Deck 57: The Masses of Orbiting Stars

Question 1

This type of binary star system is detected by using the Doppler shift:

A) eclipsing binary
B) spectral binary
C) visual binary
D) apparent double star

Answer 1

spectral binary

Question 2

Binary stars are used to measure _____.

A) temperature
B) distance
C) mass

Answer 2

mass

Question 3

The ______ is the point between two stars that they revolve around.

A) center of mass
B) center of light
C) center of revolution
D) center of rotation

Answer 3

center of mass

Question 4

Stars whose absorption lines move back and forth are called ______.

A) visual binaries
B) eclipsing binaries
C) astrometry binaries
D) Spectroscopic binaries

Question 5

Using Kepler's 3^rd law you can calculate the mass of an orbiting object by using _____ and _____.

Question 6

Two stars that actually go in front of each other and block their light are called ______.

Question 7

Apparent double stars are two stars going around each other.