Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-09-26
Astronomy and Astrophysics
Astrophysics
Poster contribution, published in Asymmetrical Planetary Nebulae IV
Scientific paper
High spatial resolution images of PNe have shown their extremely complex morphology. However, the circumstellar envelopes of their progenitors, the AGB stars, are strikingly spherical. In order to understand the carving processes leading to axisymmetric nebulae, we are carrying out a study of a large sample of pre-PNe. Our emission model of the nebular molecular gas (12CO & 13CO) will allow us to determine important physical parameters (mass, linear momentum, kinetic energy) of the fast bipolar and slow spherical nebular components separately. We will study in an innovative way the properties for each source individually, and put our results in an evolutionary context with the help of the data obtained by us and collected from the literature.
Alcolea Javier
Bujarrabal Valentin
Castro-Carrizo Arancha
Jiménez-Esteban Francisco
Quintana-Lacaci Guillermo
No associations
LandOfFree
Deep study of the fast bipolar outflows in pre-PNe from CO mm-wave line emission 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 Deep study of the fast bipolar outflows in pre-PNe from CO mm-wave line emission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Deep study of the fast bipolar outflows in pre-PNe from CO mm-wave line emission will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-695109