Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-12-21
Astronomy and Astrophysics
Astrophysics
8 pages with figures, submitted to Astron. Astroph. Transactions
Scientific paper
We follow the approach used by Davies and Pringle (1981) and discuss the trans-sonic substage of the propeller regime. This substage is intermediate between the supersonic and subsonic propeller substages. In the trans-sonic regime an envelope around a magnetosphere of a neutron star passes through a kind of a reorganization process. The envelope in this regime consists of two parts. In the bottom one turbulent motions are subsonic. Then at some distance $r_\mathrm{s}$ the turbulent velocity becomes equal to the sound velocity. During this substage the boundary $r_\mathrm{s}$ propagates outwards till it reaches the outer boundary, and so the subsonic regime starts. We found that the trans-sonic substage is unstable, so the transition between supersonic and subsonic substages proceeds on the dynamical time scale. For realistic parameters this time is in the range from weeks to years.
Popov Sergei B.
Prokhorov Mikhail E.
No associations
LandOfFree
Trans-sonic propeller stage 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 Trans-sonic propeller stage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trans-sonic propeller stage will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-120894