We report the detection of a gas-giant planet in orbit around both stars of an eclipsing binary star system that also contains the smaller, inner transiting planet TOI-1338b.
Circumbinary.
Posted inExoplanets, -moons, -comets, Press Release, Science Fiction
How Tatooine Might Have Formed – Twisted Magnetic Fields
Tatooine is real. Well, sort of.
Posted inHabitable Zones, Press Release
Constraining The Magnitude Of Climate Extremes From Time-varying Instellation On A Circumbinary Terrestrial Planet
Planets that revolve around a binary pair of stars are known as circumbinary planets. The orbital motion of the stars around their center of mass causes a periodic variation in […]
Posted inExoplanets, -moons, -comets, Press Release
An Automated Method to Detect Transiting Circumbinary Planets
To date a dozen transiting “Tatooines” or circumbinary planets (CBPs) have been discovered, by eye, in the data from the Kepler mission; by contrast, thousands of confirmed circumstellar planets orbiting […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Press Release
Enlarging Habitable Zones Around Binary Stars In Hostile Environments
Habitable zones are regions around stars where large bodies of liquid water can be sustained on a planet or satellite. As many stars form in binary systems with non-zero eccentricity, […]
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release
On the Fate of Unstable Circumbinary Planets: Tatooine's Close Encounters with a Death Star
Circumbinary planets whose orbits become unstable may be ejected, accreted, or even captured by one of the stars. We quantify the relative rates of these channels, for a binary of […]
Posted inExoplanets, -moons, -comets
Dynamical Stability Study of Kepler Circumbinary Planetary Systems With One Planet
To date, 17 circumbinary planets have been discovered. In this paper, we focus our attention on the stability of the Kepler circumbinary planetary systems with only one planet, i.e. Kepler-16, […]
Posted inExoplanets, -moons, -comets, Habitable Zones, Plant Biology
Surface Flux Patterns on Planets in Circumbinary Systems, and Potential for Photosynthesis
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 and temporal distributions of radiative […]
Posted inExoplanets, -moons, -comets
On the Abundance of Circumbinary Planets
Circumbinary planets have been the subject of much recent work, providing both simulations and new discoveries. We present the first observationally based determination of the rate of occurrence of these […]
Posted inExoplanets, -moons, -comets
Exocomets in the circumstellar gas disk of HD 172555
The source HD172555 is a young A7V star surrounded by a debris disk with a gaseous component. Here, we present the detection of variable absorption features detected simultaneously in the […]