Statistical properties of habitable zones in stellar binary systems

Abstract

Observations of exoplanets and protoplanetary disks show that binary stellar systems can host planets in stable orbits. Given the high binary fraction among stars, the contribution of binary systems to Galactic habitability should be quantified. Therefore, we have designed a suite of Monte Carlo experiments aimed at generating large (up to $10^6$) samples of binary systems. For each system randomly extracted we calculate the intersection between the radiative habitable zones and the regions of dynamical stability using published empirical formulations that account for the dynamical and radiative parameters of both stars of the system. We also consider constraints on planetary formation in binary systems. We find that the habitability properties of circumstellar and circumbinary regions are quite different and complementary with respect to the binary system parameters. Circumbinary HZs are, generally, rare ($\simeq 4\%$) in the global population of binary systems, even if they are common for stellar separations $\lesssim 0.2$ AU. Conversely, circumstellar HZs are frequent ($\ge 80\%$) in the global population, but are rare for stellar separations $\lesssim 1$ AU. These results are robust against variations of poorly constrained binary systems parameters. We derive ranges of stellar separations and stellar masses for which HZs in binary systems can be wider than the HZs around single stars; the widening can be particularly strong (up to one order of magnitude) for circumstellar regions around M-type secondary stars. The comparison of our statistical predictions with observational surveys shows the impact of selection effects on the habitability properties of detected exoplanets in binary systems.

arXiv comment39 pages and 12 figures. Accepted for publication in ApJ

References in corpus (82)

• Galactic Stellar and Substellar Initial Mass Function
• PARSEC: stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code
• Gaia Data Release 2: The astrometric solution
• A Survey of Stellar Families: Multiplicity of Solar-Type Stars
• Habitable Zones Around Main-Sequence Stars: New Estimates
• Stellar Multiplicity
• Mind your Ps and Qs: the Interrelation between Period (P) and Mass-ratio (Q) Distributions of Binary Stars
• Long-Term Stability of Planets in Binary Systems
• Kepler-16: A Transiting Circumbinary Planet
• Habitable Zones Around Main-Sequence Stars: Dependence on Planetary Mass
• Habitable planets around the star Gl 581?
• The Transiting Circumbinary Planets Kepler-34 and Kepler-35
• Kepler Eclipsing Binary Stars. VII. The Catalog of Eclipsing Binaries Found in the Entire Kepler Data-Set
• Kepler-47: A Transiting Circumbinary Multi-Planet System
• Debris disks in main sequence binary systems
• From binaries to multiples II: hierarchical multiplicity of F and G dwarfs
• A Planetary Companion to gamma Cephei A
• The Impact of Stellar Multiplicity on Planetary Systems, I.: The Ruinous Influence of Close Binary Companions
• The Neptune-Sized Circumbinary Planet Kepler-38b
• Kepler-413b: a slightly misaligned, Neptune-size transiting circumbinary planet
• Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems
• The Dynamics and Stability of Circumbinary Orbits
• Extrasolar planets in stellar multiple systems
• KIC 9632895 - The 10th Kepler Transiting Circumbinary Planet
• Terrestrial Planet Formation Around Individual Stars Within Binary Star Systems
• The primordial binary population II: Recovering the binary population for intermediate mass stars in Sco OB2
• Kepler-1647b: the largest and longest-period Kepler transiting circumbinary planet
• The Degree of Alignment Between Circumbinary Disks and Their Binary Hosts
• Terrestrial Planet Formation Surrounding Close Binary Stars
• Lucky Imaging survey for southern M dwarf binaries
• Calculating the Habitable Zone of Binary Star Systems I: S-Type Binaries
• TOI-1338: TESS' First Transiting Circumbinary Planet
• Calculating the Habitable Zone of Binary Star Systems II: P-Type Binaries
• Gas flow and accretion via spiral streamers and circumstellar disks in a young binary protostar
• The multiplicity of exoplanet host stars - New low-mass stellar companions of the exoplanet host stars HD125612 and HD212301
• SOPHIE velocimetry of Kepler transit candidates XII. KOI-1257 b: a highly eccentric three-month period transiting exoplanet
• The PHASES Differential Astrometry Data Archive. V. Candidate Substellar Companions to Binary Systems
• The ELODIE survey for northern extra-solar planets IV. HD196885, a close binary star with a 3.7-year planet
• New prospects for observing and cataloguing exoplanets in well detached binaries
• On the Likelihood of Planet Formation in Close Binaries
• Stability Limits of Circumbinary Planets: Is There a Pile-up in the Kepler CBPs?
• On the Habitable Zones of Circumbinary Planetary Systems
• No circumbinary planets transiting the tightest Kepler binaries - a possible fingerprint of a third star
• Planet formation in stellar binaries II: overcoming the fragmentation barrier in alpha Centauri and gamma Cephei-like systems
• The BEBOP radial-velocity survey for circumbinary planets I. Eight years of CORALIE observations of 47 single-line eclipsing binaries and abundance constraints on the masses of circumbinary planets
• Planet formation in binaries: dynamics of planetesimals perturbed by the eccentric protoplanetary disk and the secondary
• The SUPERWIDE Catalog: A Catalog of 99,203 Wide Binaries Found in Gaia and Supplemented by the SUPERBLINK High Proper Motion Catalog
• Low-mass Binaries in the Hyades - A scarcity of brown dwarfs
• An Analytic Method to determine Habitable Zones for S-Type Planetary Orbits in Binary Star Systems
• The habitable zone of Earth-like planets with different levels of atmospheric pressure
• Robo-AO Kepler Planetary Candidate Survey III: Adaptive Optics Imaging of 1629 Kepler Exoplanet Candidate Host Stars
• Planet formation in Binaries
• Planet formation in stellar binaries I: planetesimal dynamics in massive protoplanetary disks
• S-Type and P-Type Habitability in Stellar Binary Systems: A Comprehensive Approach. I. Method and Applications
• On the Fate of Unstable Circumbinary Planets: Tatooine's Close Encounters with a Death Star
• Analytic orbit propagation for transiting circumbinary planets
• Orbital Stability of Circumstellar Planets in Binary Systems
• Kepler-1661 b: A Neptune-sized Kepler Transiting Circumbinary Planet around a Grazing Eclipsing Binary
• S-Type and P-Type Habitability in Stellar Binary Systems: A Comprehensive Approach. II. Elliptical Orbits
• A dynamical stability study of Kepler Circumbinary Planetary systems with one planet
• Modeling the surface temperature of Earth-like planets
• Assessing Circumbinary Habitable Zones using Latitudinal Energy Balance Modelling
• Chaotic dynamics of the planet in HD 196885 AB
• Constraining the Radiation and Plasma Environment of the Kepler Circumbinary Habitable Zone Planets
• On The Lack of Circumbinary Planets Orbiting Isolated Binary Stars
• Milankovitch Cycles of Terrestrial Planets in Binary Star Systems
• Placing Limits On The Transit Timing Variations Of Circumbinary Exoplanets
• Rotational Synchronization May Enhance Habitability for Circumbinary Planets: Kepler Binary Case Studies
• An ablating super-Earth in an eccentric binary from the Dispersed Matter Planet Project
• Circumbinary Habitability Niches
• Quantitative estimates of the surface habitability of Kepler-452b
• From climate models to planetary habitability: temperature constraints for complex life
• Examining Tatooine: Atmospheric Models of Neptune-Like Circumbinary Planets
• Constraining the magnitude of climate extremes from time-varying instellation on a circumbinary terrestrial planet
• Habitability properties of circumbinary planets
• Habitable Zone Boundaries for Circumbinary Planets
• Obliquity Evolution of Circumstellar Planets in Sun-like Stellar Binaries
• Earth-size planet formation in the habitable zone of circumbinary stars
• Eccentricity generation in hierarchical triple systems: the planetary regime
• Fitting Formulae and Constraints for the Existence of S-type and P-type Habitable Zones
• Effects of Flux Variation on the Surface Temperatures of Earth-like Circumbinary Planets
• Circumbinary Planets -- The Next Steps

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• Eta-Earth Revisited II: Deriving a Maximum Number of Earth-like Habitats in the Galactic Disk
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• Orbits of the TOI-1338 and TIC-172900988 systems