1. Microwave/Submillimeter Astronomy
Most astronomers use the term “submillimeter”

2. Range can vary . . . C λ f 300 MHz to 300 GHz
What are these wavelengths?
c = λf . . . C λ f

3. From NASA – Tour of the EMS

4. Some General Notes . . . Microwave Region is broad and vague
Most well known in astronomy is the CMB
160GHz (1.9 mm)
The short microwaves – millimeter and below - is rich for astrophysics
This range is basically the study of “cold” stuff!
Galaxy formation and evolution
Stellar and planetary system birth
Composition of solar system atmospheres
Cosmic Microwave Background (CMB)
Molecular gas clouds

5. How do you detect these waves?
At the longer end of this range, the waves can be detected with radio telescopes
At the shorter, or submillimeter end, the waves can be detected similar to infrared.
Then moisture in the atmosphere becomes a problem

6. Two fun things to do:
Calculating the wavelength of your remote key fob
315 MHz
Do you know how to extend the range?
Speed of light using microwaves