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Optical Search for Extraterrestrial Intelligence

Optical Search for Extraterrestrial Intelligence

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  • High frequency radio wavesHughes Research Laboratory in Californiapaper by Robert Schwartz and Charles Townes People still continued to use radio waves for several decades though until laser technology has been improved October 19, 1998 OSETI at Harvard
  • Stuart Kingsley’s Columbus in Bexley, OH near Columbus which is 2 and a half hours south-west of hereLick at the University of California

Transcript

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