Ch13. Other Planeyary Systems

Question 0

2 ways to learn about distant objects

Answer 0

A. Directly preferable visible or infrared spectra

B. Indirect infer w/I seeing

Question 1

2 challenges to learning about extrasolar planets

Answer 1

Distance and brightness of their sun makes them hard to see

Question 2

2 major approaches of indirect find and study extrasolar planets

Answer 2

A. Observe motion to find gravitational pull. Early discoveries
B. Changes in stars brightness, one of it planets pass in front of it. Kepler uses this

Question 3

All objects in a star system orbit the systems balance point or center if mass. EVEN the star. T/f

Answer 3

T

Question 4

Doppler best for identifying massive planets that orbit ? To their star

Answer 4

Close. With short orbital periods.

Question 5

Doppler requires a very ? Telescope to obtain spectra to loll for very ? Doppler shifts

Answer 5

Large. Small

Question 6

To date all nearly all extroplanetsry mass has come from

Answer 6

Doppler method

Question 7

We can determine Doppler effect in a stars spectrum only if the planet is not??

Answer 7

Face on

Question 8

??is the only effective way to measure extroplanetsry right now

Answer 8

Transit oberservations