Other
Scientific paper
May 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...182.4415w&link_type=abstract
American Astronomical Society, 182nd AAS Meeting, #44.15; Bulletin of the American Astronomical Society, Vol. 25, p.870
Other
Scientific paper
We present 2-D axisymmetric hydrodynamical simulations of thermally driven winds from accretion disks which result from the absorption of X-rays from a central compact object (~ 10(8M_sun) ). We have assumed the accretion disk flares with radius so that the outer parts can be directly exposed to the ionizing radiation from the central source. The effects of rotation, central gravity from the compact object, and optically thin heating and cooling have been added to a second-order Godunov scheme employing local adaptive mesh refinement. Each model exhibits solutions where there is a gravitationally bound, nearly isothermal corona for streamlines emanating from small radii, and a free flowing wind for streamlines from large radii. We have calculated models for a range of luminosities which show the different types of wind solutions possible. These range from a rapidly-heated, nearly isothermal wind for high luminosities to a slowly-heated, gravitationally inhibited wind for low luminosities. A direct comparison is made to the analytic prediction of mass loss rate as a function of radius of Begelman, McKee, and Shields (1983). We find good agreement at high luminosities; however, discrepancies are found at low luminosities indicating an improved description of the transition to a gravitationally retarded wind. Finally, for the purposes of X-ray spectroscopy of the wind, we present the column density of various iron ions as a function of inclination angle of the disk for a few of our models.
Bell John B.
Castor John I.
Klein Richard I.
McKee Christopher F.
Woods Tod D.
No associations
LandOfFree
X-ray Heated Winds from Accretion Disks 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 X-ray Heated Winds from Accretion Disks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-ray Heated Winds from Accretion Disks will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1849315