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Radio Telescopes Greg Arabia TED 111 Dr. Kallis
What do radio telescopes do? <ul><li>Track and collect data from satellites </li></ul><ul><li>Monitor radio signals from o...
What can a small radio telescope do? <ul><li>Detect stronger radio sources </li></ul><ul><li>Look for high energy pulses <...
What is a radio telescope? <ul><li>Very sensitive radio receiver </li></ul><ul><li>Measures the intensity of radio waves <...
How are they made? <ul><li>A parabolic shaped dish </li></ul><ul><li>An antenna mounted on top of the dish </li></ul><ul><...
Basic radio telescope <ul><li>The dish reflects radio waves to the antenna </li></ul><ul><li>The antenna sends the signal ...
How do they work? <ul><li>Uses a parabolic shaped dish that reflects radio waves to an antenna </li></ul><ul><li>The signa...
Radio telescopes vs. Optical telescopes <ul><li>Radio telescopes are much larger due to wavelength size </li></ul><ul><li>...
The first radio telescope <ul><li>Built by Karl Jansky </li></ul><ul><li>Made on accident in 1931 </li></ul><ul><li>He rec...
Types of radio telescopes <ul><li>There are many different sizes and designs of radio telescopes </li></ul><ul><li>A few d...
Haystack radio telescope <ul><li>Controlled by remote </li></ul><ul><li>Used mainly for education and space tracking </li>...
Westford radio telescope <ul><li>Dome shaped telescope </li></ul><ul><li>Made in 1961 </li></ul><ul><li>Used in communicat...
The biggest radio telescope <ul><li>Located in Arecibo, Puerto Rico </li></ul><ul><li>1,001 foot dish </li></ul><ul><li>Ha...
What does a radio telescope listen to? <ul><li>If listened to a radio telescope all you would hear is static </li></ul><ul...
Discoveries <ul><li>Discovered that the sun and the center of the Milky way galaxy have strong radio waves </li></ul><ul><...
Work Cited <ul><li>Strobel, N. (2007, June 1).  Radio telescopes . Retrieved from http://www.astronomynotes.com/telescop/s...
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Radio telescopes power point

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Radio telescopes power point

  1. 1. Radio Telescopes Greg Arabia TED 111 Dr. Kallis
  2. 2. What do radio telescopes do? <ul><li>Track and collect data from satellites </li></ul><ul><li>Monitor radio signals from outer space </li></ul><ul><li>Detect weather, other planets, stars, and other astronomical objects </li></ul>
  3. 3. What can a small radio telescope do? <ul><li>Detect stronger radio sources </li></ul><ul><li>Look for high energy pulses </li></ul><ul><li>Detect meteors </li></ul><ul><li>Mapping </li></ul>
  4. 4. What is a radio telescope? <ul><li>Very sensitive radio receiver </li></ul><ul><li>Measures the intensity of radio waves </li></ul><ul><li>Shoots a small beam to detect the signals </li></ul><ul><li>Image source (http://dvice.com/pics/VLA_telescope.jpg) </li></ul>
  5. 5. How are they made? <ul><li>A parabolic shaped dish </li></ul><ul><li>An antenna mounted on top of the dish </li></ul><ul><li>An amplifier is used gain a stronger signal </li></ul><ul><li>All the information is sent to a computer </li></ul>
  6. 6. Basic radio telescope <ul><li>The dish reflects radio waves to the antenna </li></ul><ul><li>The antenna sends the signal to the amplifier </li></ul><ul><li>The information is recorded onto a computer </li></ul>
  7. 7. How do they work? <ul><li>Uses a parabolic shaped dish that reflects radio waves to an antenna </li></ul><ul><li>The signal is sent to an amplifier to magnify the signal </li></ul><ul><li>The signal is processed by a computer to turn the signal into a picture </li></ul>
  8. 8. Radio telescopes vs. Optical telescopes <ul><li>Radio telescopes are much larger due to wavelength size </li></ul><ul><li>Radio telescopes use lower energy than optical telescopes </li></ul><ul><li>Both use parabolic shaped dishes </li></ul>
  9. 9. The first radio telescope <ul><li>Built by Karl Jansky </li></ul><ul><li>Made on accident in 1931 </li></ul><ul><li>He recorded thunderstorms and categorized them in different categories </li></ul>Image source (http://www.nrao.edu/jansky/jansky4_small.jpg)
  10. 10. Types of radio telescopes <ul><li>There are many different sizes and designs of radio telescopes </li></ul><ul><li>A few different kinds are </li></ul><ul><ul><li>Haystack radio telescope </li></ul></ul><ul><ul><li>Westford radio telescope </li></ul></ul><ul><ul><li>Arecibo radio telescope </li></ul></ul>
  11. 11. Haystack radio telescope <ul><li>Controlled by remote </li></ul><ul><li>Used mainly for education and space tracking </li></ul><ul><li>Usually smaller telescopes </li></ul>Image source (http://www.haystack.mit.edu/edu/undergrad/srt/antenna/srtdecember.jpg)
  12. 12. Westford radio telescope <ul><li>Dome shaped telescope </li></ul><ul><li>Made in 1961 </li></ul><ul><li>Used in communications technology </li></ul>Image source: http://www.haystack.mit.edu/obs/westford/pics/Westfordatnight.gif
  13. 13. The biggest radio telescope <ul><li>Located in Arecibo, Puerto Rico </li></ul><ul><li>1,001 foot dish </li></ul><ul><li>Has a remote antenna </li></ul>Image source: http://aboutfacts.net/Astronomy/Astronomy6/arecibo_naic_big.jpg
  14. 14. What does a radio telescope listen to? <ul><li>If listened to a radio telescope all you would hear is static </li></ul><ul><li>Scientist listen for man made signals </li></ul>
  15. 15. Discoveries <ul><li>Discovered that the sun and the center of the Milky way galaxy have strong radio waves </li></ul><ul><li>There are strong radio waves coming from black places in the galaxy </li></ul><ul><li>They helped discover the black places were exploded stars </li></ul>
  16. 16. Work Cited <ul><li>Strobel, N. (2007, June 1). Radio telescopes . Retrieved from http://www.astronomynotes.com/telescop/s4.htm </li></ul><ul><li>(Slides 2, 3, 4, 5, 6, 7, and picture on slide 6) </li></ul><ul><li>How Radio telescopes work . (n.d.). Retrieved from http://www.nrao.edu/index.php/learn/radioastronomy/radiotelescopes </li></ul><ul><li>(slides 10, 11, 12, and picture on slide 2) </li></ul><ul><li>Schloerb, A. (n.d.). The Radio telescope . Retrieved from http://www.astro.umass.edu/~fcrao/education/report1.html </li></ul><ul><li>(slides 8, 9, 13) </li></ul><ul><li>Frequently asked questions about radio astronomy . (n.d.). Retrieved from http://www.radiosky.com/faq.html </li></ul><ul><li>(slide 14, 15) </li></ul>

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