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8 Cards in this Set

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electromagnetic energy?
-forms of energy
-(i.e- X rays and Radio waves)
-all travel at fast speeds
electromagnetic spectrum?
a range of wavelengths, from radio waves to gamma rays.
Radio Astronomy?
the study of radio waves from space
-are recieved from dark places in the sky that seem empty
Interferometry
to improve the radio images
Baseline
the distance two radio telescopes. The reater the baseline the greater the accuracy
Radio telescope arrays
radio telescopes arranged in groups
-reasoning:because when a group of them works as one it produces a stronger image
Why are there no ultraviolet, X-ray, or gamma ray on earth's surface?
because mos infrared wavelengths are absorbed by the Earth's atmosphere
What does IRAS stand for?
-Infrared Astrononmy Satillite
-was used to detect unknown galaxies