Trigonometric Parallaxes of Central Stars of Planetary Nebulae

2006/11/16 by Hugh C. Harris, Conard C. Dahn, Blaise Canzian +11 · 2 citations
Physics and Astronomy · #Astrometry #Astronomy and Astrophysical Research #History and Developments in Astronomy #Parallax #Planetary nebula #Spectral line #Stars #Stellar, planetary, and galactic studies #Trigonometry #astro-ph

paper · pdf · doi:10.1086/510348

published as Astron.J.133:631-638,2007 · 24 pages, includes 4 figures. Accepted for AJ

arxiv created 2006/11/16 · openalex publication_date 2007/01/11 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Trigonometric parallaxes of 16 nearby planetary nebulae are presented, including reduced errors for seven objects with previous initial results and results for six new objects. The median error in the parallax is 0.42 mas, and 12 nebulae have parallax errors of less than 20%. The parallax for PHL 932 is found here to be smaller than was measured by Hipparcos , and this peculiar object is discussed. Comparisons are made with other distance estimates. The distances determined from these parallaxes tend to be intermediate between some short distance estimates and other long estimates; they are somewhat smaller than those estimated from spectra of the central stars. Proper motions and tangential velocities are presented. No astrometric perturbations from unresolved close companions are detected.

Citations

• On the discovery of an enormous ionized halo around the hot DO white dwarf PG 1034+001
• Indications of a Large Fraction of Spectroscopic Binaries among Nuclei of Planetary Nebulae
• The Nebular Environment and Enigmatic Hard X-Ray Emission of the Hot DO White Dwarf KPD 0005+5106
• Serendipity and the Sloan Digital Sky Survey: Discovery of the Largest Known Planetary Nebula on the Sky

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