| Abstract from DBPedia | An intermediate-mass black hole (IMBH) is a class of black hole with mass in the range 102–105 solar masses: significantly more than stellar black holes but less than the 105–109 solar mass supermassive black holes. Several IMBH candidate objects have been discovered in our galaxy and others nearby, based on indirect gas cloud velocity and accretion disk spectra observations of various evidentiary strength. The gravitational wave signal GW190521 detected on 21 May 2019 resulted from the merger of two black holes, weighing 85 and 65 solar masses, with the resulting black hole weighing 142 solar masses. The remaining 8 solar masses were converted to gravitational wave energy.中間質量ブラックホール（ちゅうかんしつりょうブラックホール、英: Intermediate-mass black hole、IMBH）とは、その質量が恒星質量ブラックホール（質量が太陽質量の10〜数十倍）よりも著しく大きく、かつ超大質量ブラックホール（質量が太陽質量の100万倍以上）よりも遥かに小さいブラックホールのこと。 (Source: http://dbpedia.org/resource/Intermediate-mass_black_hole) |
