Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-01-15
Astrophys.J.585:L49-L54,2003
Astronomy and Astrophysics
Astrophysics
6 pages, 3 figures, accepted by The Astrophysical Journal Letters
Scientific paper
10.1086/373941
We present two-dimensional numerical simulations of the evolution of a low-mass star moving supersonically through its surrounding interstellar medium (ISM). We show that the ejecta of a moving star with a systemic velocity of 20 km/s will interact with the ISM and will form bow-shock structures qualitatively similar to what is observed. We find that, due to ram-pressure stripping, most of the mass ejected during the AGB phase is left downstream of the moving star. As a consequence, the formation of the PN is highly influenced, even at the low relative velocity of the star. The models are based on the predictions of stellar evolution calculations. Therefore, the density and velocity of the AGB and post-AGB winds are time dependent and give rise to the formation of shock regions inside the cavity formed by the previous winds. As a result, the stand-off distance is also time dependent and cannot be determined by simple analytical arguments.
Garcia-Segura Guillermo
Manchado Arturo
Villaver Eva
No associations
LandOfFree
Ram pressure stripping in Planetary Nebulae 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 Ram pressure stripping in Planetary Nebulae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ram pressure stripping in Planetary Nebulae will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-534475