Comment on "A noninteracting low-mass black hole-giant star binary system".
editorial · Level V
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- Record sourced from PubMed, PMID 32381688.
- Also identified by DOI 10.1126/science.aba3282.
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Abstract
Thompson <i>et al</i> (Reports, 1 November 2019, p. 637) interpreted the unseen companion of the red giant star 2MASS J05215658+4359220 as most likely a black hole. We argue that if the red giant's mass is ~1 solar mass, its companion can be a close binary consisting of two main-sequence stars. This would explain why no x-ray emission is detected from the system.