Translator Disclaimer
Paper
27 July 2016 Adaptive optics for high resolution spectroscopy: a direct application with the future NIRPS spectrograph
Author Affiliations +
Abstract
Radial velocity instruments require high spectral resolution and extreme thermo-mechanical stability, even more difficult to achieve in near-infra red (NIR) where the spectrograph has to be cooled down. For a seeing-limited spectrograph, the price of high spectral resolution is an increased instrument volume, proportional to the diameter of the primary mirror. A way to control the size, cost, and stability of radial velocity spectrographs is to reduce the beam optical etendue thanks to an Adaptive Optics (AO) system. While AO has revolutionized the field of high angular resolution and high contrast imaging during the last 20 years, it has not yet been (successfully) used as a way to control spectrographs size, especially in the field of radial velocities.

In this work we present the AO module of the future NIRPS spectrograph for the ESO 3.6 m telescope, that will be feed with multi-mode fibers. We converge to an AO system using a Shack-Hartmann wavefront sensor with 14x14 subapertures, able to feed 50% of the energy into a 0.4" fiber in the range of 0.98 to 1.8 μm for M-type stars as faint as I=12.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
U. Conod, N. Blind, F. Wildi, and F. Pepe "Adaptive optics for high resolution spectroscopy: a direct application with the future NIRPS spectrograph", Proc. SPIE 9909, Adaptive Optics Systems V, 990941 (27 July 2016); https://doi.org/10.1117/12.2233651
PROCEEDINGS
9 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

PULSE The Palomar Ultraviolet Laser for the Study of...
Proceedings of SPIE (July 21 2014)
Layer oriented single and dual field of view performance...
Proceedings of SPIE (January 30 2003)
A Near Infrared Astronomical Adaptive Optics System
Proceedings of SPIE (September 20 1989)
Exoplanet imaging with the Giant Magellan Telescope
Proceedings of SPIE (June 23 2006)
Adaptive optics: choices and optimization
Proceedings of SPIE (August 25 1993)

Back to Top