Rotational Synchronization May Enhance Habitability for Circumbinary Planets: Kepler Binary Case Studies

  title={Rotational Synchronization May Enhance Habitability for Circumbinary Planets: Kepler Binary Case Studies},
  author={P. Mason and J. Zuluaga and J. Clark and Pablo A. Cuartas},
  journal={arXiv: Earth and Planetary Astrophysics},
We report a mechanism capable of reducing (or increasing) stellar activity in binary stars, thereby potentially enhancing (or destroying) circumbinary habitability. In single stars, stellar aggression towards planetary atmospheres causes mass-loss, which is especially detrimental for late-type stars, because habitable zones are very close and activity is long lasting. In binaries, tidal rotational breaking reduces magnetic activity, thus reducing harmful levels of XUV radiation and stellar mass… Expand

Figures from this paper

The Habitability of Circumbinary Planets: Stellar and Planetary Interaction
Efforts to study the potential habitability of planets around moderately close binaries are presented. With this aim stellar and planetary interactions are investigated, focusing on their impact onExpand
Circumbinary habitability niches
Abstract Binaries could provide the best niches for life in the Galaxy. Although counterintuitive, this assertion follows directly from stellar tidal interaction theory and the evolution of lowerExpand
Constraining the Radiation and Plasma Environment of the Kepler Circumbinary Habitable Zone Planets
The discovery of many planets using the Kepler telescope includes ten planets orbiting eight binary stars. Three binaries, Kepler-16, Kepler-47, and Kepler-453, have at least one planet in theExpand
Colliding Winds in Low-Mass Binary Star Systems: wind interactions and implications for habitable planets
Context. In binary star systems, the winds from the two components impact each other, leading to strong shocks and regions of enhanced density and temperature. Potentially habitable circumbinaryExpand
Surface flux patterns on planets in circumbinary systems and potential for photosynthesis
Abstract Recently, the Kepler Space Telescope has detected several planets in orbit around a close binary star system. These so-called circumbinary planets will experience non-trivial spatial andExpand
Formation of Earth-sized planets within the Kepler-1647 system habitable zone
The Kepler-1647 is a binary system with two Sun-type stars (≈1.22 and ≈0.97 M ). It has the most massive circumbinary planet (≈1.52 MJup) with the longest orbital period (≈ 1,107.6 days) detected byExpand
Habitable Zone Boundaries for Circumbinary Planets
We use a one-dimensional (1-D) cloud-free climate model to estimate habitable zone (HZ) boundaries for terrestrial planets of masses 0.1 M$_{E}$ and 5 M$_{E}$ around circumbinary stars of variousExpand
Evaluating galactic habitability using high-resolution cosmological simulations of galaxy formation
Abstract We present the first model that couples high-resolution simulations of the formation of local group galaxies with calculations of the galactic habitable zone (GHZ), a region of space whichExpand
Kepler 453 b - The 10th Kepler transiting circumbinary planet
We present the discovery of Kepler-453 b, a 6.2 R⊕ planet in a low-eccentricity, 240.5 day orbit about an eclipsing binary. The binary itself consists of a 0.94 and 0.195 M⊙ pair of stars with anExpand
Habitability properties of circumbinary planets
It is shown that several habitability conditions (in fact, at least seven such conditions) appear to be fulfilled automatically by circumbinary planets of main-sequence stars (CBP-MS), whereas onExpand


Transiting circumbinary planets Kepler-34 b and Kepler-35 b
The observed rate of circumbinary planets in this sample implies that more than ∼1% of close binary stars have giant planets in nearly coplanar orbits, yielding a Galactic population of at least several million. Expand
Kepler-47: A Transiting Circumbinary Multiplanet System
The detection of Kepler-47 establishes that close binary stars can host complete planetary systems, and reveals two small planets orbiting a pair of two low-mass stars. Expand
Habitable zones around main sequence stars.
The results suggest that mid-to-early K stars should be considered along with G stars as optimal candidates in the search for extraterrestrial life. Expand
Habitable Zones Around Main-Sequence Stars: New Estimates
Identifying terrestrial planets in the habitable zones (HZs) of other stars is one of the primary goals of ongoing radial velocity (RV) and transit exoplanet surveys and proposed future spaceExpand
On the Habitable Zones of Circumbinary Planetary Systems
The effect of the stellar flux on exoplanetary systems is becoming an increasingly important property as more planets are discovered in the habitable zone (HZ). The Kepler mission has recentlyExpand
Atmospheric mass loss by stellar wind from planets around main sequence M stars
Abstract We present an analytic model for the interaction between planetary atmospheres and stellar winds from main sequence M stars, with the purpose of obtaining a quick test-model that estimatesExpand
Exoplanetary radio emission under different stellar wind conditions
Abstract Radio emission from extrasolar giant planets in close orbits around their host star is an active field of research, including both observational efforts and theoretical work aiming atExpand
Magnetic protection of potentially habitable planets plays a central role in determining their actual habitability and/or the chances of detecting atmospheric biosignatures. Here we develop a thermalExpand
Planet Hunters: A Transiting Circumbinary Planet in a Quadruple Star System
We report the discovery and confirmation of a transiting circumbinary planet (PH1b) around KIC 4862625, an eclipsing binary in the Kepler field. The planet was discovered by volunteers searching theExpand
Kepler-16: A Transiting Circumbinary Planet
The detection of a planet whose orbit surrounds a pair of low-mass stars, comparable to Saturn in mass and size and on a nearly circular 229-day orbit around its two parent stars, suggests that the planet formed within a circumbinary disk. Expand