****Notes on ViewsBHs still images ****

		      www.astro.umd.edu/~rauch/ViewsBHs/

			  Kevin P. Rauch, JHU & UMD

			     rauch@astro.umd.edu


This directory contains selected still frames from the "Views of Black Holes"
MPEG movie (located in the video directory), computed at higher resolutions to
show increased detail; for a general overview of the images, see the video
README file. The hidef and vga directories contain the same images, only at
different resolutions: 1536x1024 for hidef, 600x400 for vga. Images are
available in both JPEG (.jpg) and PNG (.png) formats. The  nogr  directories
contain versions of the images (where provided) showing what the view would
look like ignoring general relativistic effects---no gravitational redshifts
or light bending, etc. The book directory contains book quality (~4000x3000)
JPEGs of the images.

These images may be freely redistributed and used, for non-profit purposes,
subject to proper acknowledgement of the author.


Image descriptions
------------------

distort:   From episode 2, a view of the Doppler shifts and optical distortions
	   produced by a near-maximally rotating (a=0.998) Kerr black hole.

lensed:    A view of the symmetric multiple images produced near the disk
	   plane by a Schwarzschild (non-rotating) black hole; from
	   episode 3 (r=6.00).

rings:     A close-up of a frame from episode 1 (a=0.25), showing the multiple
	   ring images of the face-on disk.

subrings:  An extreme blow-up of a small portion of `rings', showing detail in
	   the ring images. Three lensed rings are visible.

spiralFW:  The confoundingly distorted disk image seen by the corotating
	   observer near the end of episode 6 (a=0.998, r=1.24), in which
	   several highly distorted images of the disk are visible. The view
	   window is centered on the true position of the black hole.

spiralBK:  Identical to spiralFW except that the image is now centered on the
	   observer's back view (looking out towards infinity).