Discovery of Multiple Shells Around the Planetary Nebula IC 418

Details Discovery of Multiple Shells Around the Planetary Nebula IC 418 Discovery of Multiple Shells Around the Planetary Nebula IC 418

2012-04-26

arxiv.org/abs/1204.5816v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

9 pages, 5 figures, accepted for publication in MNRAS

Scientific paper

We have analysed optical, near-, and mid-IR images of the bright planetary nebula (PN) IC 418. These images probe unambiguously for the first time a number of low surface brightness structures and shells around the bright main nebula, including radial filaments or rays, a system of three concentric rings, and two detached haloes with sizes ~ 150" and 220"\times250", respectively. The main nebula is slightly off-centered with respect to the elliptical outer halo. The time-lapse between the two haloes is 10,000-50,000 yr, whereas the time-lapse between the three concentric rings is ~ 630 yr. We emphasize the advantages of near- and mid-IR imaging for the detection of faint structures and shells around optically bright nebulae.

Affiliated with

Also associated with

No associations

Rating

Discovery of Multiple Shells Around the Planetary Nebula IC 418 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 Discovery of Multiple Shells Around the Planetary Nebula IC 418, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discovery of Multiple Shells Around the Planetary Nebula IC 418 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-313590