Galaxies
2016-04-06 v1 Solar and Stellar Astrophysics
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.
Keywords
Cite
@article{arxiv.1601.03269,
title = {Kinematic Distance of Galactic Planetary Nebulae},
author = {A. Y. Yang and W. W. Tian and H. Zhu and D. A. Leahy and D. Wu},
journal= {arXiv preprint arXiv:1601.03269},
year = {2016}
}
Comments
21pages, 21figures, will be published in March/April 2016 by ApJS