Exam 13: Other Planetary Systems: The New Science of Distant Worlds

What do astronomers mean by a "selection effect".Explain why the detection of giant planets in close orbits does not necessarily mean our Solar System is unusual.

What is the closest that extrasolar planets have been found to their stars?

Why do other systems have planetary types that don't fall neatly into the terrestrial and jovian categories that we identify in our solar system?

The size and shape of a planet's orbit can be determined by

Multiple-planet systems have been identified around other stars via the Doppler technique.

What information does the Doppler technique give about an extrasolar planet?

What is the purpose of the European CHEOPS mission?

How are the orbits of extrasolar planets different from the orbits of planets in our solar system?

The first planets around other Sun-like stars were discovered

About how many extrasolar planets have been discovered (as of 2008)?

Multiple planets have been identified around other stars via the transit technique.

Describe the impact the discovery of extrasolar planets h as had on the question of life on other worlds.

The signature of a planet is largest in radial velocity measurements when the planet and star are lined up along the line of sight to the telescope.

Which detection techniques can find the planet's orbital distance (assuming we know the mass of the star)?

All the following statements about known extrasolar planets are true.Which one came as a surprise to scientists who expected other solar systems to be like ours?

The total amount of light from a star-planet system drops when the planet goes behind the star.

How will the Kepler mission (scheduled for 2008 launch)look for planets around other stars?

Current techniques can measure stellar motion to less than

Suppose a planet is discovered by the Doppler technique and is then discovered to have transits.In that case,we can determine all the following about the planet except

Why is our Jupiter not a "hot Jupiter"?