Numerical studies of wind accretion

Details Numerical studies of wind accretion Numerical studies of wind accretion

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...176..235a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 176, no. 2, April 1987, p. 235-244.

Statistics

Computation

62

Stellar Mass Accretion, Stellar Winds, X Ray Binaries, X Ray Sources, Angular Momentum, Computational Fluid Dynamics, Mach Cones, Momentum Transfer, Two Dimensional Flow

Scientific paper

Wind accretion from a companion star is assumed to be the power source for wide X-ray binaries. These winds will in general have spatial variations both in density and in the velocity vector. The authors have performed 2-dimensional numerical computations of such inhomogeneous wind flows to obtain estimates on the amount of angular momentum accreted for a given gradient of the velocity vector. They find that the angular momentum flux is about a factor 5 smaller than the previous estimates. This means that there is not enough angular momentum transferred to the neutron star to explain, for example, the long term period changes of Vela X-1. This leads the authors to propose a different mechanism for the spin-up and spin-down of sources of the type of Vela X-1. They outline briefly the physical features of such a model.

Affiliated with

Also associated with

No associations

Rating

Numerical studies of wind accretion 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 Numerical studies of wind accretion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Numerical studies of wind accretion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1346894