Sound Speed and the Pseudo-Newtonian Potential

• FUKUE, Jun

Abstract

type:Article

We propose a special-relativistic correction to the sound speed calculated from the Paczynski and Wiita (1980) pseudo-Newtonian potential, in order to avoid divergence to infinity at the Schwarzschild radius. Under this correction, the re-scaled sound speed approaches c/sqrt3 at the Schwarzschild radius; otherwise, it diverges there. Spherical flows onto a black hole are briefly discussed.

Journal

• PASJ : publications of the Astronomical Society of Japan

  PASJ : publications of the Astronomical Society of Japan 56 959-963, 2004-12-25

  Astronomical Society of Japan

Keywords

• accretion
• accretion disks
• astrophysical jets
• black hole physics
• relativity

Details

• CRID: 1050845762734019456
• NII Article ID: 10023932957
• NII Book ID: AA1082896X
• ISSN: 00046264
• NDL BIB ID: 7193796
• Web Site: http://ir.lib.osaka-kyoiku.ac.jp/dspace/handle/123456789/1400
• Web Site: http://id.ndl.go.jp/bib/7193796
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7193796
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • NDL
  • CiNii Articles
  • KAKEN