Magnetic activity of the Sun and other stars causes their brightness to vary. We investigate how typical the Sun’s variability is compared to other solar-like stars, i.e. those with near-solar […]
Space Weather & Heliophysics
Posted inPress Release, Space Weather & Heliophysics
Solar Storms Could Scramble Whales' Navigational Sense
When our sun belches out a hot stream of charged particles in Earth’s general direction, it doesn’t just mess up communications satellites. It might also be scrambling the navigational sense […]
Posted inPress Release, Space Weather & Heliophysics
A Census Of Coronal Mass Ejections On Solar-like Stars
Coronal Mass Ejections (CMEs) may have major importance for planetary and stellar evolution. Stellar CME parameters, such as mass and velocity, have yet not been determined statistically. So far only […]
Posted inPress Release, Space Weather & Heliophysics
Effect Of Stellar Flares on Planetary Habitability
Scientists funded in part by the NASA Astrobiology program are providing new insights into how terrestrial planets are affected by coronal mass ejections (CMEs) early in the formation of a […]
Posted inPress Release, Space Weather & Heliophysics
Superflares On Solar-type Stars From The First Year Observation Of TESS
Superflares, as strong explosions on stars, have been well studied with the progress of space time-domain astronomy. In this work, we present the study of superflares on solar-type stars using […]
Posted inPress Release, Space Weather & Heliophysics
Wind Morphology Around Cool Evolved Stars In Binaries: The Case Of Slowly Accelerating Oxygen-rich Outflows
The late stellar evolutionary phases of low and intermediate-mass stars are strongly constrained by their mass-loss rates. The wind surrounding cool evolved stars frequently shows non-spherical features, thought to be […]
Posted inPress Release, Space Weather & Heliophysics
Frequency of Coronal Mass Ejection Impacts with Early Terrestrial Planets and Exoplanets Around Active Solar-like Stars
Energetic flares and associated coronal mass ejections (CMEs) from young magnetically active solar-like stars can play a critical role in setting conditions for atmospheric escape as well aspenetration of accelerated […]
Posted inSpace Weather & Heliophysics
Impact of Space Weather on Climate and Habitability of Terrestrial Type Exoplanets
The current progress in the detection of terrestrial type exoplanets has opened a new avenue in the characterization of exoplanetary atmospheres and in the search for biosignatures of life with […]
Posted inBarnard's Star, Exoplanets, -moons, -comets, Press Release, Space Weather & Heliophysics
Stellar Activity Analysis of Barnard's Star
The search for Earth-like planets around late-type stars using ultra-stable spectrographs requires a very precise characterization of the stellar activity and the magnetic cycle of the star, since these phenomena […]
Posted inPress Release, Space Weather & Heliophysics
Termination of Solar Cycles and Correlated Tropospheric Variability
The Sun provides the energy required to sustain life on Earth and drive our planet’s atmospheric circulation. However, establishing a solid physical connection between solar and tropospheric variability has posed […]