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Phys_org
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Melnick 39 is a colliding-wind binary system, observations find
Astronomers from the University of Sheffield and Pennsylvania State University have performed X-ray and optical observations of a massive star known as Melnick 39. As a result, they found that Melnick 39 is a colliding-wind binary system composed of two O-type supergiant stars. The finding was detailed on March 21 on the pre-print server arXiv. ⌘ Read more