pre-white dwarf是什么意思

网络释义

用法例句

An argument about white dwarfs between Eddington and Chandrasekhar and its inspiration;

爱丁顿、钱德拉塞卡关于白矮星的争论及其启示

The recent significant progress on both the theoretical and observational researches on white dwarfs promotes the application and development of white dwarf cosmochronology.

近几年白矮星研究在理论与观测方面都取得了很大进展,这推动了白矮星宇宙纪年学的应用和发展。

It also gives a general picture of their origin in the interplanetary dust of gas,their stable evolution in the stage of main-sequence and their end with White Dwarf,Neution Star and Black Hole.

描绘出了恒星在星际气体尘埃中诞生 ,在主星序阶段稳定演化 ,最后以白矮星 ,中子星或黑洞告终的一生经历轮廓。

A concept and basic properties about high density stars during the latter period of seellar evolution, including white dwarfs, neutron stars and black holes are discussed.

对恒星演化后期的三类高密星体（白矮星，中子星，黑洞）的基本性质和概念作了简明介绍。

It is then referred to as a White Dwarf.

这时，它被称为白矮星。

Do you know about the white dwarfs?

你对白矮星有所了解吗?

They said they found thirty-eight objects called @white dwarfs@.

他们发现了38个被叫做“白矮星”的物体。

The researchers suggest that there are many white dwarf stars throughout this halo.

研究人员猜想，光晕内到处有白矮星。

White dwarfs provide an important beginning for understanding the material in this chapter.

白矮星是掌握本章材料的重要出发点。

As a slowly contracting dwarf the star may remain luminous for billions of years.

收缩较慢的白矮星仍会发光几十亿年。

Each white dwarf is a burned up, dying star like the sun.

每个白矮星都是类似于太阳燃烬后残存的恒星，

A few stars on the road to dwarfhood flare up briefly from time to time.

有些星星在演变为白矮星的过程中，不时地隐隐闪烁。

( Dwarf novae, explosions of light from the accretion disk around a white dwarf in a binary system, are examples of this phenomenon.

在双星系统中，环绕白矮星的吸积盘产生光爆而造成的矮新星，就是此现象的例子。

Mister Oppenheimer says most of the white dwarfs may be about ten-thousand-million years old.

奥本海姆先生说，大多数白矮星大约有100亿岁。

Ben Oppenheimer led the research team that discovered the white dwarfs.

本?奥本海姆领导发现这些白矮星的研究小组。

These newly discovered white dwarfs are said to be about four-hundred-fifty light years from Earth.

这些新发现的白矮星，据说距地球约450光年，

The nova phenomenon generally occurs in a binary system that has as one member a very hot white dwarf.

新星这种现象一般发生在双星系统中，其中一颗子星是非常热的白矮星。

White dwarfs compact much of the mass of the stars into a volume the size of the earth.

白矮星将其大部分质量紧密地聚集在相当地球大小的范围内。

He says the team studied pictures of the white dwarfs taken during the past thirty years.

他说科研组对过去30年来拍摄的白矮星的照片作了研究。

In the same way, ultraviolet photons from accretion disks around white dwarfs and in active galactic nuclei or quasars may also accelerate winds from the disk.

同样地，来自白矮星、跃星系核或类星体吸积盘的紫外光光子，或许也能够加速从圆盘吹出的风。

Since a 7-solar-mass is too large to be a white dwarf or neutron star, it must be a black hole.

因为有着7个太阳质量的星体不可能是白矮星或中于星，所以它一定是黑洞。

The disrupted sunlike star could form a massive disk in orbit around the dwarf.

瓦解的类太阳恒星可能在环绕白矮星的轨道上形成一个质量巨大的盘状物。