standard candle

美 　英

• na.標準燭光
• 網絡標準燭光法；標準蠟燭

英漢解釋

na.

1. 標準燭光

例句

Astrophysicists have long thought of the Crab Nebula as a steady "standard candle" in X-ray wavelengths.

天體物理學家們長久以來一直將蟹狀星云的X射線波段視作穩(wěn)定的“標準燭光”。

Although Cepheids are rare, they provide a very reliable "standard candle" for estimating intergalactic distances.

雖然造父變星數量稀少，它們是估計銀河系間距離的一種非常可靠的“標準燭光”。

The original article, When A Standard Candle Flickers, was published on January 12th in the Astrophysical Journal Letters.

原文《當標準燭光閃爍時》，已于1月12日在《天體物理學報》發(fā)表。

So for decades, astronomers have used it as a "standard candle" in the field of high-energy astrophysics.

因此幾十年來，天文學家一直將其視為高能天體物理領域的“標準燭光”使用。

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

到上世紀八十年代末，一個合適的標準燭光出現(xiàn)了，它就是Ia型超新星。

This is similar to a standard candle appearing fainter at greater distances (left-hand illustration).

圖左邊就示意：遙遠的超新星看起來（比預期的）更暗。

Another type of standard candle is a type of star called a Cepheid variable.

另一種標準燭光是一種叫做造父變星的恒星。