The InfraRed Imaging Spectrograph (IRIS) for TMT: photometric characterization of anisoplanatic PSFs and testing of PSF-Reconstruction via AIROPA
| Autor: | James E. Larkin, Paolo Turri, Shelley A. Wright, Edward L. Chapin, Gregory Walth, Jennifer Dunn, Nils Rundquist, Matthias Schoeck, Ji Man Sohn, Eric Chisholm, Tuan Dod, Jessica R. Lu, Arun Surya, Andrea Zonca, Ryuji Suzuki, Yutaka Hayano, Andrea M. Ghez, Chris R. Johnson, Reed Riddle |
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| Přispěvatelé: | Evans, Christopher J., Bryant, Julia J., Motohara, Kentaro |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Point spread function
Thirty Meter Telescope instrumentation: near-infrared giant segmented mirror telescopes: Thirty Meter Telescope point spread functions Computer science FOS: Physical sciences iterated function systems Field of view Astrophysics::Cosmology and Extragalactic Astrophysics imaging systems 01 natural sciences Iris flower data set adaptive optics 010309 optics Optics Integral field spectrograph IRIS Consortium 0103 physical sciences infrared:imaging Adaptive optics Instrumentation and Methods for Astrophysics (astro-ph.IM) 010303 astronomy & astrophysics Spectrograph device simulation business.industry Astrophysics::Instrumentation and Methods for Astrophysics Computer Science::Computer Vision and Pattern Recognition infrared imaging spectrograph data:simulator imaging:photometric infrared telescopes IRIS (biosensor) Astrophysics::Earth and Planetary Astrophysics business Astrophysics - Instrumentation and Methods for Astrophysics monte carlo methods |
| Popis: | The InfraRed Imaging Spectrograph (IRIS) is a first-light instrument for the Thirty Meter Telescope (TMT) that will be used to sample the corrected adaptive optics field by the Narrow-Field Infrared Adaptive Optics System (NFIRAOS) with a near-infrared (0.8 - 2.4 µm) imaging camera and integral field spectrograph. To better understand IRIS science specifications we use the IRIS data simulator to characterize relative photometric precision and accuracy across the IRIS imaging camera 34”x34” field of view. Because the Point Spread Function (PSF) varies due to the effects of anisoplanatism, we use the Anisoplanatic and Instrumental Reconstruction of Off-axis PSFs for AO (AIROPA) software package to conduct photometric measurements on simulated frames using PSF-fitting as the PSF varies in single-source, binary, and crowded field use cases. We report photometric performance of the imaging camera as a function of the instrumental noise properties including dark current and read noise. Using the same methods, we conduct comparisons of photometric performance with reconstructed PSFs, in order to test the veracity of the current PSF-Reconstruction algorithms for IRIS/TMT. Ground-based and Airborne Instrumentation for Astronomy VIII, December 14-18, 2020, Online Only, United States Series: Proceedings of SPIE |
| Databáze: | OpenAIRE |
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