The investigation of exoplanetary habitability is integral to advancing our knowledge of extraterrestrial life potential and detailing the environmental conditions of distant worlds.
Stellar Cartography
Posted inAstronomy & Telescopes, Habitable Zones, Imaging & Spectroscopy, Status Report, Stellar Cartography
X-ray Emission of Nearby Low-mass and Sun-like Stars with Directly Imageable Habitable Zones
Stellar X-ray and UV radiation can significantly affect the survival, composition, and long-term evolution of the atmospheres of planets in or near their host star’s habitable zone (HZ).
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Status Report, Stellar Cartography
Multiplicity Of Stars With Planets In The Solar Neighbourhood
Aims: We intended to quantify the impact of stellar multiplicity on the presence and properties of exoplanets.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release, Radiation, Space Weather & Heliophysics, Stellar Cartography
Sun-like Stars Have Been Found Orbiting Hidden Companions
Most stars in our universe come in pairs. While our own Sun is a loner, many stars like our Sun orbit similar stars, while a host of other exotic pairings […]
Posted inAstronomy & Telescopes, Brown Dwarfs, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Status Report, Stellar Cartography
Predicting The Galactic Population Of Free-floating Planets From Realistic Initial Conditions
We present the first prediction for the mass distribution function of Galactic free-floating planets (FFPs) that aims to accurately include the relative contributions of multiple formation pathways and stellar populations.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Status Report, Stellar Cartography
NASA ROSES-24 Amendment 29: New Opportunity D.20 Exoplanet Mass Measurement Program
D.20 Exoplanet Mass Measurement Program (EMMP)Â solicits investigations that will identify and mitigate systematics that currently limit the precision of radial velocity or astrometry observations from measuring the masses of temperate […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Magnetic Fields, Electromagnetism, bioelectricity,, Status Report, Stellar Cartography
Magnetic Fields of M Dwarfs from the Pleiades Open Cluster
Average magnetic field measurements are presented for 62 M-dwarf members of the Pleiades open cluster, derived from Zeeman-enhanced Fe I lines in the H-band. An MCMC methodology was employed to […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Status Report, Stellar Cartography
A Larger Sample Confirms Small Planets Around Hot Stars Are Misaligned
The distribution of stellar obliquities provides critical insight into the formation and evolution pathways of exoplanets. In the past decade, it was found that hot stars hosting hot Jupiters are […]
Posted inAstronomy & Telescopes, Brown Dwarfs, Exoplanets, -moons, -comets, Interstellar, Press Release, Stellar Cartography
Study Finds Rogue Planets Can Become Permanently Trapped in Sun’s Orbit
Objects from interstellar space, such as rogue planets and asteroids, can become permanently trapped in the Sun’s orbit as a result of the combined gravitational effects of the Sun and […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Status Report, Stellar Cartography
Revising Properties of Planet-Host Binary Systems. IV. The Radius Distribution of Small Planets in Binary Star Systems is Dependent on Stellar Separation
Small planets (Rp≤4R⊕) are divided into rocky super-Earths and gaseous sub-Neptunes separated by a radius gap, but the mechanisms that produce these distinct planet populations remain unclear.