New full featured black holes for Celestia

Cham · Post #21by **Cham** » 01.01.2005, 22:20

The star's bulges are a tidal effect from the black hole on the star, like our sun and moon are doing on our Earth's ocean.

Guest · Post #22by **Guest** » 04.01.2005, 20:22

I just might be stupid, but I cant just get these to work. All the files on their right places, in medres, datas, and models...I put the file in the extras...but nothing shows on the program.

Cham · Post #23by **Cham** » 04.01.2005, 20:27

Do you have Celestia 1.4.xx ? I'm using the "Barycenter" command in this addon, so it wont work in 1.3.2. However, if you're using 1.3.2, you could edit the stc and ssc files to remove the Barycenter, and put the black holes in orbit around their companion star.

DarkCrawler90 · Post #24by **DarkCrawler90** » 05.01.2005, 11:56

I have 1.3.2...I download the newer version, thanks.

DarkCrawler90 · Post #25by **DarkCrawler90** » 05.01.2005, 12:12

Sorry, but where I can download the 1.4?

jestr · Post #26by **jestr** » 05.01.2005, 13:16

See this thread here
http://www.shatters.net/forum/viewtopic.php?t=6350
it has a link to the download,Jestr

Guest · Post #27by **Guest** » 05.01.2005, 13:47

Thanks.

Cham · Post #28by **Cham** » 07.01.2005, 21:59

Guys, I just finished another version of a black hole. This time, it has a pulsar as companion. Tell me what you think from the snapshots below.

If there's enough interest, I'll upload them to the Motherlode. Yeah, yeah, I know, the colors may be wrong (especially for the pulsar), but who knows ? They are artistic interpretations of things we never saw. Of course, if you have any suggestions, or crittics, please tell ! :-)

But few words are necessary here : The green lines around the pulsar are a representation of the Synchrotron radiation emitted by relativistic particles trapped in the intense magnetic field of the pulsar. They really make some circles around the field lines (which are invisible).

Two views of the new black hole :

Two views of the companion pulsar :

Brendan · Post #29by **Brendan** » 07.01.2005, 22:02

I liked how the jets of the black holes looked like they were sparkling from the rapid rotation so I want to see the pulser.

maxim · Post #30by **maxim** » 07.01.2005, 22:37

Looks crazy from the screenshoots.
As it is artists interpretation, we can easily deal with several different versions - giving every black hole it's unique signature.

The only thing I'm still not confident with, are the jets. I find them FAR to intense as seen from the side. The faint outer layers seems more 'realistic'.

maxim

Cham · Post #31by **Cham** » 07.01.2005, 22:53

maxim wrote:The only thing I'm still not confident with, are the jets. I find them FAR to intense as seen from the side. The faint outer layers seems more 'realistic'.

maxim

Well, don't forget that real pulsars may be immersed in a gaz cloud or nebula, or a thick accretion disk, which may me illuminated by the jets. A bit like a real flash light beam is visible from the sides when you walk in a dust cloud.

But there's another serious reason the jets may be visible from the sides : synchrotron radiation. Particles trapped in the magnetic field are moving in a circular pattern, along the jets. So they radiate in a plane perpendicular to the jet.

Here's a close picture of the pulsar itself. Look like the atrix memory core !

jestr · Post #32by **jestr** » 07.01.2005, 23:00

Martin,I think these look fantastic,please upload them to the Motherlode,as to whether they are realistic or not?Nobody can prove otherwise as yet.Cheers Jestr

Post #33by **dirkpitt** » 08.01.2005, 02:26

These look awesome.

I'm writing an article on Celestia and the pulsar-black hole would be dynamite --
just waiting for the Motherlode to get updated (or if Cham would let me use these pics in the mean time
that'd be fine too

Cham · Post #34by **Cham** » 08.01.2005, 02:38

Of course you could use the picture ! :-)

I would be pleased !

The zip file was uploaded to the Motherlode today. Hope it will be available soon.

maxim · Post #35by **maxim** » 08.01.2005, 10:01

Cham wrote:Here's a close picture of the pulsar itself. Look like the atrix memory core !

The jet source looks like been litten from outside. The dot's at the side are looking well - like glowing from inside, though.

I'm not shure how to adress this problem graphically (I've run into it several times myself) Maybe the dark spots near the jet source shouldn't fade out so much - instead they should remain as a dark pattern at top of the glow with extra bright edges perhaps. (I'll see if I'm able to skech an example)

maxim

maxim · Post #36by **maxim** » 08.01.2005, 10:07

There is an interesting article about a supermassive black hole, causing the biggest eruption ever discovered in the universe:

http://chandra.harvard.edu/photo/2005/ms0735/

There are also some artist impressions and an animation of the eruption (The artist draws jets with two tailed endings):

http://chandra.harvard.edu/photo/2005/ms0735/animations.html#bh_erupt

maxim

maxim · Post #37by **maxim** » 08.01.2005, 10:21

Cham wrote:Well, don't forget that real pulsars may be immersed in a gaz cloud or nebula, or a thick accretion disk, which may me illuminated by the jets. A bit like a real flash light beam is visible from the sides when you walk in a dust cloud.

Ok, then one idea may be, to place a fixed disk in line with the jets and draw the surrounding glow onto it while keeping the jet's quite faint. Unfortunately this is a 2D solution and will look good only from two positions. I'll keep thinking ...

maxim

Cham · Post #38by **Cham** » 08.01.2005, 17:41

maxim wrote:
Cham wrote:Well, don't forget that real pulsars may be immersed in a gaz cloud or nebula, or a thick accretion disk, which may me illuminated by the jets. A bit like a real flash light beam is visible from the sides when you walk in a dust cloud.

Ok, then one idea may be, to place a fixed disk in line with the jets and draw the surrounding glow onto it while keeping the jet's quite faint. Unfortunately this is a 2D solution and will look good only from two positions. I'll keep thinking ...

maxim

I have an idea that will need to be experimented. There may be some ways in Celestia to do this. I may have two solutions, one with cones and another with two perpendicular Selden planes. I'll try an experimentation next week. If successful, it will gives a fourth incarnation of a black hole.

Cham · Post #39by **Cham** » 09.01.2005, 17:09

My new Black Hole and its pulsar are available now, at the Motherlode. Go to this page :

http://www.celestiamotherlode.net/catal ... l.php#1800

There's no picture showing yet, however. Just look out for the name "Black Hole 3".

Cham · Post #40by **Cham** » 10.01.2005, 17:57

I have heavily edited my black hole with pulsar addon. I've added many accretion disks, and a nice 3D plasma torus around the pulsar. Also, some textures have been "polished", so I think it may be a good idea to update the zip file at the Motherlode. I'll do it in the next few days. Here's a snapshot of the pulsar with it's (orange) accretion disk and its (blue) plasma torus :