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Arthur Hogan

NGC 6995 - Veil or Bat Nebula

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Iowa Astronomers Image a Magnetic Field on a Star Other than Our Sun

01/16/2010 06:00PM

Iowa Astronomers Image a Magnetic Field on a Star Other than Our Sun

Two University of Iowa astronomers have made the first direct radio image of a stellar coronal loop on a star other than the sun. The image of the was made of the star Algol, a well-known eclipsing binary star in the constellation Perseus. High resolution radio interferometry over a period of six months allowed the researchers to image features that would otherwise have been undetectable. Coronal loops at are associated with sunspots, which in turn, are associated with space weather. This work will help provide scientists with information that may lead to a better understanding of how such phenomena as space weather affect the Earth.


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