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I Feel a Hot Wind on My Shoulder

Credit: ESO/S. Ramstedt (Uppsala University, Sweden) & W. Vlemmings (Chalmers University of Technology, Sweden)
Tuesday, Nov. 25, 2014: Mira A represents one of the most famous red giant stars in the sky. The star makes up part of the binary system Mira, which lies…Read More »





about 400 light-years from Earth. Mira A, an old star, has already started to fling its material into space for reabsorption by the universe. Mira B, Mira A’s companion, orbits it at twice the distance from the sun to Neptune. Mira A emits a slow wind which molds the surrounding material. ALMA telescope has recently confirmed that Mira’s companion stands out as a different kind of star. Mira B shows itself as a hot, dense white dwarf with a powerful, fast stellar wind. Observations have shown the winds from the two stars collaborated to form a complex nebula. The heart-shaped bubble at the center of Mira A’s more relaxed outflow stems from Mira B’s energetic wind. Image released Nov. 24, 2014.

— Tom Chao    Less «
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