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Oort Cloud Jupiter lurking ? (Read 3054 times)
frankuitaalst
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Oort Cloud Jupiter lurking ?
02/22/11 at 13:00:13
 
I was sceptical when I read through the article mentionned in this link  
http://www.universetoday.com/83363/about-that-giant-planet-possibly-hiding-in-th e-outer-solar-system/
My first thought was that the autors detected some anomalies in the orbit of Sedma and tried to relate an unknow massive planet lurking in the Oort cloud .  
Instead they  statistically analyzed the properties of long period comets , one of them being comet Halley .  
mmm
 
Hereunder is the result of a sim running for about 370.000 years .  
 I positionned a Jupiter planet at 10.000 AU from sun and added 50 test particles between 9500-10500 AU at an anomoly of +/- 10% from the Jovian .  
All bodies have an inclination of 162 ( comparable to Halley's ).  
The system has a period of about 1 million (10^6) years .  
Somewhere in the middle of the sim a test partcle is shot away from the Jovian in intersteller space .  
With an even good chance the particle could have been injected into the solar system , becomming a long period comet .  
The whole solar system in this sim is reduced almost to a point . Plutos orbit arond the sun is hardly visible .  
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OortCloudAnimation.gif
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EDG
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Re: Oort Cloud Jupiter lurking ?
Reply #1 - 02/22/11 at 14:28:40
 
I think there's something weird going on with the link to the article - this one seems to work: http://www.universetoday.com/83363/
 
Sedna's a weird one anyway (possibly worth investigating here) - apparently its orbit is kinda impossible - it's too far to have been affected by Neptune and placed in its current orbit, and too close to have wandered in from the Oort cloud. See:
 
http://www.mikebrownsplanets.com/2010/10/there-is-something-out-there.html
http://www.mikebrownsplanets.com/2010/10/theres-something-out-there-part-2.html
http://www.mikebrownsplanets.com/2010/11/theres-something-out-there-part-3.html
 
for more info.
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(formerly known as Mal)
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frankuitaalst
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Re: Oort Cloud Jupiter lurking ?
Reply #2 - 02/23/11 at 10:26:48
 
Some of you are familiar with the orbital elements defined hereunder ?  
( extract from the abstract referred to in the OP )  
 
Class 1A OOC orbital elements. All angles are in degrees.
Comet name x S q(AU) B L Gamma
 
 
C/1996 J1-A(B) -510(-1) -1 1.2978 15.9 202.6 55.0 51.13
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« Last Edit: 02/23/11 at 12:32:11 by frankuitaalst »  
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