SIMBAD references

2009ApJ...691..219C - Astrophys. J., 691, 219-227 (2009/January-3)

The motion of water masers in the pre-planetary nebula IRAS 16342-3814.


Abstract (from CDS):

We present high angular resolution observations, using the Very Long Baseline Array of the NRAO4The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc., of the high-velocity water masers toward the "water fountain" pre-planetary nebula, IRAS 16342-3814. The detailed structure of the water masers appears to be that of bow shocks on either side of a highly collimated jet. The proper motions of the water masers are approximately equal to the radial velocities; the three-dimensional velocities are approximately±180 km/s, which leads to a very short dynamical timescale of ∼100 yrs. Although we do not find direct evidence for precession of the fast collimated jet, there may be indirect evidence for such precession.

Abstract Copyright:

Journal keyword(s): masers

Simbad objects: 11

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2009ApJ...691..219C and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact