GNIRS integral field spectroscopy modes on-sky performance

Ruben Diaz; Mark Rawlings; Ray Sharples; Emanuele Farina; Brian Lemaux; Andrew Stephens; Damian Mast; John White; Turner James; Edo Tapia; Ariadna Calcines; Cornelis Dubbeldam; Jen Miller; Cyril Bourgenot; David Ryder; Ken Parkin; Paul White; Cicero Lu; Tom Geballe; Hawi Stecher; Natalia McCarthy; Jennifer Andrews; Zachary Hartman; Javier Camperi; Hyewon Suh; Pablo Martín; María Agüero; Siyi Xu

doi:10.1117/12.3020524

29 July 2024 GNIRS integral field spectroscopy modes on-sky performance

Ruben Diaz, Mark Rawlings, Ray Sharples, Emanuele Farina, Brian Lemaux, Andrew Stephens, Damian Mast, John White, Turner James, Edo Tapia, Ariadna Calcines, Cornelis Dubbeldam, Jen Miller, Cyril Bourgenot, David Ryder, Ken Parkin, Paul White, Cicero Lu, Tom Geballe, Hawi Stecher, Natalia McCarthy, Jennifer Andrews, Zachary Hartman, Javier Camperi, Hyewon Suh, Pablo Martín, María Agüero, Siyi Xu

Author Affiliations +

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 1309629 (2024) https://doi.org/10.1117/12.3020524
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

We report the on-sky performance of two new integral field units (IFUs) for the Gemini Near-Infrared Spectrograph (GNIRS). The IFUs were designed and built at the Centre for Advanced Instrumentation in Durham University, as part of Gemini’s Instrument Upgrade Program. The Low Resolution IFU (LR-IFU) has a field-of-view of 3.15" ´ 4.80" sampled with a pixel scale of 0.15". It currently covers the X, J, H, and K nearinfrared bands with a spectral resolution of R~1700−7200 depending on the grating. Observations with the LRIFU can be combined with the “super-seeing” mode offered by Gemini-North (LGS+PWFS1), which can improve the sharpness of the PSF to below the Nyquist sampling. The High Resolution IFU (HR-IFU) has a 1.80" × 1.25" field-of-view at a 0.05" sampling, and is optimized for fully adaptively corrected images delivered by the Gemini North ALTAIR AO system. In addition, the GNIRS HR-IFU extends Gemini’s integral field capabilities in wavelength out to the thermal infrared, i.e., in the L and M bands, with 0.2” spatial resolution and up to a spectral resolution of R~18,000. Thanks to their exceptional throughput (70-85% of the long slit width matching the size of the slicer), the commissioning of these modes opens up new scientific opportunities for spatially resolved spectroscopy on Gemini, including study of the kinematics of stellar outflows around high-mass young stellar objects, probing the AGN-Starburst connection in active galactic nuclei, estimating black hole masses from infrared line diagnostics, resolving spectroscopy of gravitationally lensed galaxies and resolving jet dynamics in Herbig-Haro objects.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Ruben Diaz, Mark Rawlings, Ray Sharples, Emanuele Farina, Brian Lemaux, Andrew Stephens, Damian Mast, John White, Turner James, Edo Tapia, Ariadna Calcines, Cornelis Dubbeldam, Jen Miller, Cyril Bourgenot, David Ryder, Ken Parkin, Paul White, Cicero Lu, Tom Geballe, Hawi Stecher, Natalia McCarthy, Jennifer Andrews, Zachary Hartman, Javier Camperi, Hyewon Suh, Pablo Martín, María Agüero, and Siyi Xu "GNIRS integral field spectroscopy modes on-sky performance", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 1309629 (29 July 2024); https://doi.org/10.1117/12.3020524

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available