Sub-arcsecond Morphology of Planetary Nebulae

Abstract

Planetary nebulae (PNe) can be roughly categorized into several broad morphological classes. The high quality images of PNe acquired in recent years, however, have revealed a wealth of fine structures that preclude simplistic models for their formation. Here we present narrow-band, sub-arcsecond images of a sample of relatively large PNe that illustrate the complexity and variety of small-scale structures. This is especially true for bipolar PNe, for which the images reveal multi-polar ejections and, in some cases, suggest turbulent gas motions. Our images also reveal the presence or signs of jet-like outflows in several objects in which this kind of component has not been previously reported.

7 pages, 7 figures, Accepted for publication in PASA

References in corpus (2)

• Multiple and Precessing Collimated Outflows in the Planetary Nebula IC 4634
• Serendipitous XMM-Newton Detection of X-ray Emission from the Bipolar Planetary Nebula Hb 5

Cited by in corpus (10)

• The jet feedback mechanism (jfm) in stars, galaxies and clusters
• Discovery of close binary central stars in the planetary nebulae NGC 6326 and NGC 6778
• A barium central star binary in the Type-I diamond ring planetary nebula Abell 70
• IFU spectroscopy of southern PNe: III
• NGC 6778: a disrupted planetary nebula around a binary central star
• On the relationship between the H2 emission and the physical structure of planetary nebulae
• Morpho-kinematic analysis of the point-symmetric, bipolar planetary nebulae Hb 5 and K 3-17, a pathway to poly-polarity
• Multiple outflows in the planetary nebula NGC 6058
• High Resolution Spectroscopy of the Planetary Nebulae PM1-242, PM1-318 and PM1-322
• Ongoing surveys for close binary central stars and wider implications