alfa-proces

alfa-proces

A hypothetical process of nucleosynthesis, which consisted of redistributing α-particles in the region from neon 20 to iron 56 (and perhaps slightly higher). The α-process has been replaced by explosive and nonexplosive C, O, and Si burning occurring in rapidly evolving or even explosive stages of stellar evolution which at higher temperatures and densities becomes the e-process.

0 0

完善词条

添加图像

词性：名词
同义词：
词汇：
行业/领域：天文学
类别普通天文学
Company: Caltech
产品：
取首字母的缩写词：

添加至 My Glossary

其他语言：

类似词条

r-proces

天文学; 行星科学

The buildup of heavy isotopes inside massive stars by the rapid (hence the use of "r") absorption of neutrons by atomic nuclei. See also s-process and supernova.

proces

计算机; 工作站

A unit of activity characterized by a single sequential thread of execution, a current state, and an associated set of system resources.

proces

软件; 计算机; 操作系统

The runtime instance of an application or program. A process has its own virtual memory space and system resources (including port rights) that are independent of those assigned ...

proces

商务服务; 项目管理

Set povezanih radnji koje se izvode da bi se postigao određeni set proizvoda, rezultata i usluga.

proces

杂项; 名词

Niz akcija i koraka kako bi se postigla određena svrha.

aktinijum

天文学; 普通天文学

soft, silvery-white, radioactive metal which glows in the dark

nuklearna veličina

天文学; 普通天文学

See definition for m 2 , above.

orbitalni elementi

天文学; 普通天文学

Parameters (numbers) that determine an object's location and motion in its orbit about another object. In the case of solar-system objects such as comets and planets, one must ...

orbita

天文学; 普通天文学

The path of one object about another (used here for an object orbiting the sun).

meteori

天文学; 普通天文学

Small rocky and/or icy particles that are swept up by the earth in its orbit about the sun. Also called "shooting stars", they travel across the sky in a very short time, from ...

m2

天文学; 普通天文学

The magnitude value measured (or predicted) for a comet's nuclear condensation. Note that the true comet nucleus is rarely, if ever, directly observed from the earth because of ...