论文信息 - A SYSTEMATIC CHANGE WITH TIME IN THE SIZE OF BETELGEUSE

A SYSTEMATIC CHANGE WITH TIME IN THE SIZE OF BETELGEUSE

The diameter of Betelgeuse (α Orionis) has been measured at a wavelength of 11.15 μm using the Infrared Spatial Interferometer over the past 15 years. During this 1993–2009 time period the star's size has decreased systematically by 15%.

D. Hale | C. Townes | E. Wishnow | B. Walp

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