Which Detection Method Measure The Gravitational Rug Of A Planet

Physics general physics question 1.
Which detection method measure the gravitational rug of a planet. A doppler method b transit method c astrometric method. As of 2006 around 200 extrasolar planets have been identified using the radial velocity technique. Which detection method or methods measure the gravitational tug of a planet on its star allowing us to estimate planetary mass. The transit method only b.
The doppler method only c. A the transit method only b the doppler method only. The astrometric and doppler methods which one of the following can the transit method tell us about a planet. The star moves ever so slightly in a small circle or ellipse responding to the gravitational tug of its smaller companion.
Gravitational microlensing chance alignment reveals planet. Which detection method or methods measure the gravitational. It relies on. The transit method only b.
While the radial velocity method provides information about a planet s mass the photometric method can determine the planet s radius. Which detection method or methods measure the gravitational tug of a planet on its star allowing us to estimate planetary mass. The doppler method only c. Which detection method s measure gravitational tug of a planet on its star allowing us to estimate planetary mass.
Which detection method or methods measure the gravitational tug of a planet on its star allowing us to estimate planetary mass. Typically the mass of the planet m p is small enough to ignore. While both the radial velocity and transit methods rely on detecting variations in light from the star a completely different method uses the effect of gravity on light. Which method could detect a planet in an orbit that is face on to earth.
The radial velocity method for detecting exoplanets relies on the fact that a star does not remain completely stationary when it is orbited by a planet. The doppler method and astrometric which one of the following can the transit method tell us about a planet. If a planet crosses in front of its parent star s disk then the observed visual brightness of the star drops by a small amount depending on the relative sizes of the star and the planet for example in the case of hd 209458 the star dims by 1 7. The astrometric and doppler methods.
The transit method only the doppler method only the asometric and dopler methods. Gravitational microlensing was predicted by albert einstein in his general theory of relativity. The average separation of the planet and star a is simply the sum of the radii for circular orbits.