We measure exoplanet occurrence rate as a function of isochrone and gyrochronology ages using confirmed and candidate planets identified in Q1-17 DR25 Kepler data.
Stellar Cartography
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release, Stellar Cartography
Have We Discovered The Smallest Extra-solar Planet?
Using pulsar timing techniques at the decimeter radio telescope of the Nançay Radio Observatory, an international team comprising researchers from CNRS, Observatoire de Paris, LPC2E in Orléans, the Max Planck […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Status Report, Stellar Cartography
Near-circular Orbits for Planets Around M/K-type Stars With Earth-like Sizes and Instellations
Recent advances have enabled the discovery of a population of potentially Earth-like planets, yet their orbital eccentricity, which governs their climate and provides clues about their origin and dynamical history, […]
Posted inAstrogeology, Astronomy & Telescopes, Exoplanets, -moons, -comets, Status Report, Stellar Cartography
Where in the Milky Way Do Exoplanets Preferentially Form?
Exoplanets are detected around stars of different ages and birthplaces within the Galaxy. The aim of this work is to infer the Galactic birth radii (rbirth) of stars and, consequently, […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Status Report, Stellar Cartography
Planet Formation And Long-term Stability In A Very Eccentric Stellar Binary
Planets orbiting one of the two stars in a binary are vulnerable to gravitational perturbations from the other star.
Posted inAstrochemistry, Astronomy & Telescopes, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, Press Release, Stellar Cartography
Stellar Cartography: Intricate Layers of Supernova Remnant Cassiopeia A
Once upon a time, the core of a massive star collapsed, creating a shockwave that blasted outward, ripping the star apart as it went. When the shockwave reached the star’s […]
Posted inAI - Data - Apps - Cybernetics, Astrogeology, Exoplanets, -moons, -comets, Gas Giants, Status Report, Stellar Cartography
On The Robustness Of Exoplanet Atmospheric Detections: Insights From Extensive Simulations
The classical picture of our Solar System being the archetypal outcome of planet formation has been rendered obsolete by the astonishing diversity of extrasolar-system architectures. From rare hot-Jupiters to abundant […]
Posted inBiogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Status Report, Stellar Cartography
Planetary Rhythms: Synchronous Circulation On Variably Irradiated Asynchronous Planets
Tidal locking of planets to their host stars results in an atmospheric circulation with a hotspot fixed to the frame of reference of the planet. On the other hand, asynchronously […]
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Habitable Zones, Press Release, Radiation, Space Weather & Heliophysics, Stellar Cartography
Studying Wolf 359: Habitable Exoplanets Need To Be Prepared For Extreme Space Weather
Planets around other stars need to be prepared for extreme weather conditions, according to a new study from NASA’s Chandra X-ray Observatory and ESA’s (European Space Agency’s) XMM-Newton that examined […]
Posted inAstronomy & Telescopes, Brown Dwarfs, Exoplanets, -moons, -comets, Exploration Gear & Tech, Gas Giants, Status Report, Stellar Cartography
The TESS-Keck Survey XXIV: Outer Giants May be More Prevalent in the Presence of Inner Small Planets
We present the results of the Distant Giants Survey, a three-year radial velocity (RV) campaign to search for wide-separation giant planets orbiting Sun-like stars known to host an inner transiting […]