High Resolution SPectrometer for HCT, Hanle: an update
Abstract
A high resolution spectrometer for the 2m Himalayan Chandra Telescope (HCT) at Indian Astronomical Observatory (IAO) Hanle, is being built to meet the observational requirement of many advanced areas in astronomy requiring high spectral resolution. This instrument is based upon a modern design using a white pupil concept which has been adopted in several contemporary high resolution spectrometers. This design is known to reduce light losses due to vignetting and also provides the full spectral coverage (350nm-1000nm) in a single CCD frame. This design also incorporates additional features like image-slicer which would result in very high light efficiency. A peak throughput of 20% in visual range and throughput of 8% is expected at extreme blue and red wavelengths. The spectrometer would give resolutions of 60,000 and 30,000 in two resolution modes. In this contribution we describe the instrument and its environment and give an update on its development and science programs we propose to undertake.
- Publication:
-
Astronomical Society of India Conference Series
- Pub Date:
- 2013
- Bibcode:
- 2013ASInC...9..100S