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Stargazing Longest wavelegth telescope

  1. Apr 26, 2010 #1
    What are the longest wavelengths that todays telescopes can detect for?
     
  2. jcsd
  3. Apr 26, 2010 #2

    mgb_phys

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    Probably something like lofar (10MHz = 30m)
     
  4. Apr 26, 2010 #3
    I looked up the Lofar telescope on the web and in a slashdot comment;

    http://science.slashdot.org/story/1...cope-Array-Grabs-First-Pulsar-Images?from=rss

    it says that it is sensitive to wavelengths as long as 7 metres. Is this a mistake?
    I can see that 10Mhz relates to a 30m wavelength.

    Are there other telescopes in astronomy that can detect long wavelengths?
     
  5. Apr 26, 2010 #4

    mgb_phys

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    Probably the 10MHz band isn't built yet. I don't know if it's a particularly important part or just the ultimate limit of the antenna.

    Generally long wavelengths haven't been much of a focus, high energy is more sexy.
    Probably the most famous is the cambridge (MRAO) pulsar array.
     
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