Erratum: Null Geodesics Around a Kerr Black Hole

24-Apr-1998: Someone recently pointed out to me a typo in the equations for r_H and r_stat. These are equations (2.11) and (2.12) on page 11 in the PostScript version. In the hypertext version they don't have numbers; they are found on the hypertext document that has the following two addresses

    http://www.astro.ku.dk/RelViz/milvang/000_node12.html
    http://www.astro.ku.dk/~milvang/RelViz/000_node12.html

The first M² should just be an M, like in the equation for r_H which also includes the natural constants G and c (the equation just below the two above-mentioned, which is Eq. 2.13 in the PostScript version).

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Last updated: 24-Apr-1998 (page created: 24-Apr-1998)

Bo Milvang-Jensen (milvang@astro.ku.dk)