The Possibility of Mirror Planet as Planet Nine in Solar System
Pei Wang (1, 2), Yu Chen Tang (1, 2), Lei Zu (1, 2), Yuan Yuan Chen, (3, 4, 5), Lei Feng (1, 6) ((1) Key Laboratory of Dark Matter, Space, Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing,, China (2) School of Astronomy, Space Science

TL;DR
This paper explores the hypothesis that a mirror planet, potentially captured or formed in the solar system, could explain the anomalies attributed to Planet Nine, offering a dark matter-based alternative with unique observational signatures.
Contribution
It introduces the concept of a mirror planet as a candidate for Planet Nine, linking dark matter physics with planetary astronomy and proposing observational methods based on gravitational effects.
Findings
Mirror planet could explain orbital anomalies of trans-Neptunian objects.
Mirror planet may have faint electromagnetic signatures or be undetectable electromagnetically.
Gravitational effects could reveal the presence of a mirror planet.
Abstract
A series of dynamical anomalies in the orbits of distant trans-Neptunian objects points to a new celestial body (usually named Planet Nine) in the solar system. In this draft, we point out that a mirror planet captured from the outer solar system or formed in the solar system is also a possible candidate. The introduction of the mirror matter model is due to an unbroken parity symmetry and is a potential explanation for dark matter. This mirror planet has null or fainter electromagnetic counterparts with a smaller optical radius and might be explored through gravitational effects.
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Taxonomy
TopicsAstro and Planetary Science · Stellar, planetary, and galactic studies · Planetary Science and Exploration
