3.23 Astro 1 Section 1 Professor Brandt

3.23 Astro 1 Section 1 Professor Brandt - Astro 1 Section 1...

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Astro 1 Section 1 Professor Brandt Monday March 22nd 1999 Announcements: Lecture notes: Class 29. "More than meets the eye" In the last class we covered optical telescopes. Today we'll move on to talk about telescopes at other wavelengths. Photons at all different wavelengths are constantly impinging on Earth - we would miss huge amounts of information if we only used visual light to study universe. Slides shown - of different views from optical radio infrared and near infrared. COBE satellite - here can see cool low mass stars - like K and M stars which are cool enough to radiate down there. Gamma ray slide - most of gamma rays from our Galaxy were made when energetic charged particles slamed into gas clouds. At high Galactic latitudes see several active galactic nuclei (AGN) Radio Telescopes Going back to our plot of the electromagnetic spectrum we see that the other main range of wavelengths where astronomy from ground will work is radio. As a result there are literally hundreds of radio telescopes that have been built all around the
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This note was uploaded on 02/20/2008 for the course ASTRO 1 taught by Professor Brandt during the Spring '99 term at Penn State.

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3.23 Astro 1 Section 1 Professor Brandt - Astro 1 Section 1...

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