NATS 1745 Study Guide - Grote Reber, Radio Galaxy, Spiral Galaxy
Document Summary
Can be detected on earth both night and day as well as through clouds. (not overwhelmed by sunlight). Easily detected with ground level telescopes (completely penetrate earth"s atmosphere). Strongly emitted by distant (young) galaxies, allowing us to observe galaxies as they appeared in the distant past. Carl jansky was the first to detect radio emission. Sagittarius constellation. (center of the galaxy) from the milky way disk. Was able to identify a few discrete radio sources. The map showed difference between discrete radio source and the galactic hiss. The map revealed that there was a broad radio peak on the right surrounded by gradual contours. To the left of sagittarius are two smaller peaks that indicate of other sources of radio emissions at those specific coordinates: describe the process that is producing the 21-cm radio emission in our galaxy. In a hydrogen atom, when the magnetic poles of the proton and electron are aligned, the electron eventually flips over.
