Not exact matches
And the
wider the distance between your two detectors, be they eyes or
radio dishes, the more acute your measurement can be.
Now Nikolai Kardashev and his colleagues at the Astro Space Centre in Moscow are hoping to change that using a vast
radio telescope with a view equivalent to that of a
dish 30 times
wider than Earth.
The observatory's 305 - meter -
wide main
dish was until recently the largest
radio telescope in the world (a bigger one, the FAST
radio telescope, opened in China in 2016).
The VLBA, a continent -
wide radio telescope system with ten
dish antennas distributed across North America, Hawaii, and the Caribbean, can measure the minuscule angles associated with great distances.
Known as FRB 121102, its location on the sky has now been monitored for many tens of hours by the National
Radio Astronomy Observatory's Karl G. Jansky Very Large Array (VLA) in Socorro, New Mexico (an array of 27 radio dishes), and the European VLBI Network (EVN)-- a continent - wide collaboration of radio telesc
Radio Astronomy Observatory's Karl G. Jansky Very Large Array (VLA) in Socorro, New Mexico (an array of 27
radio dishes), and the European VLBI Network (EVN)-- a continent - wide collaboration of radio telesc
radio dishes), and the European VLBI Network (EVN)-- a continent -
wide collaboration of
radio telesc
radio telescopes.
The array comprises
dishes in 10 locations from Hawaii to Puerto Rico, simulating a
radio telescope with a collecting area thousands of kilometers
wide.
Consisting of 16 electronically linked
radio dishes extending from Hawaii to Italy, the VLBA imitates the resolving power of a single telescope with a 10,000 - kilometer -
wide dish.
SKA will build thousands of
radio dishes and other antennas all across southern Africa and at a second site in Australia to tackle a
wide range of astronomical questions, from the nature of black holes and galaxy evolution to dark energy, cosmic magnetism, and the birth of the first stars.
What's missing from the partnership is the Arecibo Observatory in Puerto Rico, which at 305 meters
wide is the biggest and most sensitive single -
dish radio telescope in the world.
The high - altitude locale 5,000 meters above sea level will enable the ALMA's 12 - meter -
wide dishes, at least 50 of them, to probe the shorter
radio wavelengths near the infrared that the atmosphere tends to filter out.
The 1,000 - foot -
wide dish, which rests in a natural sinkhole, consists of 40,000 aluminum panels (1) that form a
radio - reflective surface.
Together, the telescopes create a virtual
dish 9000 kilometers
wide that can detect the faintest
radio emissions from distant galaxies.
This will be the
widest radio telescope array when it opens and one of the most precise when it begins operation in 2020, combining 250
dishes while leaning on other facilities for a little extra oomph.