What are the Limits of Wavelength Detection in Modern Telescopes?

[Zman]

What are the longest wavelengths that todays telescopes can detect for?

 

[mgb_phys]

Probably something like lofar (10MHz = 30m)

 

[Zman]

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?

 

[mgb_phys]

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.

 

[sardar]

The longest wavelengths that today's telescopes can detect for are in the radio and submillimeter range, with the largest telescopes capable of detecting wavelengths up to a few millimeters. These wavelengths are important for studying objects such as cold gas and dust in the universe, and for probing the earliest stages of galaxy formation. However, there are also plans for future telescopes, such as the Square Kilometer Array, which will be able to detect even longer wavelengths in the centimeter and meter range. These advancements in technology will allow us to further explore the mysteries of the universe and expand our understanding of the cosmos.