Question

1. What physical quantity of the planet determines the depth of the transit?

2. What 3 things can you use to determine the radius of the exoplanet?

a) radius of the star, transit flux depth, the average flux b) radius of the star, period, semi-major axis c) transit width (duration), transit flux depth, period d) period, mass, the average flux

3. What is the most common technique for detecting exoplanets?

a) transit method b) radial velocity c) gravitational lensing d) direct imaging

4. Write the equation for Kepler's third law.

5. The time between consecutive transits is the _____.

a) orbital period b) transit width c) transit depth d) star's radius

6. Explain the relationship between the size of the exoplanet and the brightness of the star during a transit.

Answer 1

1. What physical quantity of the planet determines the depth of the transit?

Ans = Radius of planet and radius of the star.

2. What 3 things can you use to determine the radius of the exoplanet?

Ans = a) radius of the star, transit flux depth, the average flux.

4. Write the equation for Kepler's third law.

Ans =

Where P = Period in years.

a = size of the orbit (a) is expressed in astronomical units.

M1 and M2 are the masses of the two orbiting objects in solar masses.

G = Gravitational constant.

5. The time between consecutive transits is the

Ans = Orbital period.