The binary mass ratios of circumbinary planet hosts
arXiv:1904.04832 · doi:10.1093/mnras/stz959
Abstract
Almost a dozen circumbinary planets have been found transiting eclipsing binaries. For the first time the observational bias of this sample is calculated with respect to the mass ratio of the host binaries. It is shown that the mass ratio affects transit detection in multiple, sometimes subtle ways, through stability and dynamics of orbits, dilution of transit depths and the geometric transit and eclipse probabilities. Surprisingly though, it is found that these effects largely cancel out. Consequently, the transit detections in the Kepler mission are essentially unbiased with respect to mass ratio, and hence likely representative of the true underlying population. It is shown the mass ratio distribution of circumbinary hosts may be the same as field binaries, and hence roughly uniform, but more observations are needed to deduce any subtle differences. These results are discussed in the context of close binary formation and evolution, of which the mass ratio is believed to be a marker, and other surveys for circumbinary planets including TESS and BEBOP.
arXiv commentAccepted at MNRAS. 11 pages, 7 figures
References in corpus (70)
- A Survey of Stellar Families: Multiplicity of Solar-Type Stars
- Shrinking binary and planetary orbits by Kozai cycles with tidal friction
- The PLATO 2.0 Mission
- 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
- Prevalence of Earth-size planets orbiting Sun-like stars
- On detecting terrestrial planets with timing of giant planet transits
- DHP Framework: Digital Health Passports Using Blockchain -- Use case on international tourism during the COVID-19 pandemic
- Kepler-16: A Transiting Circumbinary Planet
- Stellar, brown dwarf and multiple star properties from a radiation hydrodynamical simulation of star cluster formation
- The Transiting Circumbinary Planets Kepler-34 and Kepler-35
- Tertiary companions to close spectroscopic binaries
- 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
- Inverse Dynamical Population Synthesis and Star Formation
- From binaries to multiples II: hierarchical multiplicity of F and G dwarfs
- Mapping the Shores of the Brown Dwarf Desert II: Multiple Star Formation in Taurus-Auriga
- The Dynamical Properties of Stellar Systems in the Galactic Disc
- Interrelated Main-Sequence Mass-Luminosity, Mass-Radius and Mass-Effective Temperature Relations
- Hydrodynamics of circumbinary accretion: Angular momentum transfer and binary orbital evolution
- Mergers and Obliquities in Stellar Triples
- Planet Hunters: A Transiting Circumbinary Planet in a Quadruple Star System
- Search for brown-dwarf companions of stars
- The Neptune-Sized Circumbinary Planet Kepler-38b
- Kepler-413b: a slightly misaligned, Neptune-size transiting circumbinary planet
- Fragmentation of Massive Protostellar Disks
- Two planets orbiting the recently formed post-common envelope binary NN Serpentis
- The formation of close binary systems
- High inclination orbits in the secular quadrupolar three-body problem
- KIC 9632895 - The 10th Kepler Transiting Circumbinary Planet
- Dynamical Formation of Close Binaries During the Pre-main-sequence Phase
- Formation Scenario for Wide and Close Binary Systems
- On the Abundance of Circumbinary Planets
- Binaries Like to be Twins: Implications for Doubly Degenerate Binaries, the Supernova Ia Rate and Other Interacting Binaries
- Kepler-1647b: the largest and longest-period Kepler transiting circumbinary planet
- Planets Transiting Non-Eclipsing Binaries
- A Gas Giant Circumbinary Planet Transiting the F Star Primary of the Eclipsing Binary Star KIC 4862625 and the Independent Discovery and Characterization of the two transiting planets in the Kepler-47 System
- Origin of apparent period variations in eclipsing post-common-envelope binaries
- Resonance Overlap is Responsible for Ejecting Planets in Binary Systems
- Polar alignment of a protoplanetary disk around an eccentric binary
- A Close-up View of the Young Circumbinary Disk HD 142527
- A circumbinary protoplanetary disc in a polar configuration
- Migration and gas accretion scenarios for the Kepler 16, 34 and 35 circumbinary planets
- Modelling Circumbinary Planets: The case of Kepler-38
- A triple origin for the lack of tight coplanar circumbinary planets around short-period binaries
- A Keplerian Circumbinary Disk around the Protobinary System L1551 NE
- Survival of Planets Around Shrinking Stellar Binaries
- Stability Limits of Circumbinary Planets: Is There a Pile-up in the Kepler CBPs?
- Uncovering Circumbinary Planetary Architectural Properties from Selection Biases
- No circumbinary planets transiting the tightest Kepler binaries - a possible fingerprint of a third star
- 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
- The Role of Tidal Interactions in Star Formation
- A Search for Hierarchical Triples using Kepler Eclipse Timing
- Circumbinary planets - why they are so likely to transit
- The Radial Velocity TATOOINE Search for Circumbinary Planets: Planet Detection Limits for a Sample of Double-lined Binary Stars - Initial Results from Keck I/Hires, Shane/CAT/Hamspec and TNG/Sarg Observations
- The First Science Results from SPHERE: Disproving the Predicted Brown Dwarf around V471 Tau
- Mapping the shores of the brown dwarf desert. IV. Ophiuchus
- Assembly of Protoplanetary Disks and Inclinations of Circumbinary Planets
- Binary accretion rates: dependence on temperature and mass-ratio
- Circumbinary planets II - when transits come and go
- Tatooine's Future: The Eccentric Response of Kepler's Circumbinary Planets to Common-Envelope Evolution of their Host Stars
- On The Lack of Circumbinary Planets Orbiting Isolated Binary Stars
- The evolution of the mass ratio of accreting binaries: the role of gas temperature
- Radial Velocities of 41 Kepler Eclipsing Binaries
- Is there a circumbinary planet around NSVS 14256825?
- Disruption of Planetary Orbits Through Evection Resonance with an External Companion: Circumbinary Planets and Multiplanet Systems
- Placing Limits On The Transit Timing Variations Of Circumbinary Exoplanets
- Orbital alignment of circumbinary planets that form in misaligned circumbinary discs: the case of Kepler-413b
- Evolution of binary seeds in collapsing protostellar gas clouds
- On the RZ Draconis Sub-stellar Circumbinary Companions Stability Study of the Proposed Sub-stellar Circumbinary System
Cited by in corpus (12)
- Orbital Evolution of Equal-mass Eccentric Binaries due to a Gas Disk: Eccentric Inspirals and Circular Outspirals
- Parking planets in circumbinary discs
- BEBOP III. Observations and an independent mass measurement of Kepler-16 (AB) b -- the first circumbinary planet detected with radial velocities
- Formation of polar terrestrial circumbinary planets
- The EBLM project. VII. Spin-orbit alignment for the circumbinary planet host EBLM J0608-59 A/TOI-1338 A
- Searching for Small Circumbinary Planets I. The STANLEY Automated Algorithm and No New Planets in Existing Systems
- Terrestrial planet formation in a circumbinary disc around a coplanar binary
- Orbital stability of two circumbinary planets around misaligned eccentric binaries
- Multiple Transits during a Single Conjunction: Identifying Transiting Circumbinary Planetary Candidates from TESS
- Low Spin-Axis Variations of Circumbinary Planets
- The morphology of CSCha circumbinary disk suggesting the existence of a Saturn-mass planet
- BEBOP II: Sensitivity to sub-Saturn circumbinary planets using radial-velocities