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About

Sree Oh is an instrumental astronomer whose work is central to the design and deployment of next-generation spectroscopic facilities. Her primary research focuses on the development of integral field spectrographs (IFS) and fibre-fed positioning systems, enabling large-scale surveys of the cosmos. Oh’s most prominent contribution is her leadership in the Hector instrument project, a new optical IFS commissioned on the Anglo-Australian Telescope (AAT) in 2022. This instrument, built by the Astralis consortium, is now powering a landmark 15,000-galaxy IFS survey of nearby galaxies (z < 0.1), providing unprecedented 3D spectroscopic data. Her 2024 paper on Hector’s performance, with 5 citations, details the instrument’s successful commissioning and survey commencement. Oh is also advancing the Giant Magellan Telescope (GMT) through her work on the MANIFEST fibre-positioning system, which will feed the GMT’s first-light instruments—G-CLEF and GMACS—over a 14-arcminute field-of-view. This work, described in her 2024 paper (2 citations), promises to dramatically enhance GMT’s multiplexing capability. Through these contributions, Oh is directly shaping the future of multi-object spectroscopy, bridging instrument innovation with transformative astronomical discovery.