Draft:G3425

G3425 is the least massive black hole known as of 2024, having a mass of 3.7 solar masses (7.4×10³⁰ kg; 1.6×10³¹ lb) It is a dormant black hole in the Milky Way Galaxy. The black hole was discovered by the LAMOST telescope. The black hole's mass is in the mass gap between the most massive neutron star and the least massive stellar black hole formed by Type II supernovae, the first such black hole discovered. It has been proposed that the black hole is the result of the collapse of a Thorne-Zyktow object (TZO). The black hole is in a binary system with a red giant star. The TZO itself is suspected to have formed by the merger of a neutron star and giant star, making the star system originally a trinary star system of three stars.

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Categories:

• black holes
• Milky Way Galaxy