The future of
MOS technologies
A virtual OPTICON-CSIC Workshop
26-29 April 2021
Rationale
The technologies required to enable large spectroscopic surveys are among the most challenging in astronomical instrumentation: instruments need to be accurate, with micrometer positioning accuracy and repeatability; fast, to minimise overheads; robust, to minimise failure; and low cost.
In recent years, new mechatronic devices have been developed to place thousands of high-throughput optical fibres at any given position on the focal plane. Other technologies subject to current R&D involve micro-mirror and micro-shutter arrays, programmable slit masks and, with increasing importance, photonics technologies (e.g., multi-core fibres, photonic lanterns, multiplexers, arrayed waveguide gratings).
This event will provide an excellent opportunity to bring together experts from different areas and groups with the goal to:
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Present current and future MOS instruments and facilities
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Discuss and share innovative ideas for the design and development of new MOS instrumentation.
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Identify the key enabling technologies that will require active industrial development.
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Recognise new techniques and manufacturing capabilities in the market.
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Examine optimal target acquisition and positioning methods and algorithms.
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Review unbiased estimators to account for MOS assignment strategies.
SOC
Jean-Gabriel Cuby
Bianca Garilli
Vanessa Hill
Andreas Kelz
Francisco Prada (Chair)
Suzanne Ramsay
Rubén Sánchez-Janssen (Chair)
Programme
All sessions scheduled for 15:00 - 18:00 (CET)
Mon 26 April (14:45-18:30 CEST)
Science drivers and MOS projects
Chair: Vanessa Hill
14:45 Welcome, and OPTICON introduction
15:00 The science case for MOS: Galactic archaeology and the Local Group
E. Tolstoy (I)
15:25 The science case for MOS: Cosmology and galaxy evolution
L. Guzzo (I)
15:50 The MOS programme at ESO
V. Mainieri (I)
16:15 The international MOS landscape
A. Bolton (I)
16:40 10 min break
16:50 Concept and design of the ESO spectroscopic facility
L. Pasquini
17:05 The Maunakea Spectroscopic Explorer: Science, Status and Technology
A. McConnachie
17:20 Round table: Overview of upcoming MOS instrumentation, and lessons learned
G. Dalton (WEAVE), K. Dawson (DESI), R. de Jong (4MOST), O. Gonzalez (MOONS), R. Lupton (PFS) -- Moderator: Jennifer Marshall
18:30 End
Tue 27 April (9:50-13:30 CEST)
MOS solutions (I): optics, fibres, positioners & algorithms
Chair: Suzanne Ramsay
09:50 Welcome
10:00 Technologies for fibre positioners
J. Lawrence (I)
10:25 Fibre technologies for MOS
G. Murray (I)
10:50 GMT/MANIFEST: An overview
T. Zafar
11:05 How to measure fibre positions: The 4MOST Metrology System
R. Winkler
11:20 10 min break
11:30 Characterisation of the MOONS fibre positioners
S. Watson
11:45 The fibres of MOONS
I. Guinouard
12:00 Prime focus correctors and fast optics
P. Doel (I)
12:25 Spectrograph solutions for MOS
E. Oliva (I)
12:50 Discussion session
13:30 End
Wed 28 April (14:50-18:30 CEST)
MOS solutions (II): optics, fibres, positioners & algorithms
Chair: Bianca Garilli
14:50 Welcome
15:00 An optimized tiling pattern and probabilistic fibre-to-target assignment algorithm for MOS surveys
E. Tempel
15:15 The MOONS Observation Preparation Software
A. Belfiore
15:30 Operational rehearsals of MOS survey data flow systems
C. Worley
15:45 Implementation techniques for massive MOS surveys
K. Dawson (I)
16:10 The DESI Focal Plane
P. Fagrelius
16:25 10 min break
16:35 Fiber switching for future astronomical instrumentation
C. Poppett
16:50 Focal ratio degradation measurement for the Cobra fiber positioner of Subaru PFS
B. Belland
17:05 Keck-FOBOS: A next-generation spectroscopic facility
K. Bundy
17:20 The Magellan Infrared Multiobject Spectrograph - MIRMOS
N. Konidaris
17:35 Discussion session
18:30 End
Thu 29 April (09:50-13:30 CEST)
Photonics and non fibre-based technologies
Chair: Andreas Kelz
9:50 Welcome
10:00 Astrophotonics applications for MOS
J. Bland-Hawthorn (I)
10:25 Fibre fed spectroscopy in the AO regime
S. Ellis
10:40 Ultrafast laser inscription - an enabling technology in astrophotonics
R. Thomson
10:55 Non-fibre MOS solutions
F. Zamkotsian (I)
11:20 Metallic image slicer technology for the Gemini North telescope
A. Calcines
11:35 Operations, calibrations, and idiosyncrasies of KMOS on the VLT
E. Sani
11:50 10 min break
12:00 Multi-object Spectroscopy at GTC
A. Cabrera-Lavers
12:15 The development of MOSAIC, a flexible MOS facility for the ELT
G. Dalton
12:30 HRMOS: A high resolution multi-object spectrograph for the VLT
G. de Silva
12:45 Discussion session
13:30 End