The Wide-Field Multi-Object Spectrograph is one of the second generation
instruments for the Gemini telescopes currently being considered. This
instrument would allow much more detailed investigation of the nature of dark
matter. The Gemini telescopes, which are located in Hawaii and Chile,
were built and are operated by a partnership of seven countries including the
UK. Both of the telescopes are now operational and most of the first
generation instruments have been delivered. The next generation of
instruments will enable Gemini to remain at the forefront of optical/IR
astronomy into the next decade. A consortium with representation from the
Anglo-Australian Observatory (AAO), and groups from the UK and US has been set
up to undertake a feasibility study of WFMOS.
Scientific Impact
This instrument would allow much more detailed investigation
into the nature of dark matter and dark energy and into galaxy formation.
Strategic Priority
This project would address several of PPARC's key science questions
regarding the nature of dark matter and formation and development of
galaxies.
Timeliness
Initial WFMOS observations on Gemini would be feasible around 2011/2012.
Track Record
The UK has considerable expertise with the Gemini telescopes and instrument
development. UK groups including Durham, Oxford and Portsmouth have
contributed to design work on the Gemini tip-tilt corrector design, data
reduction and analysis software, NIR spectrograph design and fibre
connectors.
Momentum
An international consortium led by the AAO and including a number of UK
Groups, has undertaken a feasibility study and will consider the design and
build phase if the instrument is approved. The Gemini Board will consider
the various design phases and funding.
UK Involvement
The UK is one of the 7 partnership countries that built and operates the
Gemini telescopes. The UK has a high level of expertise in the Gemini
telescopes and instrumentation. The universities of Durham, Oxford and
Portsmouth have been part of the international consortium and would also be
involved in the design and build of some of the technologies if the instrument
is approved.
Risk
The construction and operation costs of this complex instrument could be
higher than Gemini's rough order of magnitude estimate of US$32 million.
Cost
US$46M is the baseline cost for the instrument on Subaru.
