Introduction to active galaxies
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# Learning outcomes

After studying this course, you should be able to:

- explain how and why the optical spectrum of an active or starburst galaxy differs from that of a normal galaxy
- explain how and why the broadband spectrum of an active or starburst galaxy differs from that of a normal galaxy
- describe briefly the observed features of starburst galaxies and the four main classes of active galaxies (quasars, radio galaxies, Seyfert galaxies and blazars)
- understand the evidence that indicates the presence of a compact active galactic nucleus (AGN) in active galaxies
- explain why an AGN should emit broad lines, narrow forbidden lines and continuous radiation.
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OpenLearn - Introduction to active galaxies
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