An Update on the Diffraction-Limited Near Infrared Spectropolarimeter for the Daniel K. Inouye Solar Telescope
Abstract
DL-NIRSP is an integral field imaging spectropolarimeter for photospheric, chromospheric, and coronal magnetic field studies which is currently under development by the University of Hawaii’s Institute for Astronomy as part of the first light instrument suite for DKIST. DL-NIRSP pairs a multi-slit fiber-optic image slicer with narrow bandpass isolation filters and large format detectors to achieve very high cadence observations in three simultaneous wavelength channels in the Visible-IR. Planned diagnostics at first light include Fe XI 789.2 nm, Ca II 854.2 nm, Fe XIII 1074.7 nm, Si I/He I 1083.0 nm, Si X 1430.0 nm, and Fe I 1565.0 nm. More spectral lines will be added in the future. As the last stop in the DKIST light distribution system, DL-NIRSP will receive an AO corrected beam and will be able to operate simultaneously with the other visible light instruments. We provide an update on the current challenges and rewards yet to come with DL-NIRSP.
- Publication:
-
AAS/Solar Physics Division Abstracts #48
- Pub Date:
- August 2017
- Bibcode:
- 2017SPD....4811704J