ASTRON 1F03 Chapter Notes - Chapter 3: Hot Jupiter, Sine Wave, Formation And Evolution Of The Solar System
18 Dec 2018
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Document Summary
How was the solar system made: how are planetary systems made in general? (around other stars too, there is a lot of evidence to look at, a good theory should address all the key evidence. In the last 30 years ago, telescopes have started allowing us to see star-forming regions. Historical development: water, ammonia and methane are found in the ice giants, for them to me solid, they have to be far away from the sun (3au, density difference: only an order of 5 of difference. Can gas disks break up into clumls: no it is too hot, air resists. Detection: there are many reasons why stars move, so we hace to take a lot of measurments, and onlywhen we get a steady sine curve can we assume it is orbiting. Motion of the sun: all imposing a sine wave on the sun, saturn and jupiter especially.
