Tag

M Dwarfs

All articles tagged with #m dwarfs

astronomy1 month ago•6 min saved

Sympathetic Flares Across 16,000 Stars Hint at a Universal Magnetic Mechanism

A Tufts-led study analyzed about 200,000 stellar flares from 16,000 stars and found sympathetic flaring—secondary flares triggered by a primary one—occurs widely beyond the Sun. Using a new algorithm called TOFFEE, researchers distinguished related flares and discovered similar rates on M-dwarfs (about 4–9%), suggesting a common mechanism for stellar magnetic activity across different star types. The findings, published in The Astrophysical Journal, expand our understanding of how stars flare across the galaxy.

via The Daily Galaxy|

#astronomy #m-dwarfs #stellarflares

astronomy2 years ago•5 min saved

"Scientists Debate Alien Dyson Sphere Candidates in Our Galaxy"

Seven candidate Dyson spheres identified by Project Hephaistos may actually be distant, dusty quasars, raising questions about their true nature. While some astronomers suggest these candidates could be extreme debris discs or background contamination from "Hot DOGs" (dust-obscured galaxies), further spectroscopic observations, potentially using the James Webb Space Telescope, are needed to confirm their identity.

via physicsworld.com|

#astronomy #dyson-sphere #infrared-radiation

space2 years ago•3 min saved

"New Study Boosts Chances of Discovering Water on Exoplanets by 100-Fold"

A new analysis presented at the Goldschmidt geochemistry conference reveals that there may be a significantly higher number of Earth-like exoplanets with liquid water than previously thought, increasing the chances of finding life. The study suggests that even if the surface of a planet is frozen, there are geological conditions under the surface that can support liquid water. Moons like Europa and Enceladus, which have substantial underground liquid water despite frozen surfaces, are considered prime candidates for finding life. The research focused on exoplanets orbiting M-dwarfs, the most common type of stars in our galaxy. The findings indicate that the probability of finding liquid water on exoplanets could be as high as one planet per star, a hundred times more likely than previously estimated.

via EurekAlert|

#exoplanets #life #liquid-water

science3 years ago•3 min saved

New Study Reveals Potential for Hundreds of Millions of Habitable Planets in the Milky Way.

A new study suggests that one-third of planets around M dwarfs, the most common type of star in the Milky Way, may be suitable for life, meaning there are likely hundreds of millions of habitable planets in the galaxy alone. The study used data from the Kepler mission and the European Space Agency's Gaia satellite to fine-tune measurements of exoplanets' orbits and determine which planets were at risk of tidal heating, a process that can burn away a planet's chances for habitability. The results were published in the journal PNAS.

via Livescience.com|

#habitable-planets #kepler-mission #m-dwarfs