7. Astronomical Spectroscopy Flashcards
1
Q
Define spectroscopy
A
Measuring amounts of light as a function of wavelength
2
Q
What produces a continuos spectrum
A
Hot, high density gas, or a hot solid
3
Q
What produces emission lines
A
Hot, low density gas
4
Q
What produces a continuous spectrum with absorption lines
A
A hot, dense gas or hot solid through a cool, low density gas
5
Q
Define objective prism spectroscopy
A
Using a large prism to disperse the light from all the stars in the field of a telescope
