Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-11-16
Astron.J.133:631-638,2007
Astronomy and Astrophysics
Astrophysics
24 pages, includes 4 figures. Accepted for AJ
Scientific paper
10.1086/510348
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 twelve nebulae have parallax errors less than 20 percent. The parallax for PHL932 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 estimated from spectra of the central stars. Proper motions and tangential velocities are presented. No astrometric perturbations from unresolved close companions are detected.
Canzian Blaise
Dahn Conard C.
Guetter Harry H.
Harris Hugh C.
Leggett Sandy K.
No associations
LandOfFree
Trigonometric Parallaxes of Central Stars of Planetary Nebulae does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Trigonometric Parallaxes of Central Stars of Planetary Nebulae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trigonometric Parallaxes of Central Stars of Planetary Nebulae will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-337288