منابع مشابه
Solar Obliquity Induced by Planet Nine
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 have recently shown that the physical alignment of distant Kuiper Belt orbits can be expla...
متن کاملGeneration of Highly Inclined Trans-neptunian Objects by Planet Nine
The trans-Neptunian region of the solar system exhibits an intricate dynamical structure, much of which can be explained by an instability-driven orbital history of the giant planets. However, the origins of a highly inclined, and in certain cases retrograde, population of trans-Neptunian objects remain elusive within the framework of this evolutionary picture. In this work, we show that the ex...
متن کاملObservational Constraints on the Orbit and Location of Planet Nine in the Outer Solar System
We use an extensive suite of numerical simulations to constrain the mass and orbit of Planet Nine, the recently proposed perturber in a distant eccentric orbit in the outer solar system. We compare our simulations to the observed population of aligned eccentric high semimajor axis Kuiper belt objects (KBOs) and determine which simulation parameters are statistically compatible with the observat...
متن کاملConfirmation of the Planet Hypothesis for the Long-period Radial Velocity Variations of β Geminorum
Our aim is to confirm the nature of the long period radial velocity measurements for β Gem first found by Hatzes & Cochran (1993). We present precise stellar radial velocity measurements for the K giant star β Gem spanning over 25 years. An examination of the Ca II K emission, spectral line shapes from high resolution data (R = 210,000), and Hipparcos photometry was also made to discern the tru...
متن کاملThe planet formation hypothesis: Why are the Solar System planets different in their chemical compositions?
From the late 1980s, an opinion exists that the SS arose as a result of interaction between a supernova and a presolar gas–dust cloud. Such a hypothesis is a result of detection of small grains of different chemical compositions with isotopic anomalies in the fine-grained matrix of some primitive meteorites [1]. A number of the researchers believe that the anomalies result from the presolar ori...
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ژورنال
عنوان ژورنال: Physics Reports
سال: 2019
ISSN: 0370-1573
DOI: 10.1016/j.physrep.2019.01.009