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File:Black hole lensing web.gif

From Wikipedia, the free encyclopedia

Black_hole_lensing_web.gif ‎(240 × 192 pixels, file size: 714 KB, MIME type: image/gif, looped, 55 frames, 0.6 s)

Summary

Description
Lensing by a black hole. Animated simulation of gravitational lensing caused by a Schwarzschild black hole going past a background galaxy. A secondary image of the galaxy can be seen within the black hole Einstein ring on the opposite direction of that of the galaxy. The secondary image grows (remaining within the Einstein ring) as the primary image approaches the black hole. The surface brightness of the two images remains constant, but their angular size varies, hence producing an amplification of the galaxy luminosity as seen from a distant observer. The maximum amplification occurs when the background galaxy (or in the present case a bright part of it) is exactly behind the black hole.
Source en:Image:BlackHole_Lensing_2.gif
Author Urbane Legend (optimised for web use by Alain r)
Permission
(Reusing this file)		 GNU Free Documentation License
Other versions full size version (12MB)


GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
w:en:Creative Commons
attribution share alike 		This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
This licensing tag was added to this file as part of the GFDL licensing update.

Captions

Animated simulation of a black hole crossing in front of a distant galaxy, showing gravitational lensing as it passes

Items portrayed in this file

depicts

black hole

media type

image/gif

checksum

28640f07c8a7970487896cb30bd2cf7af4b98fc5

determination method: SHA-1

data size

730,758 byte

duration

0.5500000000000003 second

height

192 pixel

width

240 pixel

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current21:31, 12 February 2007Thumbnail for version as of 21:31, 12 February 2007240 × 192 (714 KB)Siebrand{{Information| |Description={{en|Lensing by a black hole. Animated simulation of gravitational lensing caused by a Schwarzschild black hole going past a background galaxy. A secondary image of the galaxy can
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Retrieved from "https://en.wikipedia.org/wiki/File:Black_hole_lensing_web.gif"
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