It is currently Sun, 19-11-17, 8:33 GMT

All times are UTC




Post new topic Reply to topic  [ 5 posts ] 
Author Message
 Post subject: Black Hole Visualization
PostPosted: Tue, 22-03-11, 13:45 GMT 
Offline
Site Admin
User avatar

Joined: Fri, 31-08-07, 7:01 GMT
Posts: 4508
Location: Hamburg, Germany
A scientific level simulation of the various distortions in the stellar sky effected by a Black Hole has been coded by Thomas Müller/Daniel Weiskopf@ Institut für Visualisierung und Interaktive Systeme Stuttgart/Germany.

The underlying scientific publication is here:
T. Müller, D. Weiskopf, Distortion of the stellar sky by a Schwarzschild black hole,
American Journal of Physics 78, 204-214 (2010).
DOI: 10.1119/1.3258282

The corresponding openSource program is in C++, using openGL for the 3D renderings.

http://www.vis.uni-stuttgart.de/~muelleta/IntBH/

The code may be downloaded for Linux and for Windows
from Thomas Müller's above homepage.

Here are thre great videos (.MP4) from the simulation that provide a strikingly good visualization of the strange distortion phenomena in different configurations of the observer relative to the Black Hole:

+++++++++++++++++++++++++++++++
1) Free fall starting with zero velocity from rObs/rs = 5.0 (7.4MB)
http://www.vis.uni-stuttgart.de/~muelle ... 00x600.mp4

2) The observer quasistatically approaches the black hole. (6 mb)
http://www.vis.uni-stuttgart.de/~muelle ... 00x600.mp4

3) The observer is rotating around the Schwarzschild black hole on the fixed radius rObs/rs = 5.0 (15 mb)
http://www.vis.uni-stuttgart.de/~muelle ... 00x600.mp4
+++++++++++++++++++++++++++++++

Since the format size is large (1200 x600) you might want to first download the videos locally before playing them. I can get a very smooth display online using the vlc (cross-platform) player.

Fridger


Last edited by t00fri on Tue, 22-03-11, 17:48 GMT, edited 1 time in total.

Top
 Profile  
 
 Post subject:
PostPosted: Tue, 22-03-11, 16:37 GMT 
Offline
Site Admin
User avatar

Joined: Thu, 30-08-07, 22:52 GMT
Posts: 2726
Location: France, South, not far from Montpellier
Stunning! Any application of this code for Celestia? Euhh... Is Celestia still alive btw?


Top
 Profile  
 
 Post subject:
PostPosted: Tue, 22-03-11, 17:45 GMT 
Offline
Site Admin
User avatar

Joined: Fri, 31-08-07, 7:01 GMT
Posts: 4508
Location: Hamburg, Germany
ElChristou wrote:
Stunning! Any application of this code for Celestia? Euhh... Is Celestia still alive btw?


Yes, indeed. It's not only nice it's also correct ;-) I am certainly planning to include BH visualization into Celestia.Sci. While there are BH add-ons (Cham) already, the proper distortions of space-time cannot be implemented at the add-on level.

Cheers,
Fridger


Top
 Profile  
 
 Post subject:
PostPosted: Thu, 21-04-11, 4:19 GMT 
Offline

Joined: Tue, 19-04-11, 11:40 GMT
Posts: 3
Thank you for sharing. Watching the videos now.

_________________
USB flash drive


Top
 Profile  
 
PostPosted: Sun, 30-03-14, 11:00 GMT 
Offline
User avatar

Joined: Sun, 09-03-14, 13:09 GMT
Posts: 53
Location: Hangzhou, China
Sounds like fun. Expecting...

_________________
Hanghang


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group