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Naked.Singularity,Overextremal.Kerr.Newman,Raytracing.png (800 × 430 pixels, file size: 270 KB, MIME type: image/png)

Summary

Description
English: Gravitational lensing of an overextremal Kerr-Newman naked ring singularity with spin a/M=√2 and charge Q/M=√2, in natural units of G=K=c=1 (so a²+Q²=2M²). The observer is at r=50M and views the naked singularity from the equatorial plane (edge on); its left side is rotating towards the observer. FOV: 77.4°×38.7°. The equations that were used to raytrace the image can be found here. Comparison: Ref. 1[1] and Ref 2[2]
Date
Source Own work
Author Yukterez (Simon Tyran, Vienna). Source material for the Milky way background (also available on Commons): ESO/S.Brunier. Code for the relativistic raytracer and other angles: yukterez.net
Other versions
The same singularity viewed from 45°
The same singularity viewed from the top
Extremal Kerr-Newman black hole with the same total energy as the naked singularity above

References

  1. Waseda University: Gravitational Lensing and Black Hole Shadows, p.14 (Phys.Rev. D80,024042,'09)
  2. DeVries: The apparent shape of a rotating charged black hole, closed photon orbits and the bifurcation, p.20. doi:10.1088/0264-9381/17/1/309

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10 April 2018

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Date/TimeThumbnailDimensionsUserComment
current01:59, 21 April 2018Thumbnail for version as of 01:59, 21 April 2018800 × 430 (270 KB)Yukterezdisplay the distance and angle of view in the right upper corner
20:13, 11 April 2018Thumbnail for version as of 20:13, 11 April 2018800 × 430 (270 KB)Yukterezreduced width to 800px to avoid rescaling
19:52, 11 April 2018Thumbnail for version as of 19:52, 11 April 2018860 × 430 (292 KB)YukterezUser created page with UploadWizard

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