(Paper) Evidence of a Jovian Mass Solar Companion in the Oort Cloud? |
(Paper) Evidence of a Jovian Mass Solar Companion in the Oort Cloud? |
Apr 27 2010, 05:07 AM
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
[Posts moved from "INCOMING" discussion.]
... a new confirmation of the "Nemesis" theory Persistent Evidence of a Jovian Mass Solar Companion in the Oort Cloud |
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Apr 27 2010, 04:07 PM
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#2
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Senior Member Group: Members Posts: 1018 Joined: 29-November 05 From: Seattle, WA, USA Member No.: 590 |
Some interesting points (this thing is over 40 pages long!)
1) They reject the "Nemesis" concept, saying the object couldn't cause "comet storms." 2) They want to name it "Tyche" for the good sister of Nemesis. 3) They're talking 1-4 MJ at 10,000 to 30,000 AU; to put that in perspective, note that even a probe like NH would take thousands of years get there. 4) It's inclined 133 degrees to the ecliptic, but they think the orbit's circular. 5) Depending on assumptions, they give as much as a 50% chance that this is an illusion caused by randomness in the observations. Within year, WISE will know. Gives us something to anticipate though. --Greg |
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Apr 28 2010, 08:29 PM
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Member Group: Members Posts: 202 Joined: 9-September 08 Member No.: 4334 |
I hope this works out, and that WISE finds the object .. but can it? I remember reading that WISE couldn't find an Earth-size body at Kuiper belt (or was it Oort cloud?) temperatures. At that distance from the Sun, it'll be *really* cold ... but at Jupiter-mass plus, it should produce a significant amount of internal heat.
'Tyche' is a clever name. 3) They're talking 1-4 MJ at 10,000 to 30,000 AU; to put that in perspective, note that even a probe like NH would take thousands of years get there. Yeah, if it exists, it'll take a new generation of propulsion technologies to get there in anything resembling a reasonable time. Presuming 20,000 AU, to get there in twenty years would require an average speed of 4740 km/s. |
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Apr 28 2010, 09:26 PM
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#4
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Senior Member Group: Members Posts: 1018 Joined: 29-November 05 From: Seattle, WA, USA Member No.: 590 |
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