NATS 1745 Chapter 11-12: CH 11-12 Review Q Notes
14 Feb 2017
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The emission was coming from the milky way & was strongest in the center of the galaxy (constellation of sagittarius). Eruptions of radiation which trace out magnetic field lines from sunspots: describe how the sun spins. The sun spins at different rates (spins faster at the equator. Horizontal slices all spinning at different speeds due to differential rotation (each bar has its own bar magnet). Solar winds of charged particles produced by sunspots. When the particles reach the earth they glow. Radio arrays (many radio dishes) = allows us to detect the most distant objects ever observed. They combine the performance to act as a single giant dish: describe the radio emission from a pulsar. It was coming from the cores of supernova remnants; spinning charged particles produce magnetic fields & emit a beam of radio emission from the magnetic poles (when it faces us we see a pulse).
