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Thread: From SETI at UC Berkeley:

  1. #1

    From SETI at UC Berkeley:

    I'm surprised no one has mentioned this......................


    =================================================


    We've started searching our Kepler SETI observations and our analyses have generated some of our first candidate signals. Each of the signals below is shown in a pair of plots, one from an observation of Kepler Object of Interest (KOI) 817 and one from an observation of KOI-812. During an observation, we alternated between targets to enable us to rule out signals seen coming from two different places in the sky. If we see a signal coming from multiple positions on the sky, like the ones below, it is very likely to be interference. The signals below are undoubtedly examples of terrestrial radio frequency interference (RFI).


    What do these plots represent?
    These are plots of electromagnetic energy as a function of frequency and time. Brighter colors represent more radio energy at a particular time and frequency. For example, a radio station transmitting at 101.5 MHz would produce a large amount of energy near that frequency.


    Why are these signals interesting?
    These signals look similar to what we think might be produced from an extraterrestrial technology. They are narrow in frequency, much narrower than would be produced by any known astrophysical phenomena, and they drift in frequency with time, as we would expect because of the doppler effect imposed by the relative motion of the transmitter and the receiving radio telescope.


    What's next?
    These first results are tests of the algorithms we'll apply to all our observations of Kepler planets. During the coming weeks, we'll be posting more of our results as we process the nearly 50 TB of data we collected in early 2011.






    Download all 12 candidate signals in a .pdf file.



    And then the page changed....with an explanation.


    Update: Friday, January 6, 2012 After posting the plots below on January 5, it became clear that we had not stated as definitively and absolutely as possible that these signals are interference. We have update the post to make this clear. Sorry for any confusion.




    We've started searching our Kepler SETI observations and our analyses have generated a few 'hits,' but all are undoubtedly examples of terrestrial radio frequency interference (RFI). Each of the signals below is shown in a pair of plots, one from an observation of Kepler Object of Interest (KOI) 817 and one from an observation of KOI-812. During an observation, we alternated between targets to enable us to rule out signals seen coming from two different places in the sky. If we see a signal coming from multiple positions on the sky, like the ones below, it is very likely to be interference.


    What do these plots represent?
    These are plots of electromagnetic energy as a function of frequency and time. Brighter colors represent more radio energy at a particular time and frequency. For example, a radio station transmitting at 101.5 MHz would produce a large amount of energy near that frequency.


    Why are these signals interesting?

    We know these signals are interference, but look similar to what we think might be produced from an extraterrestrial technology. They are narrow in frequency, much narrower than would be produced by any known astrophysical phenomena, and they drift in frequency with time, as we would expect because of the doppler effect imposed by the relative motion of the transmitter and the receiving radio telescope. Even though these signals are interference, detecting events with similar characteristics to what we expect from ET is a good indication that the first steps of our detection algorithms are working properly.


    What's next?

    These first results are tests of the algorithms we'll apply to all our observations of Kepler planets. During the coming weeks, we'll be posting more of our results as we process the nearly 50 TB of data we collected in early 2011.
    http://seti.berkeley.edu/kepler-seti-interference


    I find this a little interesting......the updated post is like a wet blanket

  2. #2
    Quote Originally Posted by murmur View Post

    the updated post is like a wet blanket
    It sure is. But still interesting stuff, so thanks for posting it.

  3. #3
    Quote Originally Posted by murmur View Post
    I'm surprised no one has mentioned this......................


    =================================================





    And then the page changed....with an explanation.




    http://seti.berkeley.edu/kepler-seti-interference


    I find this a little interesting......the updated post is like a wet blanket
    I'm starting to think that SETI is in the wet blanket business.

  4. #4
    Administrator Chris's Avatar
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    Kind of reminds one of the Army's change in statement the day after the first official announcement at Roswell.

    "Oops, we didn't mean to tell the truth!"

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