[2025-01-18] For better promotion of the events, the categories in this system will be adjusted. For details, please refer to the announcement of this system. The link is https://indico-tdli.sjtu.edu.cn/news/1-warm-reminder-on-adjusting-indico-tdli-categories-indico

Seminars

On-sky with a small stable high-resolution spectrograph

by Prof. Hugh Richard Arthur Jones (University of Hertfordshire)

Asia/Shanghai
Tsung-Dao Lee Institute/N4F-N400 - meeting room (Tsung-Dao Lee Institute)

Tsung-Dao Lee Institute/N4F-N400 - meeting room

Tsung-Dao Lee Institute

70
Description
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 local and elsewhere. We have investigated several promising developments including modal noise control with a galvanometer, wavelength calibration with a metalon, fibre tapering and active metrology. The aim of the project is to optimise components for a prototype with a small footprint and low cost to significantly extend the reach of precision radial velocities to higher precisions enabling for example a space-based radial velocity instrument. I will talk about on-sky test observations making an atlas of Zeeman-sensitive lines and identifying optical methane. 

Biography

Professor Hugh Jones is a RS-NSFC visiting fellow working in the LAMOST group. He is a professor at the University of Hertfordshire in the UK with research interests in the discovery and characterisation of nearby low-mass stars, brown dwarfs and exoplanets. He has held previous positions in Liverpool and Tokyo where he developed  instrumentation and model atmosphere experience. He started his research 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.

主持人
Fabo Feng
负责分部
天文与天体物理
其他信息

Join Tencent Meetinghttps://meeting.tencent.com/dm/MsF9HptjDQYj

Meeting ID: 794287746 (no password