What are the Limits of Wavelength Detection in Modern Telescopes?

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Discussion Overview

The discussion revolves around the limits of wavelength detection in modern telescopes, specifically focusing on the longest wavelengths that can be detected. Participants explore various telescopes and their capabilities in detecting long wavelengths, including the LOFAR telescope and others in astronomy.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant inquires about the longest wavelengths detectable by today's telescopes.
  • Another participant suggests that the LOFAR telescope can detect wavelengths around 30 meters, corresponding to a frequency of 10 MHz.
  • A third participant questions the accuracy of a claim regarding LOFAR's sensitivity to wavelengths as long as 7 meters, noting the discrepancy with the 10 MHz frequency.
  • Some participants express uncertainty about the current status of the 10 MHz band and its significance in the context of long wavelength detection.
  • There is a mention of the Cambridge (MRAO) pulsar array as a notable telescope for detecting long wavelengths, although its prominence in this area is debated.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the exact capabilities of telescopes regarding long wavelength detection, with multiple competing views and uncertainties expressed throughout the discussion.

Contextual Notes

There are limitations in the discussion regarding the current status of telescope technology for long wavelengths, as well as the definitions and significance of the frequencies mentioned.

Zman
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What are the longest wavelengths that todays telescopes can detect for?
 
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Probably something like lofar (10MHz = 30m)
 
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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