The Horizon Consortium’s work is broken down into six work packages that cover all the key areas needed for the concept study. Each work package is further split into smaller, task-oriented sub-packages, each led by one or two dedicated coordinators.
The WST management is overseen by the Project Office (PO). This sets the overall direction of the project, oversees its implementation, makes decisions to ensure that objectives are met, and that risks are properly managed. The PO ensures the quality of the project deliverables and supervises the successful completion of project-level key milestones and the release of associated deliverables.
The PO also ensures a work environment that supports the development of each person and that the work is carried out in a collective spirit.
The Science WP coordinates all the WST science-related activities. These include the development of the driving science cases with associated surveys, highlighting synergies with other facilities; the realisation of the Exposure Time Calculator (ETC); and the design of the global Survey Plan.
The Telescope WP has the main objective of developing, reviewing, and costing the conceptual optical and mechanical design of the telescope, its enclosure, and control system.
The Instrument WP develops, critically reviews, and costs a unified conceptual design for an initial instrumentation package, including the positioner, fibre system, MOS, IFS, detector and dispersers, and the Calibration unit. The WP will assess instrumentation upgrades, as may be required to respond to evolving science needs and expanded discovery space.
The Operations WP has the responsibility to define the Operational Concept and Science Data Flow and management. It will develop a prototype for an efficient survey planning and target allocation tool; it will produce conceptual designs and development plans for data reduction and analysis; it will identify the needs for the facility archive and provide a conceptual design.
The General facilities WP collects the following sub-packages: telescope site selection, communication activities, sustainability study of environmental impacts, and the equity, diversity, and inclusion committee.
The Science Team plays a key role in proposing and developing transformative science cases and in shaping the science-driven requirements for the WST.