Growing a Kerr Black Hole

• 作者: Leon F. Phillips
• 来源期刊: 现代物理(英文)
• 学科: 医学
• 关键词: KERR Black Hole No SINGULARITY Ultra-Dense Core Deep (Teravolts) Potential Well HIGH-ENERGY Incoming Particles QUARK-GLUON Plasma Information Flow through Event HORIZON
• 年，卷（期）: 2015,（13）
• 页码范围: 1789-1792
• 页数: 4页
• 分类号: R73

摘要

Growth of a black hole requires the participation of a near-by accretion disk if it is to occur at a significant rate. The Kerr solution of Einstein’s equation is a vacuum solution, but the center of a realistic Kerr black hole is not a vacuum, so the predicted disk singularity does not exist. Instead, the center of a black hole is occupied by an ultra-dense, spheroidal core whose diameter is greater than that of the theoretical disk singularity. The surface of a black hole’s core is continually bombarded by energetic particles from the external universe. Hence the cold remnant of a gravitationally-collapsed star that has often been assumed to be present at the center of a black hole must be replaced conceptually by a quark-gluon plasma whose temperature is of the order of 1012 K or more. The gravitational potential well of a black hole is extremely deep (TeV), but the number of discrete energy levels below the infinite-red-shift surface is finite. Information can be conveyed to observers in the external universe by thermally-excited fermions that escape from levels near the top of a black hole potential well.