Speaker
Dr
Jeewan Pandey
(Aryabhatta Research Institute of Observational Sciences)
Description
A high resolution spectrograph for recently installed 3.6-m Devasthal Optical Telescope (DOT) of the Aryabhatta Research Institute of Observational Sciences (ARIES) is envisaged as a key instrument to meet the spectroscopic requirements of the telescope. A committee of national and international experts recommended the key science program that can be taken up with the proposed instrument as asteroseisomology, Doppler imaging of spotted stars, abundances studies, spectroscopy and ground-based follow-up of exoplanets, and supernovae. The committee recommends the technical specification of the proposed instrument as follows: two mode of spectral resolution (40k and 80k), spectral coverage of 380-900 nm, and high throughput of ~20%. Further, the spectrograph should be able to record simultaneously the spectra of an object and/or sky. The spectrograph would be mounted on a vibration isolation table in a temperature controlled environment. The instrument has a fixed configuration with no moving parts ensuring a robust operation and easy maintenance. I aim to present current status of the proposed spectrograph during the talk.
Primary author
Dr
Jeewan Pandey
(Aryabhatta Research Institute of Observational Sciences)
Co-author
Dr
Yogesh Joshi
(Scientist ARIES)
