Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apj...544..889h&link_type=abstract
The Astrophysical Journal, Volume 544, Issue 2, pp. 889-894.
Astronomy and Astrophysics
Astronomy
21
Stars: Circumstellar Matter, Ism: Jets And Outflows, Planetary Nebulae: Individual (M1-16), Stars: Mass Loss
Scientific paper
We report high-resolution (2.7"×1.9") CO J=2-1 line imaging of the young planetary nebula M1-16 that reveals the shaping of its neutral envelope by collimated outflows or jets. An extended (~50") envelope of molecular gas surrounds the compact (3") ionized nebula and dominates the mass of circumstellar material (~0.12 Msolar). Multiple bipolar outflows, prominent at optical wavelengths, have pierced the envelope from the center, disrupting a significant fraction of the molecular gas. The outflows have excavated cavities along the bipolar axes, with CO velocities up to ~30 km s-1 in the cavity walls, and have produced point-symmetric lobes of molecular gas by entrainment. These features, imprinted by the outflows on the neutral gas, will appear as characteristics of the ionized nebula as the envelope becomes more fully ionized. The outflow-envelope interactions seen in M1-16 exemplify the shaping mechanism of a wide class of planetary nebulae at early stages of their formation.
Bachiller Rafael
Cox Pierre
Forveille Thierry
Huggins Patrick J.
No associations
LandOfFree
The Shaping of Planetary Nebulae by Bipolar Outflows: The Case of M1-16 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 The Shaping of Planetary Nebulae by Bipolar Outflows: The Case of M1-16, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Shaping of Planetary Nebulae by Bipolar Outflows: The Case of M1-16 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1730791