Hey folks, I could use a little help with something. This might take more than a few minutes, so I am prepared to pay a consulting fee (say $100/hr). I don't think it will take more than an hour, so nobody gets rich. I don't have a strong background in physics, but I am preparing a paper that makes passing mention of mass accretion by stellar-sized black holes. I have the book by Frolov and Novikov (Black Hole Physics), which I think is probably the primary text on the topic. I find the relevant equations in Chapter 9, but I have a little bit of confusion as to some of the parameters. Anyone interested in a little pocket change?