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Old 15-09-2017, 02:24 PM
gary
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AAO SAMI instrument helps measure how galaxy's spin affects its shape

In a 11 Sept 2017 Sydney University Press Release, it has been
announced :-

Quote:
For the first time astronomers have measured how a galaxy's spin affects its shape.

It sounds simple, but measuring a galaxy's true 3D shape is a tricky problem that astronomers first tried to solve 90 years ago.

"This is the first time we've been able to reliably measure how a galaxy's shape depends on any of its other properties - in this case, its rotation speed," said research team leader Dr Caroline Foster of the University of Sydney, who completed this research while working at the Australian Astronomical Observatory.

The study is published today in the journal Monthly Notices of the Royal Astronomical Society at https:/​/​doi.​org/​10.​1093/​mnras/​stx1869
Quote:
The team made its findings with SAMI (the Sydney-AAO Multi-object Integral field unit), an instrument jointly developed by The University of Sydney and the Australian Astronomical Observatory with funding from CAASTRO, the ARC Centre of Excellence for All-sky Astrophysics.

SAMI gives detailed information about the movement of gas and stars inside galaxies. It can examine 13 galaxies at a time and so collect data on huge numbers of them
Press release here :-
https://eurekalert.org/pub_releases/...-asu091117.php
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