UK–Thailand astronomical instrumentation programme
EXOhSPEC is a collaborative research and development programme covering echelle design, fibre delivery, calibration, telescope acquisition and instrument control. The programme includes a University of Hertfordshire test bed and partner development and telescope testing in Thailand.
Specifications and measurements are identified by instrument configuration, location and date.
Connected programme · distinct configurations
Published sources describe a working University of Hertfordshire test bed and collaboratively developed instrumentation in Thailand. Hardware, software and measurements from one context should not be treated as specifications of the other.
The University of Hertfordshire platform supports experimental development, component characterisation and instrument integration studies. Work that forms part of an unpublished research programme is retained in the restricted member record.
NARIT describes an EXOhSPEC prototype installed and tested with the 2.4 m Thai National Telescope, while another institutional listing still says “under construction”. The commissioning status therefore remains explicitly qualified here.
One platform, connected research
The public programme record follows the published optical design, fibre-delivery studies, laboratory characterisation and telescope context. Unpublished control architecture and run-level evidence are not described on this page.
A folded, double-pass spectrograph built principally from accessible components, with custom optics where they matter.
Optical designFibre injection, tapering and modal-noise research examine how light delivery affects repeatability.
Fibre systemsPeer-reviewed papers document the programme's optical, mechanical, fibre, calibration and instrument-control research.
PublicationsPublication in preparation
The measurement channels, controller design, experimental sequence and run-level results belong to ongoing University of Hertfordshire research. They will be discussed publicly once the associated work has completed peer review and been published.
Public programme images
The optical model shows the folded light path. The laboratory image shows one physical EXOhSPEC assembly. Configuration-specific experimental annotations remain in the restricted research record.
Programme milestones
The timeline connects the principal public milestones and research strands. Select a year to update the evidence panel.
SPIE papers described the folded optical design, mechanical collimator development and a replicable off-the-shelf approach.
Read the publication record
At the telescope
The acquisition and guiding unit couples a stellar image at the Thai National Telescope focal plane into an optical fibre while an internal camera supports closed-loop guiding. EXOhSPEC has recorded early astronomical spectra and radial-velocity measurements.
Restricted working record
Detailed laboratory reports, run-level results, control software and work in progress are not published on this public site. Approved collaborators can use the member area.
Astronomy, exoplanets and programme direction
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Applied optics and high-resolution spectroscopy
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Spectrograph, fibre and detector development
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Instrument control, thermal systems and scientific web design
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