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Astrometric method

Doppler method

How can we find information about the planetary atmosphere?

By observing multiple orbits with radial velocity method

By observing multiple transits at different wavelengths

By observing activity of its parent star

What’s the best explanation for the location of hot Jupiters?

They formed farther out, like Jupiter, but then migrated inward

The strong gravity of their stars pulled them in close

They formed closer to their stars than Jupiter did

Can transits be observed from Earth based telescopes for ALL exoplanets?

No, because the planetary orbit must be inclined within a narrow range of angles to see transits

No, because some planets don't block stellar light when they pass in front of the star

Yes, because we can always orientate the telescope in the direction parallel to the planet's orbit

No, because some planets are too small and the dip in brightness is too difficult to see

Which of the following can the Doppler method tell us about a planet?

Its size

Its orbital period

The eccentricity of its orbit

Its mass

Which of the following can the transit method tell us about a planet?

Its size

Its orbital period

The eccentricity of its orbit

Its mass

Which of the following are more likely to be observed using the transit method?

Planets with a small radius

Planets with a long orbital period

Planets with a large mass

Planets with a small mass

Planets with a short orbital period

Planets with a large radius

Which detection method or methods measure the gravitational tug of a planet on its star, allowing us to estimate planetary mass?

The transit method

Direct imaging

The astrometric method

The Doppler method

Which of the following are more likely to be observed using the Doppler method?

Planets with a small radius

Planets with a long orbital period

Planets with a large mass

Planets with a small mass

Planets with a short orbital period

Planets with a large radius

A planet made almost entirely of hydrogen compounds would be considered a

terrestrial planet

Jovian planet