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Starquakes

All articles tagged with #starquakes

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•5 min saved

Unraveling the Mystery of Radio Signals from Space: Astronomers Make Groundbreaking Discovery

Researchers from the University of Tokyo have discovered similarities between fast radio bursts (FRBs) and earthquakes, suggesting that FRBs may be caused by "starquakes" on the surface of neutron stars. By analyzing the time and energy distribution of FRBs, the researchers found distinct differences between FRBs and solar flares, but notable similarities between FRBs and earthquakes. This finding could provide new insights into earthquakes, high-density matter, and nuclear physics. The study utilized data from the Five-hundred-meter Aperture Spherical Telescope (FAST) in China and the now-decommissioned Arecibo Telescope in Puerto Rico.

via SciTechDaily|

#astronomy #earthquakes #fast-radio-bursts

astronomy2 years ago•2 min saved

Unraveling the Enigma: Scientists Uncover the Origins of Mysterious Space Signals

Scientists at the University of Tokyo have found evidence suggesting that some fast radio bursts (FRBs) may be caused by "starquakes" on the surfaces of neutron stars, particularly magnetars. FRBs are sudden blasts of radio-frequency radiation that last just a few microseconds, and while some sources emit FRBs repeatedly, others burst once and go silent. The discovery of repeating sources has led researchers to focus on compact objects like neutron stars and black holes as potential sources. Magnetars, an extreme form of neutron stars with intense magnetic fields, are considered likely candidates for producing FRBs.

via Ars Technica|

#astronomy #astrophysics #fast-radio-bursts