Characterizing Low-Ionization Structures in PNe

Details Characterizing Low-Ionization Structures in PNe Characterizing Low-Ionization Structures in PNe

2003-12-19

arxiv.org/abs/astro-ph/0312527v1

Astronomy and Astrophysics

Astrophysics

7 pages including 3 figures and 1 table. Invited paper given at Asymmetric Planetary Nebulae III, eds. M. Meixner, J. Kastner,

Scientific paper

Fifty five planetary nebulae containing micro-structures of low-ionization (LIS) are analyzed in this review in terms of LIS morphology, kinematics, and physical and excitation properties. We attempt to address the issue of their origin through the comparison of LIS properties with the main shells of the nebulae, as well as the contrast with the theoretical model predictions. We finally conclude that, while LIS morphology and kinematics can be reasonably accounted for by the available theoretical models, they cannot explain the LIS physical/excitation properties, unless we agree that evolved PNe are expected to show neither shock-excited LIS nor significant density contrasts relatively to their environments. Some evidence for the latter ideas is actually presented in this paper.

Affiliated with

Also associated with

No associations

Rating

Characterizing Low-Ionization Structures in PNe 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 Characterizing Low-Ionization Structures in PNe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Characterizing Low-Ionization Structures in PNe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-198166