*Astron. Astrophys. 361, 781-787 (2000)*
## Appendix A
We can now compare the effect of non-Newtonian potential with the
finite specific angular momentum constant *j*. Values of *j*
should be determined from an eigen-value problem (e.g. Chen et al.
1997 determine in the unit of
Keplerian angular momentum at for
=0.1). Typically values of *j*
ranges from 0.4 to 1.0 in the above mentioned units. Exact numerical
calculations of Gammie & Popham 1998 (see Fig. 1) indicates
that this is indeed true. Moreover, one can estimate that this is the
case from the approximate solutions as follows:
Consider
.
Next, we use Eq. (29) to sustitute for
If we take ,
and
,
0.33 and thus one can have . Since
, our assumption
is justified.
© European Southern Observatory (ESO) 2000
Online publication: October 2, 2000
helpdesk.link@springer.de |