https://www.youtube.com/watch?v=RLykC1VN7NY&t=29s 伽玛射线暴(英语:Gamma Ray Burst,缩写GRB),又称伽玛暴,是来自天空中某一方向的伽玛射线强度在短时间内突然增强,随后又迅速减弱的现象,持续时间在0.01-1,000秒,辐射主要集中在0.1-100 MeV的能段。伽玛暴发现于1967年,数十年来,人们对其本质了解得还不...
Reports on the discovery made by astronomers as of July 2002 about the cause of gamma ray bursts. Detection of a telltale spectrum of a fading supernova near the gamma ray burst GRB 011121; Difficulty faced by astronomers to study gamma ra...
plural gamma-ray bursts also gamma ray bursts : a brief, powerful jet of gamma rays detected deep in space that is generated by the collapse and explosion of a celestial object … researchers … have discovered a gamma-ray burst (GRB) approximately 2.4 billion light-years away in the ...
O'Connor, who specializes in the study of massive cosmic explosions, explained that gamma-ray radiation associated with GRBs is produced by a collimated jet of material moving at nearly the speed of light — so-called relativistic speeds — which allows scientists to study the em...
产生伽马射线暴的原因是宇宙中最为剧烈的爆炸之一。理论认为，这种爆炸可能源于巨大恒星燃料耗尽后的塌缩爆炸，或是两颗接近的黑洞或中子星合并所导致的。伽马射线暴的时间跨度可以从千分之一秒到数小时不等，会在极短时间内释放出巨大的能量。例如，一个伽马射线暴在几分钟内释放的能量可能相当于太阳万亿...
Gamma ray burst 基本解释伽玛射线暴Gamma ray burst 用法和例句1、Climatic and biogeochemical effects of a galactic gamma ray burst一个银河伽玛射线猝发的气候和生物地球化学影响2、At the point of collision they may release a giant Gamma Ray Burst....
Scientists may be a step closer to discovering how gamma-ray bursts come to be some of the most powerful explosions in the known universe. For context, a single gamma-ray burst, or GRB, can produce more energy in seconds than the sun will radiate in billions of years. Because of this ...
Here we report that the peculiarities of the 'Christmas' gamma-ray burst (GRB 101225A10) can be explained by a tidal disruption event of a minor body around an isolated Galactic neutron star. This would indicate either that minor bodies can be captured by compact stellar remnants more ...
And from that first discovery in the ‘90s, we have begun to over and over and over see these optical afterglows from long gamma-ray bursts. And for a couple of decades, we consistently explained, “Well, these are hypernova, they’re caused by some sort of a gigantic star in its ...
伽玛射线暴 (Gamma Ray Burst,缩写GRB),又称伽玛暴,是来自天空中某一方向的伽玛射线强度在短时间内突然增强,随后又迅速减弱的现象,持续时间在0.1-1000秒,辐射主要集中在0.1-100MeV的能段。 伽马射线暴理论上是巨大恒星在燃料耗尽时塌缩爆炸或者两颗邻近的致密星体(黑洞或中子星)合并而产生的。如果与太阳相比,它...