Visual Distortions Near a Neutron Star and Black Hole

Details Visual Distortions Near a Neutron Star and Black Hole Visual Distortions Near a Neutron Star and Black Hole

1993-12-02

arxiv.org/abs/astro-ph/9312003v1

Am.J.Phys.61:619,1993

Astronomy and Astrophysics

Astrophysics

23 pages, Plain TeX (v. 3.0), figures in American Journal of Physics, 61, 619, 1993, video available upon written (hard copy)

Scientific paper

10.1119/1.17224

The visual distortion effects visible to an observer traveling around and descending to the surface of an extremely compact star are described. Specifically, trips to a ``normal" neutron star, a black hole, and an ultracompact neutron star with extremely high surface gravity, are described. Concepts such as multiple imaging, red- and blue-shifting, conservation of surface brightness, the photon sphere, and the existence of multiple Einstein rings are discussed in terms of what the viewer would see. Computer generated, general relativistically accurate illustrations highlighting the distortion effects are presented and discussed. A short movie (VHS) depicting many of these effects is available to those interested free of charge.

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