2025年5月6日
The Doubly Warped World of Binary Black Holes
Scientific Visualization Credit: NASA, GSFC, Jeremy Schnittman & Brian P. Powell; Text: Francis J. Reddy
Explanation: If one black hole looks strange, what about two? Light rays from accretion disks around a pair of orbiting supermassive black holes make their way through the warped space-time produced by extreme gravity in this detailed computer visualization. The simulated accretion disks have been given different false color schemes, red for the disk surrounding a 200-million-solar-mass black hole, and blue for the disk surrounding a 100-million-solar-mass black hole. For these masses, though, both accretion disks would actually emit most of their light in the ultraviolet. The video allows us to see both sides of each black hole at the same time. Red and blue light originating from both black holes can be seen in the innermost ring of light, called the photon sphere, near their event horizons. In the past decade, gravitational waves from black hole collisions have actually been detected, although the coalescence of supermassive black holes remains undiscovered.
Hole New Worlds: It’s Black Hole Week at NASA!
Tomorrow’s picture: galaxy war
双黑洞的双重翘曲世界
科学视像提供: NASA, GSFC, Jeremy Schnittman & Brian P. Powell; 文稿: Francis J. Reddy
说明: 如果一颗黑洞就已经够怪异了，那二颗会怎样？这部细致的电脑视象影片，呈现源自一对互绕超大质量黑洞的吸积盘之光线，如何穿过极端强烈引力造成的翘曲时空。这部模拟以不同的假色为吸积盘上色，2百万太阳质量黑洞周围的吸积盘为红色，而1百万太阳质量黑洞的吸积盘为蓝色。以这对黑洞的质量来说，它们的吸积盘所辐射的光，大多在紫外光波段。此外，这部影片让我们得以同时见到每颗黑洞的正反二面。源自这二颗黑洞的红光与蓝光，则出现在最内围、事件视界附近的光子层上。于过去的十年之中，已明确的侦测到黑洞碰撞时发出的引力波，不过，超大质量黑洞合并事件仍有待发现。（photon sphere 光子层）
黑洞新世界: 这是NASA的黑洞周！
明日的图片: galaxy war
