Detection of exoplanets (AQA A-Level Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What are exoplanets?
What are exoplanets?
Planets orbiting stars outside our solar system
Why are exoplanets challenging to observe directly?
Why are exoplanets challenging to observe directly?
Host star's brightness obscures them
What does the radial velocity method detect?
What does the radial velocity method detect?
Doppler shift in starlight
What causes a star to wobble in the radial velocity method?
What causes a star to wobble in the radial velocity method?
Star and planet orbit common centre of mass
What happens to starlight as the star moves towards Earth?
What happens to starlight as the star moves towards Earth?
Blue-shift to shorter wavelengths
Which type of planet is the radial velocity method most effective for detecting?
Which type of planet is the radial velocity method most effective for detecting?
High-mass planets
What is observed in the transit method?
What is observed in the transit method?
Dip in intensity of starlight
What does the amount of blocked starlight indicate in the transit method?
What does the amount of blocked starlight indicate in the transit method?
Size of the planet
What is a key limitation of the transit method?
What is a key limitation of the transit method?
Orbit must align between star and Earth
What do the depth and duration of a light curve dip reveal?
What do the depth and duration of a light curve dip reveal?
Planet's size and orbital characteristics