Finally, scientists measure the star's wobble due to the planet's gravitational tug, known as the radial velocity.
最后，科学家测量了由于行星的引力拖拉而产生的恒星摆动，这就是径向速度。
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.
径向速度法，也被称为多普勒摆动技术，用于搜索恒星光线的摆动，它显示出来自轨道上运行的行星的万有引力。
This common method in the planet-hunting world, called radial velocity, requires extremely precise measurements to detect a planet's gravitational pull on a nearby star.
这一行星寻找领域内的常见手段叫做径向速度法，需要极度精确的数据测量才能检测到行星对附近恒星的引力作用。
The new planets were detected by measuring "radial velocity," or how fast a star wobbles depending on the gravitational pull from nearby planets.
新的行星是靠测量“径向速度”，或者恒星在周围行星的万有引力下摇摆的速度检测出来的。
But to get the planet's mass, astronomers normally need to follow up with time-consuming radial velocity observations at some of the planet's biggest telescopes.
但测量行星的质量，天文学家通常还需要使用地球上最大的天文望远镜，来测算径向速度的耗时。
But in recent years astronomers have used radial velocity to find or confirm a number of planets down to a few times Earth's mass.
但是，近年来天文学家通过径向速度法去发现或证实大量小到只有几倍的地球质量的行星。
Radial velocity is a planet-hunting technique that looks for wobbles in a star's light, which can indicate the gravitational tugs of orbiting worlds.
径向速度是一项搜寻行星技术，可以通过寻找恒星光线的摆动。
So it is this component, v cosine theta - which we call the radial velocity-- that is minus 100 kilometers per second.
这个成分，是vcosθ,我们叫做径向速度-,等于-100，公里每秒。
The radial velocity method, which looks for changes in a star's velocity toward or away from Earth triggered by a planet's orbit around that star.
径向速度法，即观察某颗行星环绕恒星的轨道所引起的恒星相对地球来往的速度变化。
The planetary treasure trove was found using an instrument called harps-short for High Accuracy Radial Velocity planet searcher-at the European Southern Observatory's la Silla facility in Chile.
这个行星宝库是在仪器HARPS(高精度径向速度行星搜索器)的帮助下发现的，这个仪器安放在位于智利的欧洲南方天文台的拉西拉设施里。
The mass transfer equation was introduced into heat transfer model of falling film evaporation. The radial velocity, mass diffusion coefficient and variation of film thickness were taken into account.
将传质方程引入到垂直管降膜蒸发传热模型中，求解时考虑了径向速度、质量扩散系数和膜厚变化对传热的影响。
In fact, the instrument the team used, the High Accuracy Radial Velocity planet Searcher attached to a 3.6-meter telescope in la Silla, Chile, is the most prolific planet-hunting device out there.
实际上，该小组使用的仪器，高精度径向行星搜索器，位于智利拉西拉，配有3.6米望远镜，是最多产的行星猎人搜索器。
The eddy currents and the magnetic fields that they generate are proportional to the radial velocity of the disk (or the linear velocity of the strip).
在涡流磁场和他们所产生的是成正比的磁盘径向速度(或带线速度)。
The more massive a planet, the easier it is to detect using radial velocity measurements (essentially the star's wobble as a planet's gravity tugs it).
行星越重，就越容易通过径向速度法侦测（本质上是行星引力对恒星的扰动）。
The method to analyze the pressure gradient with mean radial velocity is used.
本文提出了利用平均径向速度分析压力梯度的方法。
On the basis of the principle of range-Doppler coupling of linear frequency modulation signal, a new method of radial velocity estimation for high coupling coefficient is presented.
本文在分析了线性调频信号距离—多普勒耦合原理的基础上，提出了一种高耦合系数条件下径向速度估计的新方法。
The principle and realization of clutter cancellation, moving target detection, radial velocity estimation and relocation are presented based on the analysis of clutter cancellation necessity.
该方法在分析杂波对消必要性的基础上，给出了进行地杂波对消、动目标检测、径向速度分量估计及定位的原理和实现方法。
Comprehensive analysis on the characteristics of tornado Vortex (TVS), mesocyclone (m) and radial velocity Pairs are effective ways to identify tornado echoes.
综合分析龙卷涡旋特征(TVS)、中气旋(m)和径向速度场上的速度对是识别龙卷回波的有效方法。
Axial and radial holdups of solid particles and radial velocity of solid particles are all fluctuating with time.
无论是轴向、径向固含率还是固体颗粒的径向速度都是随时间波动的。
Object's radial velocity effect on object's radar cross section (RCS) outdoor measurement with pulse to pulse frequency shifting radar was researched.
研究了在脉间变频格式目标雷达散射截面(RCS)测试中目标径向速度对测试结果的影响。
Using the concepts of radial velocity and transversal velocity in polar coordinate system, a problem of pursuant trajectory in kinematics is solved.
利用极坐标系中径向速度与横向速度的概念求解运动学中的一个追线问题。
Based on three-dimensional space, a new method for the nonlinear Kalman filter using the radial velocity is presented.
提出了在三维空间中引入径向速度的非线性卡尔曼滤波算法。
A new radial velocity estimation method was presented to compensate the effects of the targets radial velocity on range profiles synthesized from a stepped-frequency radar.
为补偿目标径向速度对频率步进雷达合成距离像的影响，提出了一种目标径向速度估计方法。
The velocity distribution near the impeller, with high axial velocity and low radial velocity, is the same as ring jet flow.
叶轮区轴向速度较大，径向速度北京化工大学博士学位论文很小，其速度分布与环形射流速度分布类似。
But the mismatch between echo and replica caused by moving target's radial velocity will degrade the detecting performance of the matched filter.
根据匹配滤波器输出峰值位置可以获得目标距离的估计，但运动目标径向速度造成的回波和样本失配将导致匹配滤波器检测性能下降。
When tornado emerges, tornado vortex (TVS) and mesocyclone in the supercell storm can be found in the radial velocity chart.
径向速度图上，龙卷出现时超级单体风暴同时具有龙卷涡旋特征(TVS)和中气旋特征。
Radial velocity products of Doppler weather radar are the important basis for short-term forecast.
多普勒天气雷达的径向速度产品是制作“雷打雪”天气短时临近预报的重要依据。
Radial velocity products of Doppler weather radar are the important basis for short-term forecast.
多普勒天气雷达的径向速度产品是制作“雷打雪”天气短时临近预报的重要依据。
应用推荐