The X-rays and Extreme Ultraviolet (XUV) emission from M stars can drive the atmospheric escape on planets orbiting them. M stars are also known for their frequent emission of stellar […]
space weather
Exploring Coronal Abundances Of M dwarfs At Moderate Activity Levels
Main sequence stars of spectral types F, G, and K with low to moderate activity levels exhibit a recognizable pattern known as the first ionization potential effect (FIP effect), where […]
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 […]
X-ray Activity Of Nearby G-, K-, And M-type Stars And Implications for Planet Habitability Around M stars
Context. The intense X-ray and UV emission of some active M stars has raised questions about the habitability of planets around M-type stars. Aims. We aim to determine the unbiased […]
Identifying Flare Locations Through Exoplanet Transit Occultations
M dwarfs are the most common stars in the galaxy, with long lifespans, a high occurrence rate of rocky planets, and close-in habitable zones.
Parker Solar Probe Has Touched The Outer Reaches Of A Star
Editor’s note: The Parker Solar Probe recently conducted a close fly-by of a star – our sun. This is the closest that any human object has ever gotten to any […]
Know Thy Star Know Thy Planet 2 Conference
This is a reminder that regular in-person registration for “Know Thy Star Know Thy Planet 2” closes Friday, January 17th. The conference dinner add-on closes Sunday, January 5th.
Enhancing The Detection Of Low-energy M Dwarf Flares: Wavelet-based Denoising Of CHEOPS Data
Stellar flares are powerful bursts of electromagnetic radiation triggered by magnetic reconnection in the chromosphere of stars, occurring frequently and intensely on active M dwarfs.
Sun-like Stars Produce Superflares Roughly Once Per Century
Stellar superflares are energetic outbursts of electromagnetic radiation, similar to solar flares but releasing more energy, up to 1036 erg on main sequence stars.
Ohmic Heating In The Upper Atmosphere of Hot Exoplanets The Influence of a Time-varying Magnetic Field
Exoplanets on close-in orbit are subject to intense X-ray and ultraviolet (XUV) irradiation from their star. Their atmosphere therefore heats up, sometimes to the point where it thermally escapes from […]
