Developments towards a small stable high-resolution spectrograph

by Prof. Hugh Jones (University of Hertfordshire)

Wednesday 16 Aug 2023, 10:20 → 11:05 Asia/Shanghai

TDLI Meeting Room N600 (East Wing of Floor 6, North Building)

Abstract

The EXOplanet high resolution SPECtrograph (EXOhSPEC) is a high-resolution spectrograph which aims to use catalogue components tested on the Sun and local stars. It provides developments towards a small stable high-resolution spectrograph via a fibre feed into the laboratory and sometimes  with telescopes in the Canaries and Thailand. We have investigated several promising developments including modal noise control with a galvanometer, high dynamic range read-out, fibre tapering and active metrology. The long-term aim of the project is to be able to build a prototype with a small footprint to significantly extend the reach of precision radial velocities to higher precisions enabling for example a space-based radial velocity instrument.

Biography

Professor Hugh Jones is an ANSO visiting fellow working in the LAMOST group during the summer of 2023. He is a professor at the University of Hertfordshire in the UK with a career in the discovery and characterisation of nearby low-mass stars, brown dwarfs and exoplanets including Proxima Centauri which is the subject of this talk. Previous positions in Liverpool and Tokyo enabled him to build up instrumentation and model atmosphere experience. He started his studies of “The Coolest Dwarfs” as the title of his 1995 PhD thesis from the University of Edinburgh partly conducted at the Space Telescope Institute, Baltimore.

Chair

Fabo Feng

Division

Astronomy and Astrophysics

Other information

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