Book contents
- Frontmatter
- Contents
- Preface
- Conference Photograph
- Conference Participants
- Part one Stellar Evolution and Wind Theory
- Part two Wolf-Rayet Ring Nebulae
- Part three Supernovae
- Part four Asymptotic Giant Branch stars
- Part five Planetary Nebulae
- Morphology and kinematics of PNe
- FLIERs in elliptical Planetary Nebulae
- Circumstellar dust in PN and PPN
- H-poor ejecta in A30 and A78
- The neutral envelopes of PNe
- Magnetic shaping of Planetary Nebulae
- Aspherical two-wind configurations
- Part six Novae and Symbiotic Stars
- Poster Papers
- Author Index
- Object Index
Morphology and kinematics of PNe
from Part five - Planetary Nebulae
Published online by Cambridge University Press: 07 September 2010
- Frontmatter
- Contents
- Preface
- Conference Photograph
- Conference Participants
- Part one Stellar Evolution and Wind Theory
- Part two Wolf-Rayet Ring Nebulae
- Part three Supernovae
- Part four Asymptotic Giant Branch stars
- Part five Planetary Nebulae
- Morphology and kinematics of PNe
- FLIERs in elliptical Planetary Nebulae
- Circumstellar dust in PN and PPN
- H-poor ejecta in A30 and A78
- The neutral envelopes of PNe
- Magnetic shaping of Planetary Nebulae
- Aspherical two-wind configurations
- Part six Novae and Symbiotic Stars
- Poster Papers
- Author Index
- Object Index
Summary
Abstract
The morphology and kinematics of Planetary Nebulae (PNe) are reviewed based on the available data from the work of Keeler (1908) to the present. The correlations between morphological class and other fundamental parameters are explored. An HR diagram of the different classes is presented. Asymmetrical and special nebulae are considered: bipolars, point symmetry, irregulars, multiple shell objects, ansae, jets, and haloes. The role of binarity and the link with symbiotic stars are shown to be important. Post-PN nebulae are discussed. IR, CO and radio data on the morphology and kinematics of PNe are briefly reviewed.
Introduction
The morphology of Planetary Nebulae (PNe) has been studied for many years. Early catalogues of images of PNe have been presented by Keeler (1908) and Curtis (1918). These were the first comprehensive photographic samples of PNe images, and a lot of work on the classification and morphology has been based on these papers.
The importance of a nebula's morphology, of which the diameter of the object is the simplest form, lies in the physical parameters that can be derived from it.
The diameter of a nebula is related to its evolutionary stage, to its distance and is needed for the modeling of its spectrum. One method of distance determination uses the diameter and the Hβ flux of a nebula, under the assumption of a constant given mass for all PNe (Shklovskii 1956).
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- Information
- Circumstellar Media in Late Stages of Stellar Evolution , pp. 274 - 290Publisher: Cambridge University PressPrint publication year: 1994
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