image: The image shows an opto-mechanical design model for the Adaptive Optics Bench (AOB). Adaptive optics is a process where the effects of the Earth's turbulent atmosphere are corrected optically. In the picture the white beam is the light coming from the telescope (from the top left) - the wavefront of this beam is distorted by the atmosphere. The green beam is the measurement system - here a wavefront sensor is used to accurately measure the exact shape of the wavefront. The red beam is the corrected beam - here a deformable mirror (which has a shape that can be varied), has been used to correct the distortion (ie flatten the wavefront). The corrected light exits (middle left) and goes to back to the telescope. Because the light is corrected it has higher resolution (can see sharper images with more detail) and greater sensitivity (can see fainter and more distant objects).
Credit: Australian Astronomical Optics – Macquarie University
New multi-million dollar project will further view of the universe
An international consortium headed by Macquarie University has won a US $10 million competitive international tender process to lead the design and construction of adaptive optics for the Gemini North Telescope in Hawaii, one of the world’s largest and most advanced optical telescopes.
The Adaptive Optics Bench (AOB) project is led by Macquarie University's Australian Astronomical Optics (AAO) team, in collaboration with the Advanced Instrumentation and Technology Centre (AITC) from the Australian National University, the French Aerospace Laboratory (Office National d'Études et de Recherches Aérospatiales, or ONERA), Marseille Astrophysics Laboratory (Laboratoire d’Astrophysique de Marseille, or LAM) the OHP (Observatoire de Haute Provence), and French specialist optical manufacturer ALPAO. The partnership also includes consulting firms Space ODT (Portugal), Mersenne Optical Consulting (New Zealand), and Wakea Consulting (France).
“This is a significant achievement for the University and for Australian astronomy,” says Macquarie University’s Distinguished Professor Jon Lawrence, Principal Investigator for the AOB project.
“The adaptive optics technology we are developing will remove the blur from turbulence in our atmosphere, so astronomers can see sharper, cleaner images through the 8.1-metre Gemini Telescope, opening up new possibilities for scientific discovery.
“The Gemini Telescope is one of the world's most advanced optical telescopes, and this project will make it even more powerful.”
The project will also provide hundreds of hours of guaranteed observing time on the Gemini Telescope for Australian astronomers, significantly expanding our research capabilities.
The decision to award the bid came after a 12-month competitive Phase A study that saw three international teams develop a proposed design, detailed build schedule and costing.
The project will be funded by the US National Science Foundation via the Association of Universities for Research in Astronomy, or AURA.
“We assembled a team of world-leading experts, and our design was chosen for its innovative approach and efficient techniques to enable high throughput of light,” says Professor Lawrence.
Macquarie University Vice-Chancellor Professor S Bruce Dowton says the project highlights the importance of Australian expertise in achieving international goals.
“Macquarie University is proud to be leading this project and contributing to the global effort to advance our understanding of the universe,” he says.
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