According to the stellar evolution model, 10⁸–10⁹ stellar-mass black holes (sMBHs) may exist in the Milky Way. However, only around 20 sMBHs have been dynamically confirmed. With the tremendous advancements in astronomical telescopes, new methods have been proposed to search for sMBHs. A large number of stellar spectra from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) have enabled us to search for sMBHs through spectral analysis. This article reviews the 50-year history of sMBH search and introduces the classical method and some new methods on this issue. In particular, some recent studies based on LAMOST spectra are presented. Moreover, the prospects of sMBH search are discussed.
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Gu et al. (2021) studied this question.
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