KINEMATIC DISTANCES OF GALACTIC PLANETARY NEBULAE

Journal Article · Tue Mar 15 00:00:00 EDT 2016 · Astrophysical Journal, Supplement Series

DOI:https://doi.org/10.3847/0067-0049/223/1/6· OSTI ID:22519977

Yang, A. Y.; Tian, W. W.; Zhu, H.; Wu, D. ^[1]

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1. Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 (China)

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

• OSTI ID: 22519977
• Journal Information: Astrophysical Journal, Supplement Series, Vol. 223, Issue 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0067-0049
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ABSORPTION SPECTRA
CLOUDS
DISTANCE
HYDROGEN
MILKY WAY
PLANETARY NEBULAE
STARS