The first study measuring the 'spottiness' of stars could lead to better theories of stellar magnetism.
and M67. This allowed them to get more precise measurements of starspots, yielding a powerful new class of data that could direct the study of stellar magnetic fields.in the 1600s, astronomers have mainly studied stellar magnetism indirectly by looking at stars through different filters or by detecting starspots in the light curve of a star. But now, the new technique allows them to study this phenomenon more directly.
"It was lurking in plain sight," Cao said."Within the spectrum, there was a cooler component corresponding to the starspot which was only visible in the infrared." The method pioneered by the team could help improve astronomers' use of stellar parameters to understand the neighborhoods around stars, including the stars' habitable zones, where temperatures are optimal to allow liquid water to exist.
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