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Astrophysics > Earth and Planetary Astrophysics
The inclination of the planetary system relative to the solar equator may be explained by the presence of Planet 9
Rodney Gomes, Rogerio Deienno, Alessandro Morbidelli
(Submitted on 18 Jul 2016)
We evaluate the effects of a distant planet, commonly known as planet 9, on the dynamics of the giant planets of the Solar System. We find that, given the large distance of planet 9, the dynamics of the inner giant planets can be decomposed into a classic Lagrange-Laplace dynamics relative to their own invariant plane (the plane orthogonal to their total angular momentum vector) and a slow precession of said plane relative to the total angular momentum vector of the Solar System, including planet 9. Under some specific configurations for planet 9, this precession can explain the current tilt of approximately 6 degrees between the invariant plane of the giant planets and the solar equator. An analytical model is developed to map the evolution of the inclination of the inner giant planets' invariant plane as a function of the planet 9's mass, inclination, eccentricity and semimajor axis, and some numerical simulations of the equations of motion of the giant planets and planet 9 are performed to validate our analytical approach. The longitude of the ascending node of planet 9 is found to be linked to the longitude of the ascending node of the giant planets' invariant plane, which also constrain the longitude of the node of planet 9 on the ecliptic. Some of the planet 9 configurations that allow explaining the current solar tilt are compatible with those proposed to explain the orbital confinement of the most distant Kuiper belt objects. Thus, this work on the one hand gives an elegant explanation for the current tilt between the invariant plane of the inner giant planets and the solar equator and, on the other hand, adds new constraints to the orbital elements of planet 9.
Comments: manuscript #: AAS01708, submitted on July 12, 2016
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
Cite as: arXiv:1607.05111 [astro-ph.EP]
(or arXiv:1607.05111v1 [astro-ph.EP] for this version)
Submission history
From: Alessandro Morbidelli [view email]
[v1] Mon, 18 Jul 2016 14:57:19 GMT (195kb)
Astrophysics > Earth and Planetary Astrophysics
Solar Obliquity Induced by Planet Nine
Elizabeth Bailey, Konstantin Batygin, Michael E. Brown
(Submitted on 14 Jul 2016 (v1), last revised 20 Jul 2016 (this version, v2))
The six-degree obliquity of the sun suggests that either an asymmetry was present in the solar system's formation environment, or an external torque has misaligned the angular momentum vectors of the sun and the planets. However, the exact origin of this obliquity remains an open question. Batygin & Brown (2016) have recently shown that the physical alignment of distant Kuiper Belt orbits can be explained by a 5-20 Earth-mass planet on a distant, eccentric, and inclined orbit, with an approximate perihelion distance of ~250 AU. Using an analytic model for secular interactions between Planet Nine and the remaining giant planets, here we show that a planet with similar parameters can naturally generate the observed obliquity as well as the specific pole position of the sun's spin axis, from a nearly aligned initial state. Thus, Planet Nine offers a testable explanation for the otherwise mysterious spin-orbit misalignment of the solar system.
Comments: 8 pages, 4 figures, manuscript #: AAS01477, submitted on June 24, 2016
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
Cite as: arXiv:1607.03963 [astro-ph.EP]
(or arXiv:1607.03963v2 [astro-ph.EP] for this version)
Submission history
From: Elizabeth Bailey [view email]
[v1] Thu, 14 Jul 2016 00:03:28 GMT (5282kb,D)
[v2] Wed, 20 Jul 2016 01:21:27 GMT (5238kb,D)
postulate play
verb pos·tu·late ˈpäs-chə-ˌlāt
Popularity: Top 30% of words
Simple Definition of postulate
: to suggest (something, such as an idea or theory) especially in order to start a discussion
Source: Merriam-Webster's Learner's Dictionary
just adds credibility to Sitchin's work
originally posted by: forthelove
a reply to: ElectricUniverse
Yeah well I postulate that the cause is entirely different:
We, our solar system, are in the outer arm of some galaxy, hurtling through space at 36,000 miles an hour, surrounded by other galaxies whipping around us at 48,000 miles per hour, with dark matter in between distorting and convulsing, throwing comets and asteroids in every direction, while being magnetically charged, which in turn causes everything to become a dance of inconsistencies compounded by certainty.
oh but there's a rogue planet out there
Extreme trans-Neptunian objects and the Kozai mechanism:
signalling the presence of trans-Plutonian planets
C. de la Fuente Marcos⋆ and R. de la Fuente Marcos
Universidad Complutense de Madrid, Ciudad Universitaria, E-28040 Madrid, Spain
Accepted 2014 June 3. Received 2014 June 3; in original form 2014 April 23
ABSTRACT
The existence of an outer planet beyond Pluto has been a matter of debate for decades and the
recent discovery of 2012 VP113 has just revived the interest for this controversial topic. This Sedna-like object has the most distant perihelion of any known minor planet and the value of its argument of perihelion is close to 0◦. This property appears to be shared by almost all known asteroids with semimajor axis greater than 150 au and perihelion greater than 30 au (the extreme trans-Neptunian objects or ETNOs), and this fact has been interpreted as evidence for the existence of a super-Earth at 250 au. In this scenario, a population of stable asteroids may be shepherded by a distant, undiscovered planet larger than the Earth that keeps the value of their argument of perihelion librating around 0◦as a result of the Kozai mechanism. Here, we study the visibility of these ETNOs and confirm that the observed excess of objects reaching perihelion near the ascending node cannot be explained in terms of any observational biases.
This excess must be a true feature of this population and its possible origin is explored in the framework of the Kozai effect. The analysis of several possible scenarios strongly suggest that at least two trans-Plutonian planets must exist.
Key words: celestialmechanics – minor planets, asteroids: general – minor planets, asteroids:
individual: 2012 VP113 – planets and satellites: individual: Neptune.
Trans-Neptunian objects suggest that there are more dwarf planets in our solar system
Date:
January 15, 2015
Source:
Plataforma SINC
Summary:
There could be at least two unknown dwarf planets hidden well beyond Pluto, whose gravitational influence determines the orbits and strange distribution of objects observed beyond Neptune. This has been revealed by numerical calculations. If confirmed, this hypothesis would revolutionize solar system models. Astronomers have spent decades debating whether some dark trans-Plutonian planet remains to be discovered within the solar system. According to scientists not only one, but at least two planets must exist to explain the orbital behavior of extreme trans-Neptunian objects.
Astronomers have spent decades debating whether some dark trans-Plutonian planet remains to be discovered within the solar system. According to the calculations of scientists at the Complutense University of Madrid (UCM, Spain) and the University of Cambridge (United Kingdom) not only one, but at least two planets must exist to explain the orbital behaviour of extreme trans-Neptunian objects (ETNO).
....
Yet what is observed in a dozen of these bodies is quite different: the values of the semi-major axis are very disperse (between 150 AU and 525 AU), the average inclination of their orbit is around 20° and argument of Perihelion -31°, without appearing in any case close to 180°.
"This excess of objects with unexpected orbital parameters makes us believe that some invisible forces are altering the distribution of the orbital elements of the ETNO and we consider that the most probable explanation is that other unknown planets exist beyond Neptune and Pluto," explains Carlos de la Fuente Marcos, scientist at the UCM and co-author of the study. "The exact number is uncertain, given that the data that we have is limited, but our calculations suggest that there are at least two planets, and probably more, within the confines of our solar system," adds the astrophysicist.
...
There is a lot more evidence