Updated Studies on Exomoons in the HD 23079 System

Abstract

We re-evaluate the outer edge of orbital stability for possible exomoons orbiting the radial velocity planet discovered in the HD 23079 system. In this system, a solar-type star hosts a Jupiter-mass planet in a nearly circular orbit in the outer stellar habitable zone. The outer stability limit of exomoons is deduced using $N$-body and tidal migration simulations considering a large range of initial conditions, encompassing both prograde and retrograde orbits. In particular, we extend previous works by evaluating many values in the satellite mean anomaly to identify and exclude regions of quasi-stability. Future observations of this system can make use of our results through a scale factor relative to the currently measured minimum mass. Using a constant time lag tidal model (Hut 1981), we find that plausible tidal interactions within the system are insufficient to induce significant outward migration toward the theoretical stability limit. While current technologies are incapable of detecting exomoons in this system, we comment on the detectability of putative moons through Doppler monitoring within direct imaging observations in view of future research capacities.

arXiv comment10 pages, 5 figures, 2 tables; accepted for publication in PASA

References in corpus (64)

• Habitable Zones Around Main-Sequence Stars: New Estimates
• REBOUND: An open-source multi-purpose N-body code for collisional dynamics
• Planetary Radii across Five Orders of Magnitude in Mass and Stellar Insolation: Application to Transits
• Evolution of the Solar Activity over Time and Effects on Planetary Atmospheres: I. High-energy Irradiances (1-1700 A)
• IAS15: A fast, adaptive, high-order integrator for gravitational dynamics, accurate to machine precision over a billion orbits
• Habitable Zones Around Main-Sequence Stars: Dependence on Planetary Mass
• Probabilistic Forecasting of the Masses and Radii of Other Worlds
• Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 parsecs: The Southern Sample
• Tidal dissipation in stars and giant planets
• Is tidal heating sufficient to explain bloated exoplanets? Consistent calculations accounting for finite initial eccentricity
• Transit timing effects due to an exomoon
• A Circumplanetary Disk Around PDS70c
• How to Characterize Habitable Worlds and Signs of Life
• Stability of Satellites Around Close-in Extrasolar Giant Planets
• Tidal Locking of Habitable Exoplanets
• XHIP: An Extended Hipparcos Compilation
• Transit timing effects due to an exomoon II
• The Hunt for Exomoons with Kepler (HEK): I. Description of a New Observational Project
• Evidence for a Large Exomoon Orbiting Kepler-1625b
• Tidal obliquity evolution of potentially habitable planets
• Irregular Satellites of the Planets: Products of Capture in the Early Solar System
• Cool Jupiters greatly outnumber their toasty siblings: Occurrence rates from the Anglo-Australian Planet Search
• Exomoon habitability constrained by illumination and tidal heating
• Revising the ages of planet-hosting stars
• Resonance Overlap is Responsible for Ejecting Planets in Binary Systems
• On the Terminal Rotation Rates of Giant Planets
• On the Ages of Exoplanet Host Stars
• Direct detection of exoplanets in the 3 -- 10 micron range with E-ELT/METIS
• The Hunt for Exomoons with Kepler (HEK): II. Analysis of Seven Viable Satellite-Hosting Planet Candidates
• The Hunt for Exomoons with Kepler (HEK): V. A Survey of 41 Planetary Candidates for Exomoons
• Detecting companions to extrasolar planets using mutual events
• The distribution of exoplanet masses
• Stability of prograde and retrograde planets in circular binary systems
• The Hunt for Exomoons with Kepler (HEK): IV. A Search for Moons around Eight M-Dwarfs
• Outcomes and Duration of Tidal Evolution in a Star-Planet-Moon System
• The Hunt for Exomoons with Kepler (HEK): III. The First Search for an Exomoon around a Habitable-Zone Planet
• Generalized Hill-Stability Criteria for Hierarchical Three-Body Systems at Arbitrary Inclinations
• Detecting extrasolar moons akin to solar system satellites with an orbital sampling effect
• Post-Capture Evolution of Potentially Habitable Exomoons
• On the detection of Exomoons: A search in Kepler data for the orbital sampling effect and the scatter peak
• Two extra-solar planets from the Anglo-Australian Planet Search
• Detection of Exomoons Through Observation of Radio Emissions
• The Center of Light: Spectroastrometric Detection of Exomoons
• Signals of exomoons in averaged light curves of exoplanets
• Resonant Removal of Exomoons During Planetary Migration
• Orbital Stability of Circumstellar Planets in Binary Systems
• Stability of Satellites in Closely Packed Planetary Systems
• Detecting Exomoons Via Doppler Monitoring of Directly Imaged Exoplanets
• Orbital Stability of Exomoons and Submoons with Applications to Kepler 1625b-I
• On the radio detection of multiple-exomoon systems due to plasma torus sharing
• Case Studies of Habitable Trojan Planets in the System of HD 23079
• The Exomoon Corridor: Half of all exomoons exhibit TTV frequencies within a narrow window due to aliasing
• Exoplanets Torqued by the Combined Tides of a Moon and Parent Star
• Catching a planet: A tidal capture origin for the exomoon candidate Kepler 1625b I
• Modeling the Orbital Sampling Effect of Extrasolar Moons
• Application of Orbital Stability and Tidal Migration Constraints for Exomoon Candidates
• Dynamical tides in Jupiter as revealed by Juno
• The Possible Moon of Kepler-90g is a False Positive
• Secular Orbit Evolution in Systems with a Strong External Perturber - A Simple and Accurate Model
• Prospecting for exo-Earths in multiple planet systems with a gas giant
• Stable habitable zones of single Jovian planet systems
• On the Possibility of Habitable Moons in the System of HD 23079: Results from Orbital Stability Studies
• Impossible moons -- Transit timing effects that cannot be due to an exomoon
• Exomoons in Systems with a Strong Perturber: Applications to $\alpha$ Cen AB