ASTR 101 Lecture Notes - Lecture 43: Giant Planet, Circumstellar Habitable Zone
26 Dec 2017
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Document Summary
Amount of light blocked is directly related to size of the planet. As planet moves in front of star, you can see slight change in the spectrum of the star. Subtract from original and you get a measurement of the atm of the planet. Transits only done on planets with small orbital distances. earths have less than twice the mass of our earth. Hot zone: these planets are closer to their star than. Hot jupiters - heat causes it to balloon up. If it"s 100th the distance it currently is, it would hold on to those gases but would balloon out (quiz 4). Large eccentricities are a lot easier to see - more of a velocity wobble, more likely to see it in a planetary transit. Lots of earth-like planets and smaller planets out there, we just haven"t observed them yet. Most interesting planets are those that can potentially support life.
