Astronomers Find Widest-Separation Brown Dwarf Pair to Date astronomy space science
An artist’s impression of a pair of brown dwarfs in the Pleiades cluster. Image credit: Sci-News.com / NASA / ESA / AURA / Caltech.
Sometimes called failed stars, these objects are too small to sustain hydrogen fusion reactions at their cores, yet they have star-like attributes.While stars are often found in binary systems,“Because of their small size, brown dwarf binary systems are usually very close together. Finding such a widely separated pair is very exciting,” said study’s first author Emma Softich, an undergraduate student at Arizona State University.
The astronomers then used data from the Dark Energy Survey to confirm that it was indeed a brown dwarf pair. To measure the spectral types of CWISE J0146-0508A and CWISE J0146-0508B, the researchers observed both components with the Near-Infrared Echellette Spectrometer located on the Keck II telescope.
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