Exoplanets

From PGSC Wiki
Revision as of 02:40, 6 December 2008 by 76.119.232.163 (Talk)

Jump to: navigation, search
  • How do we know that exoplanets exist? How many are there?
  • Describe two methods of detecting exoplanets
  • If an exoplanet transits a star, how does the luminosity change? Draw an plot of L vs t to scale
  • What discovery ~15 years ago made exoplanet searches feasible? (The question was phrased pretty strangely. Hint: What "class" of exoplanets were discovered about then?)
  • What is the probability of finding an eclipsing system?
  • How many transiting exoplanets have been detected from space. How many have been detected from the ground?
  • Calculate the temperature of an exoplanet caused by reflection of the parent star's light. (SR)
  • What information may be obtained if two transits of an exoplanet are observed? More than two? (RS)
  • At what radii are transits most common, smaller or larger than a Mercury orbit? What is the distance to Mercury's orbit?
    • Derive the probability of seeing a transit. (AB)
  • Given a planet of temperature T, and a Sun-like star, derive the distance from star? (AB)

Astrophysics