Tag

Stellar Magnetism

All articles tagged with #stellar magnetism

astronomy1 year ago•3 min saved

First Discovery of Massive Magnetic Stars Beyond the Milky Way

Astronomers have discovered magnetic stars beyond the Milky Way for the first time, located in the Magellanic Clouds. This breakthrough, achieved using advanced telescopic technologies, provides new insights into stellar magnetism and its impact on star formation and evolution in different galactic environments. The discovery enhances our understanding of cosmic magnetism and suggests that such stars might be more common in the universe than previously thought.

via The Daily Galaxy --Great Discoveries Channel|

#astronomy #european-southern-observatory #galactic-environments

science2 years ago•1 min saved

Unraveling the Enigma of Sunspot Radio Emissions

Sustained radio emissions originating from high over a sunspot challenge existing models of stellar magnetism. These emissions, lasting over a week, resemble auroral radio emissions observed in planetary magnetospheres and some stars. They are not tied to solar flare activity and are believed to be the result of electron cyclotron maser emissions. Understanding this phenomenon could lead to a re-evaluation of astrophysical models and provide new insights into the behavior of magnetic fields and energetic particles.

via Hackaday|

#astrophysical-models #radio-emissions #science

astronomy2 years ago•6 min saved

Unraveling Stellar Magnetism: Starquakes Hold the Key

Red giants, nearing the end of their lives, provide a unique opportunity for scientists to study the magnetic fields deep within stars. By using starquakes, subtle oscillations at a star's surface, researchers can probe the core and gain insights into stellar magnetism. Recent observations have shown that the magnetic fields in the hearts of red giants are more mysterious than expected. Understanding these magnetic fields is crucial for refining stellar models, calculating stellar ages more accurately, and determining the ages of potentially habitable planets and the timelines of galaxy formation.

via WIRED|

#asteroseismology #astronomy #red-giants

astronomy2 years ago•6 min saved

Unraveling Stellar Magnetism: Quaking Giants Hold the Key

Red giants, massive stars in the later stages of their evolution, provide a unique opportunity for scientists to study the mysteries of stellar magnetism. By using starquakes, subtle oscillations at a star's surface, researchers can probe the magnetic fields deep within these giants. Recent observations have shown that the magnetic fields in the cores of red giants are more mysterious and stronger than expected. Understanding these magnetic fields is crucial for refining stellar models, calculating stellar ages more accurately, and determining the timelines of galaxy formation. This knowledge could also help in estimating the ages of potentially habitable exoplanets and answering questions about extraterrestrial life and galactic archaeology.

via Quanta Magazine|

#asteroseismology #astronomy #magnetic-fields