type Ia supernovae的意思|示意

By the late 1980s, a suitable standard candle had been indentified: type Ia supernovae.

到上世纪八十年代末，一个合适的标准烛光出现了，它就是Ia型超新星。

Type Ia supernovae are so luminous that they outshine their host galaxies for several weeks.

Ia型超新星如此之亮，以至于在几个星期内它的寄主星系的光芒也相形见绌。

Researchers first observed accelerated expansion by studying Type Ia supernovae-the explosive deaths of White Dwarf stars.

研究人员在研究Ia型超新星——白矮星爆炸中的消亡过程时首度观察到加速的膨胀。

Type Ia supernovae all explode with nearly the same amount of energy and therefore have almost the same intrinsic brightness.

Ia超新星爆发时辐射的能量几乎相等，因而具有几乎相同的本征亮度。

One particular sort, though, known as type Ia supernovae, always explode with about the same energy and are therefore equally bright.

不过，有一类被称为Ia型的超新星爆炸时释放的能量始终基本相同，因此量度也相同。

The other six galaxies recently hosted Type ia supernovae that are reliable distance indicators for even farther measurements in the universe.

其他6个星系最近都爆发了Ia型超新星——测量遥远宇宙距离时更可靠的量天尺。