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Krystina Krylova


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Optical Search for Extraterrestrial Intelligence

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Krystina Krylova

  1. 1. OSETI<br />Optical Search for Extra-Terrestrial Intelligence<br />Kristina Krylova(University at Buffalo – SUNY)<br />REU at Case Western Reserve University<br />27 July, 2010<br />
  2. 2. Timeline<br />Nationwide OSETI efforts<br />Varieties of detector setups<br />Night Sky Background simulation<br />What’s next?<br />Outline<br />2/12<br />
  3. 3. 1959 – Giuseppe Cocconi and Philip Morrison: interstellar communication via radio waves<br />1960 – Theodore Maiman: first laser in Hughes Research Laboratory<br />1961 – Robert Schwartz and Charles Townes: paper suggesting use of laser<br />1993 – Stuart Kingsley: optical SETI in the US<br />Timeline<br />3/12<br />
  4. 4. Columbus Observatory, 1993<br />Harvard, 1998<br />Princeton, 1999<br />UC Berkley, 1999<br />Lick Observatory, 2000<br />Case Western Reserve, 2007<br />OSETI groups<br />4/12<br />
  5. 5. <ul><li>1.40m by 1.05m Fresnel lenses
  6. 6. ≈1.5 inch diameter PMTs</li></ul>Data recording every 4 nanoseconds<br />5/12<br />Elementary Detector<br />
  7. 7. 9 elementary detectors = 1 mega detector<br />Threshold set on mega detector to lower background<br />Lower threshold:<br />more background vs. greater sensitivity<br />BAD GOOD<br />6/12<br />Mega Detector Facts<br />
  8. 8. Double Mega Detector<br />7/12<br />
  9. 9. Quad Mega Detector<br />8/12<br />
  10. 10. 9/12<br />Night Sky Background Simulation<br />
  11. 11. Build and install the detectors<br />Start taking data<br />10/12<br />What’s next?<br />
  12. 12. Quad mega detector better eliminates background thus more sensitive to extraterrestrial signal<br />Quad is twice as expensive as double<br />Final detector design will depend on funding<br />11/12<br />Summary<br />
  13. 13. Thank you for being here!<br />12/12<br />