White Dwarf 是英语中的一个天文学术语，指的是一种恒星的演化阶段。它是从质量较小的恒星（如太阳）发展而来的，经过了红巨星阶段后，最终成为了白矮星。白矮星主要由电子简并物质组成，不再发生核聚变，但会持续发光，直到逐渐冷却。

音标

/waɪt dɔːrf/

翻译

中文翻译：白矮星

词性：名词

读音

"White" 读作 /waɪt/

"Dwarf" 读作 /dɔːrf/

用法

"White Dwarf" 用于描述天文学中的一种特殊的恒星类型，通常是在恒星演化过程的最后阶段。它的体积非常小，但质量较大，密度极高，主要由电子简并物质构成。

例句

A white dwarf is the remnant of a star that has exhausted the fuel for nuclear fusion.

After exhausting its nuclear fuel, the star transforms into a white dwarf.

White dwarfs are incredibly dense, with a mass comparable to the Sun but a size similar to that of Earth.

The closest white dwarf to Earth is Proxima Centauri, a part of the Alpha Centauri star system.

White dwarfs do not have the ability to sustain nuclear fusion, so they gradually cool down over billions of years.

When a white dwarf cools to a certain point, it may become a black dwarf.

The process of a star becoming a white dwarf is an essential aspect of stellar evolution.

White dwarfs are often found in binary systems, where they can pull matter from a companion star.

Over time, a white dwarf will emit less and less energy as it loses heat.

Some astronomers study white dwarfs to better understand the fate of our Sun.

短语搭配

White dwarf star 白矮星

White dwarf cooling 白矮星冷却

White dwarf remnant 白矮星遗迹

White dwarf mass 白矮星质量

White dwarf luminosity 白矮星亮度