radial velocity

基本解釋

Just to be sure, the team followed up with six radial velocity observations at the Keck I telescope in Hawaii.
爲了証實這一觀點，該小組使用位於夏維夷的凱尅一號望遠鏡，進行了六個逕曏速度觀測。
The new planets were detected by measuring “radial velocity, ” or how fast a star wobbles depending on the gravitational pull from nearby planets.
新的行星是靠測量“逕曏速度”，或者恒星在周圍行星的萬有引力下?lián)u擺的速度檢測出來的。
Radial velocity, also known as the Doppler wobble technique, involves searching for wobbles in a star's light that indicate the gravitational pull of an orbiting planet.
逕曏速度法，也被稱爲多普勒擺動技術，用於搜索恒星光線的擺動，它顯示出來自軌道上運行的行星的萬有引力。

The science news headlines are buzzing today with the results of a new study by astronomers from the High Accuracy Radial velocity Planet Searcher (HARPS).
FORBES: No, Scientists Did Not Find 10 Billion Earth-Like Planets In The Galaxy
An instrument called HARPS (short for High Accuracy Radial velocity Planet Searcher) is also a top contender, having already spotted a number of potentially habitable worlds.
MSN: Senior writer
By using an entirely different planet-hunting approach, it should be able to plug this gap, and provide a means of calibrating the census figures resulting from the radial-velocity and astrometric searches.
ECONOMIST: A roadmap for planet-hunting

the component of the velocity of an object, esp a celestial body, directed along a line from the observer to the object