What if Planet 9 is a Primordial Black Hole?

Abstract

We highlight that the anomalous orbits of Trans-Neptunian Objects (TNOs) and an excess in microlensing events in the 5-year OGLE dataset can be simultaneously explained by a new population of astrophysical bodies with mass several times that of Earth ($M_{\oplus }$). We take these objects to be primordial black holes (PBHs) and point out the orbits of TNOs would be altered if one of these PBHs was captured by the Solar System, inline with the Planet 9 hypothesis. Capture of a free floating planet is a leading explanation for the origin of Planet 9 and we show that the probability of capturing a PBH instead is comparable. The observational constraints on a PBH in the outer Solar System significantly differ from the case of a new ninth planet. This scenario could be confirmed through annihilation signals from the dark matter microhalo around the PBH.

arXiv comment7 pages, 1 exact scale illustration of a 5 Earth mass black hole

References in corpus (48)

• Fermi Large Area Telescope Fourth Source Catalog
• Freeze-In Production of FIMP Dark Matter
• PPPC 4 DM ID: A Poor Particle Physicist Cookbook for Dark Matter Indirect Detection
• Unbound or Distant Planetary Mass Population Detected by Gravitational Microlensing
• Origin of the Structure of the Kuiper Belt during a Dynamical Instability in the Orbits of Uranus and Neptune
• Earth-mass dark-matter haloes as the first structures in the early Universe
• Evidence for a Distant Giant Planet in the Solar System
• Constraints on Earth-mass primordial black holes from OGLE 5-year microlensing events
• The Four Basic Ways of Creating Dark Matter Through a Portal
• No large population of unbound or wide-orbit Jupiter-mass planets
• The first WIMPy halos
• Discovery of a candidate inner Oort cloud planetoid
• UltraViolet Freeze-in
• A New Signature of Dark Matter Annihilations: Gamma-Rays from Intermediate-Mass Black Holes
• The Planet Nine Hypothesis
• Gamma-ray Constraints on Decaying Dark Matter and Implications for IceCube
• The Evidence for Slow Migration of Neptune from the Inclination Distribution of Kuiper Belt Objects
• Dark Matter and Fundamental Physics with the Cherenkov Telescope Array
• Primordial Black Holes from Inflation with Nonminimal Derivative Coupling
• WIMPs and stellar-mass primordial black holes are incompatible
• Primordial Black Holes as Dark Matter: Almost All or Almost Nothing
• Dark Matter Complementarity and the Z${}^{\prime }$ Portal
• Asymmetric Dark Matter Stars
• The Price of Tiny Kinetic Mixing
• Thermal and non-thermal production of dark matter via Z'-portal(s)
• Primordial black hole tower: Dark matter, earth-mass, and LIGO black holes
• Remnants of dark matter clumps
• Let there be Light Dark Matter: The gauged $U(1{)}_{L_{\mu }-L_{\tau }}$ case
• Dark Matter Density Spikes around Primordial Black Holes
• A new probe of the small-scale primordial power spectrum: astrometric microlensing by ultracompact minihalos
• Novel Constraints on Mixed Dark-Matter Scenarios of Primordial Black Holes and WIMPs
• Two new free-floating or wide-orbit planets from microlensing
• Discovery of A New Retrograde Trans-Neptunian Object: Hint of A Common Orbital Plane for Low Semi-Major Axis, High Inclination TNOs and Centaurs
• A New High Perihelion Inner Oort Cloud Object: 2015 TG387
• Interaction Cross Sections and Survival Rates for Proposed Solar System Member Planet Nine
• Is there an exoplanet in the Solar System?
• Impact of Primordial Ultracompact Minihaloes on the Intergalactic Medium and First Structure Formation
• How To Discover Mirror Stars
• Annihilation Signatures of Hidden Sector Dark Matter Within Early-Forming Microhalos
• Observational bias and the clustering of distant eccentric Kuiper belt objects
• Probing the freeze-in mechanism in dark matter models with $U(1{)}^{\prime }$ gauge extensions
• Shepherding in a Self-Gravitating Disk of Trans-Neptunian Objects
• Making Planet Nine: Pebble Accretion at 250--750 AU in a Gravitationally Unstable Ring
• Was Planet 9 captured in the Sun's natal star-forming region?
• Evolution and Magnitudes of Candidate Planet Nine
• Searching for Planet Nine with Coadded WISE and NEOWISE-Reactivation Images
• Capture of free-floating planets by stellar systems
• Blackbody Radiation from Isolated Neptunes

Cited by in corpus (68)

• Constraints on Primordial Black Holes
• Gravitational Waves Induced by Scalar Perturbations with a Lognormal Peak
• Primordial black holes and secondary gravitational waves from k/G inflation
• Gravitational wave constraints on the primordial black hole dominated early universe
• The Gravitational-Wave Physics II: Progress
• All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO and Advanced Virgo O3 data
• Primordial black holes in peak theory with a non-Gaussian tail
• Primordial black holes and secondary gravitational waves from inflationary model with a non-canonical kinetic term
• Dark Matter and the XENON1T electron recoil excess
• Primordial black hole constraints with Hawking radiation -- a review
• A sensitive search for wormholes
• Primordial black holes and oscillating gravitational waves in slow-roll and slow-climb inflation with an intermediate non-inflationary phase
• Probing planetary-mass primordial black holes with continuous gravitational waves
• Primordial black holes and secondary gravitational waves from natural inflation
• A manifestly covariant theory of multifield stochastic inflation in phase space: solving the discretisation ambiguity in stochastic inflation
• Primordial Black Hole Formation in Non-Minimal Curvaton Scenario
• Primordial black holes and scalar-induced gravitational waves from the generalized Brans-Dicke theory
• Constraints on planetary and asteroid-mass primordial black holes from continuous gravitational-wave searches
• Constraints On Scalar-Induced Gravitational Waves Up To Third Order From Joint Analysis of BBN, CMB, And PTA Data
• Primordial black holes and secondary gravitational waves from chaotic inflation
• Exploring the NANOGrav Signal and Planet-mass Primordial Black Holes through Higgs Inflation
• Primordial black holes and secondary gravitational waves from string inspired general no-scale supergravity
• NANOGrav signal and LIGO-Virgo Primordial Black Holes from the Higgs field
• Celestial Objects as Strongly-Interacting Non-Annihilating Dark Matter Detectors
• Limits on planetary-mass primordial black holes from the OGLE high-cadence survey of the Magellanic Clouds
• Primordial black holes and induced gravitational waves from double-pole inflation
• Lensing constraints on ultradense dark matter halos
• Novel constraints on fifth forces and ultralight dark sector with asteroidal data
• NANOGrav Hints on Planet-Mass Primordial Black Holes
• Press-Schechter primordial black hole mass functions and their observational constraints
• Injection of Inner Oort Cloud Objects Into the Distant Kuiper Belt by Planet Nine
• Is GW170817 a Multimessenger Neutron Star-Primordial Black Hole Merger?
• STOLAS: STOchastic LAttice Simulation of cosmic inflation
• Gravitational Waves and Possible Fast Radio Bursts from Axion Clumps
• New mechanism for primordial black hole formation from the QCD axion
• Resonant amplification of curvature perturbations in inflation model with periodical derivative coupling
• Dark Exoplanets
• Small free field inflation in higher curvature gravity
• Can Planet 9 be an Axion Star?
• On the origin of extreme trans-Neptunian objects within Modified Newtonian Dynamics
• Machine Learning for Searching the Dark Energy Survey for Trans-Neptunian Objects
• Detecting Planet 9 via Hawking radiation
• A candidate location for Planet Nine from an interstellar meteoroid: The messenger hypothesis
• Dark Fluxes from Accreting Black Holes and Direct Detections
• The Brute-Force Search for Planet Nine
• Dynamical model for primordial black holes
• Searching for a Black Hole in the Outer Solar System
• Improved Constraints on Dark Matter Annihilations Around Primordial Black Holes
• Dancing with invisible partners: Three-body exchanges with primordial black holes
• Earth-mass primordial black hole mergers as sources for non-repeating FRBs
• Non-minimally coupled electromagnetic fields and observable implications for primordial black holes
• Different effects of the Lorentz and Gaussian bump functions on the formation of primordial black holes and secondary gravitational waves
• What if planet 9 has satellites?
• Detection of dilute axion stars with stimulated decay
• On the waveform of the scalar induced gravitational waves
• Detecting dilute axion stars constrained by fast radio bursts in the Solar System via stimulated decay
• Prospects for localising Planet 9 with a future Uranus mission
• Capture of the free-floating planets and primordial black holes into protostellar clouds
• A Far-Infrared Search for Planet Nine Using AKARI All-Sky Survey
• Constraining the Coexistence of Freeze-in Dark Matter and Primordial Black Holes
• Primordial black holes from collapsing antimatter
• Probing the equation of state of neutron stars with captured primordial black holes
• Gravitational waves from sub-solar mass primordial black holes
• Gaia's faintest stars
• A search for Planet Nine with small spacecraft:Three-body, post-Newtonian, non-gravitational, planetary and Kuiper Belt effects
• Dark matter heating of Planet 9, and its observational implications
• A planet or primordial black hole in the outer region of the Solar system and the dust flow near Earth orbit
• Limits on the Detection of Planet Nine in the Dark Energy Survey