Telescopes

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Slide 1

Telescopes

Donna Kubik PHYS162 Spring, 2006

Slide 2

Purpose of telescopes

To do what our eyes cannot

Collect photons (from radio to gamma ray)

Achieve higher resolution

Record the received photons

Images

Spectra

Slide 3

Recording

Rarely are your eyes used

to directly look through

a telescope, even for an

optical telescope!

Slide 4

Types of EM radiation

Astronomers have constructed telescopes that have detected all forms of EM radiation, both visible and non-visible, emitted by objects in space.

Slide 5

Types of EM radiation

Radio

Millimeter

Sub-millimeter

Infrared

Optical

Ultraviolet

Xray

Gamma ray

Slide 6

Types of astronomers

Radio astronomers

Millimeter astronomers

Sub-millimeter astronomers

Infrared astronomers

Optical astronomers

Ultraviolet astronomers

X-ray astronomers

Gamma ray astronomers

Slide 7

Types of astronomy

Radio astronomy

Millimeter astronomy

Sub-millimeter astronomy

Infrared astronomy

Optical astronomy

Ultraviolet astronomy

X-ray astronomy

Gamma ray astronomy

Slide 8

Types of telescopes

Radio telescopes

Millimeter telescopes

Sub-millimeter telescopes

Infrared telescope

Optical telescopes

Ultraviolet telescopes

X-ray telescopes

Gamma ray telescopes

Slide 9

The telescopes look very different!

Effelsberg radio telescope,

Germany

Slide 10

Types of telescopes

Radio telescopes

Millimeter telescopes

Sub-millimeter telescopes

Infrared telescope

Optical telescopes

Ultraviolet telescopes

X-ray telescopes

Gamma ray telescopes

Slide 11

The telescopes look very different!

NRAO 12 meter telescope, Kitt Peak Observatory

Slide 12

Types of telescopes