Many stars of different spectral types with planets in the habitable zone are known to emit flares.
Space Weather & Heliophysics
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release, Space Weather & Heliophysics, TRAPPIST-1
Extending Optical Flare Models to the UV: Results from Comparing of TESS and GALEX Flare Observations For M Dwarfs
The ultraviolet (UV) emission of stellar flares may have a pivotal role in the habitability of rocky exoplanets around low-mass stars.
Posted inExtinction events, Habitable Zones, Press Release, Radiation, Space Weather & Heliophysics
Tree Rings Offer Insight Into Devastating Cosmic Radiation Storms That Strike Earth
A University of Queensland study has shed new light on a mysterious, unpredictable and potentially devastating kind of astrophysical event.
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release, Space Weather & Heliophysics, TRAPPIST-1
3D Modelling Of The Impact Of Stellar Activity On Tidally Locked Terrestrial Exoplanets: Atmospheric Composition And Habitability
Stellar flares present challenges to the potential habitability of terrestrial planets orbiting M dwarf stars through inducing changes in the atmospheric composition and irradiating the planet’s surface in large amounts […]
Posted inPress Release, Radiation, Space Weather & Heliophysics, TRAPPIST-1
Lower-than-expected Flare Temperatures For TRAPPIST-1
Although high energetic radiation from flares is a potential threat to exoplanet atmospheres and may lead to surface sterilization, it might also provide the extra energy for low-mass stars needed […]
Posted inExoplanets, -moons, -comets, Press Release, Radiation, Space Weather & Heliophysics
First Millimeter Flares Detected from Epsilon Eridani with ALMA
We report the detection of three large millimeter flaring events from the nearby Sun-like, ϵ Eridani, found in archival ALMA 12m and ACA observations at 1.33 mm taken from 2015 […]
Posted inExoplanets, -moons, -comets, Press Release, Space Weather & Heliophysics
Superflares On Solar-like Stars: A New Method For Identifying The True Flare Sources In Photometric Surveys
Over the past years, thousands of stellar flares have been detected by harvesting data from large photometric surveys.
Posted inHabitable Zones, Press Release, Space Weather & Heliophysics
The Role of High Energy Photoelectrons on the Dissociation of Molecular Nitrogen in Earth’s Ionosphere
Soft x-ray radiation from the sun is responsible for the production of high energy photoelectrons in the D and E regions of the ionosphere, where they deposit most of their […]
Posted inSpace Weather & Heliophysics
Constraining the Physical Properties of Stellar Coronal Mass Ejections with Coronal Dimming: Application to Far Ultraviolet Data of ε Eridani
Coronal mass ejections (CMEs) are a prominent contributor to solar system space weather and might have impacted the Sun’s early angular momentum evolution. A signal diagnostic of CMEs on the […]
Posted inSpace Weather & Heliophysics
Terrestrial Impact From The Passage Of The Solar System Through a Cold Cloud a Few Million Years Ago
It is expected that as the Sun travels through the interstellar medium (ISM), there will be different filtration of Galactic Cosmic Rays (GCR) that affect Earth. The effect of GCR […]