Why Have Astronomers Using the Radial Velocity Method Found More

question 84

Multiple Choice

Why have astronomers using the radial velocity method found more Jupiter-sized planets at a distance of 1 AU around other stars than Earth-sized planets?

• A) A Jupiter-sized planet occults a larger area than an Earth-sized planet.
• B) A Jupiter-sized planet exerts a larger gravitational force on the star than an Earth-sized planet, and the Doppler shift of the star is larger.
• C) A Jupiter-sized planet shines brighter than an Earth-sized planet.
• D) Earth-sized planets are much rarer than Jupiter-sized planets.
• E) Actually, the planets found at these distances have all been Earth sized.

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Definitions:

Par-value

The face value of a bond or stock, as stated by the issuing company, which is typically the amount paid out at maturity for bonds.

Yield To Maturity

The total return anticipated on a bond if the bond is held until it matures, taking into account both current income and capital gains or losses.

Zero-coupon Bonds

Debt securities that are issued at a discount to their face value and do not pay interest during their life but are redeemed at full face value at maturity.

Yield To Maturity

The total return expected on a bond if the bond is held until its maturity date, incorporating both interest payments and the capital gain or loss.