Auriga Gravitational Wave Detector #2
by Tommaso Guicciardini/science Photo Library
Title
Auriga Gravitational Wave Detector #2
Artist
Tommaso Guicciardini/science Photo Library
Medium
Photograph - Photograph
Description
Gravity wave research. Cross-section of the gravi- tational wave detector Auriga at Legnaro, Italy. Auriga is one of the first ultracryogenic antennae in the world. The gravitational waves are detected by a 3m long bar (not seen here) suspended within concentric shells in the cavity at centre. The shells shield the bar from external vibrations; the bar is also cooled to a temperature of about 0.1 Kelvin to minimise its atomic thermal vibrations. Auriga will be aimed at detecting gravitational waves from supernova explosions from galaxies of the Local Group which are thought to cause vibrations in the bar with an amplitude of a billionth of a billionth of a metre.
Uploaded
February 25th, 2021
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