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(Paper) Evidence of a Jovian Mass Solar Companion in the Oort Cloud?
Paolo
post Apr 27 2010, 05:07 AM
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... a new confirmation of the "Nemesis" theory Persistent Evidence of a Jovian Mass Solar Companion in the Oort Cloud
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qraal
post Dec 22 2010, 09:55 AM
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Another paper available on the arXiv which is germane to this discussion is Lorenzo Iorio's piece...

The perihelion precession of Saturn, planet X/Nemesis and MOND

...the abstract of which I quote...

QUOTE
We show that the retrograde perihelion precession of Saturn \Delta\dot\varpi, recently estimated by different teams of astronomers by processing ranging data from the Cassini spacecraft and amounting to some milliarcseconds per century, can be explained in terms of a localized, distant body X, not yet directly discovered. From the determination of its tidal parameter K = GM_X/r_X^3 as a function of its ecliptic longitude \lambda_X and latitude \beta_X, we calculate the distance at which X may exist for different values of its mass, ranging from the size of Mars to that of the Sun. The minimum distance would occur for X located perpendicularly to the ecliptic, while the maximum distance is for X lying in the ecliptic. We find for rock-ice planets of the size of Mars and the Earth that they would be at about 80-150 au, respectively, while a Jupiter-sized gaseous giant would be at approximately 1 kau. A typical brown dwarf would be located at about 4 kau, while an object with the mass of the Sun would be at approximately 10 kau, so that it could not be Nemesis for which a solar mass and a heliocentric distance of about 88 kau are predicted. If X was directed towards a specific direction, i.e. that of the Galactic Center, it would mimick the action of a recently proposed form of the External Field Effect (EFE) in the framework of the MOdified Newtonian Dynamics (MOND).
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kap
post Jul 25 2011, 09:57 PM
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QUOTE (qraal @ Dec 22 2010, 01:55 AM) *
Another paper available on the arXiv which is germane to this discussion is Lorenzo Iorio's piece...

The perihelion precession of Saturn, planet X/Nemesis and MOND

...the abstract of which I quote...


Am I correct in thinking only a captured body could be in orbit completely perpendicular to the ecliptic? Something 80-150 AU and the size of Mars or greater certainly would have been seen by now, even if it's orbit was extremely inclined. Unless it's somehow being obscured...

-kap
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- Paolo   (Paper) Evidence of a Jovian Mass Solar Companion in the Oort Cloud?   Apr 27 2010, 05:07 AM
- - ngunn   Much appreciated, thanks. Best of all the full art...   Apr 27 2010, 07:45 AM
- - Hungry4info   I think calling it a "confirmation" is g...   Apr 27 2010, 10:35 AM
|- - Paolo   QUOTE (Hungry4info @ Apr 27 2010, 12:35 P...   Apr 27 2010, 04:57 PM
- - Phil Stooke   This certainly can't be called a confirmation,...   Apr 27 2010, 12:02 PM
- - Greg Hullender   Some interesting points (this thing is over 40 pag...   Apr 27 2010, 04:07 PM
|- - stewjack   QUOTE (Greg Hullender @ Apr 27 2010, 11:0...   Apr 27 2010, 05:09 PM
||- - tedstryk   Yeah, why in the world would they use math in tryi...   Apr 27 2010, 06:07 PM
||- - stevesliva   QUOTE (tedstryk @ Apr 27 2010, 02:07 PM) ...   Apr 27 2010, 08:51 PM
|- - Vultur   I hope this works out, and that WISE finds the obj...   Apr 28 2010, 08:29 PM
|- - Greg Hullender   QUOTE (Vultur @ Apr 28 2010, 12:29 PM) Pr...   Apr 28 2010, 09:26 PM
- - ngunn   Whether this object exists or not there is plenty ...   Apr 27 2010, 10:46 PM
- - nprev   The merits of math aside, statistical inference is...   Apr 27 2010, 10:47 PM
- - alan   This paper reminds me of an article I read in Sky ...   Apr 28 2010, 12:49 AM
- - Phil Stooke   I was assuming that IR surveys - going right back ...   Apr 28 2010, 01:15 AM
- - nprev   They do mention IRAS, and sort of artfully adjust ...   Apr 28 2010, 02:37 AM
- - Stu   Great, something ELSE to add on to our Solar Syste...   Apr 29 2010, 05:34 AM
|- - PFK   QUOTE (Stu @ Apr 29 2010, 06:34 AM) Great...   Apr 29 2010, 09:16 AM
- - Stu   Brilliant! Thanks PFK, you just scribbled one ...   Apr 29 2010, 02:22 PM
- - Big_Gazza   Not wanting to inject controversy into this thread...   Apr 29 2010, 11:57 PM
- - brellis   Wouldn't Jupiter have to be upgraded to ...   Apr 30 2010, 12:15 AM
- - Hungry4info   I interpret the rule to mean that the object has t...   Apr 30 2010, 12:42 AM
- - Vultur   What is the total mass of the Oort Cloud? I'm ...   Apr 30 2010, 02:05 AM
- - nprev   I wouldn't be surprised it's vastly less t...   Apr 30 2010, 02:12 AM
- - Greg Hullender   I see it estimated anywhere from 40 Earth masses t...   Apr 30 2010, 02:31 AM
- - brellis   It gets a little confusing to hear about the Voyag...   Oct 2 2010, 02:38 AM
- - dmuller   What's the Hillsphere of the Sun?   Oct 2 2010, 07:37 AM
|- - centsworth_II   QUOTE (dmuller @ Oct 2 2010, 02:37 AM) Wh...   Oct 2 2010, 08:00 AM
- - nprev   I was going to ask why the radius of the Sun's...   Oct 2 2010, 08:42 AM
|- - dmuller   QUOTE (nprev @ Oct 2 2010, 06:42 PM) Sinc...   Oct 4 2010, 11:41 PM
- - centsworth_II   Looking back to the previous page (621) to the pag...   Oct 2 2010, 08:57 AM
- - centsworth_II   Flurry of tweets at #dps2010: "Hal Levison p...   Oct 4 2010, 06:57 PM
- - brellis   Is there a way to measure the 'wobble' of ...   Oct 4 2010, 11:49 PM
- - Lunik9   Interesting Tyche theory but different with the Ne...   Oct 5 2010, 11:27 AM
|- - Greg Hullender   QUOTE (Lunik9 @ Oct 5 2010, 03:27 AM) Int...   Oct 5 2010, 04:08 PM
- - qraal   Another paper available on the arXiv which is germ...   Dec 22 2010, 09:55 AM
- - kap   QUOTE (qraal @ Dec 22 2010, 01:55 AM) Ano...   Jul 25 2011, 09:57 PM


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