The effect of a stellar magnetic variation on the jet velocity

Details The effect of a stellar magnetic variation on the jet velocity The effect of a stellar magnetic variation on the jet velocity

2008-08-14

arxiv.org/abs/0808.1949v1

Astronomy and Astrophysics

Astrophysics

5 pages, 3 figures, accepted for publication in ApJ

Scientific paper

10.1086/592494

Stellar jets are normally constituted by chains of knots with some periodicity in their spatial distribution, corresponding to a variability of order of several years in the ejection from the protostar/disk system. A widely accepted theory for the presence of knots is related to the generation of internal working surfaces due to variations in the jet ejection velocity. In this paper we study the effect of variations in the inner disk-wind radius on the jet ejection velocity. We show that a small variation in the inner disk-wind radius produce a variation in the jet velocity large enough to generate the observed knots. We also show that the variation in the inner radius may be related to a variation of the stellar magnetic field.

Affiliated with

Also associated with

No associations

Rating

The effect of a stellar magnetic variation on the jet velocity 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 effect of a stellar magnetic variation on the jet velocity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The effect of a stellar magnetic variation on the jet velocity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-584565