The influence of winds on the time-dependent behaviour of
self-gravitating accretion discs.
Monthly Notices of the Royal Astronomical Society, 395 (2).
We study effects of winds on the time evolution of isothermal, self-gravitating
accretion discs by adopting a radius dependent mass loss rate because of the existence
of the wind. Our similarity and semi-analytical solution describes time evolution of
the system in the slow accretion limit. The disc structure is distinct in the inner and
outer parts, irrespective of the existence of the wind. We show that existence of wind
will lead to a reduction of the surface density in the inner and outer parts of the disc
in comparison to a no-wind solution. Also, the radial velocity significantly increases
in the outer part of the disc, however, the accretion rate decreases due to the reduced
surface density in comparison to the no-wind solution. In the inner part of the disc,
mass loss due to the wind is negligible according to our solution. But the radial size
of this no-wind inner region becomes smaller for stronger winds.
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