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Proceedings Paper

The AIROPA software package: milestones for testing general relativity in the strong gravity regime with AO
Author(s): Gunther Witzel; Jessica R. Lu; Andrea M. Ghez; Gregory D. Martinez; Michael P. Fitzgerald; Matthew Britton; Breann N. Sitarski; Tuan Do; Randall D. Campbell; Maxwell Service; Keith Matthews; Mark R. Morris; E. E. Becklin; Peter L. Wizinowich; Sam Ragland; Greg Doppmann; Chris Neyman; James Lyke; Marc Kassis; Luca Rizzi; Scott Lilley; Rachel Rampy
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Paper Abstract

General relativity can be tested in the strong gravity regime by monitoring stars orbiting the supermassive black hole at the Galactic Center with adaptive optics. However, the limiting source of uncertainty is the spatial PSF variability due to atmospheric anisoplanatism and instrumental aberrations. The Galactic Center Group at UCLA has completed a project developing algorithms to predict PSF variability for Keck AO images. We have created a new software package (AIROPA), based on modified versions of StarFinder and Arroyo, that takes atmospheric turbulence profiles, instrumental aberration maps, and images as inputs and delivers improved photometry and astrometry on crowded fields. This software package will be made publicly available soon.

Paper Details

Date Published: 2 September 2016
PDF: 13 pages
Proc. SPIE 9909, Adaptive Optics Systems V, 99091O (2 September 2016); doi: 10.1117/12.2233872
Show Author Affiliations
Gunther Witzel, Univ. of California, Los Angeles (United States)
Jessica R. Lu, Univ. of Hawaii (United States)
Andrea M. Ghez, Univ. of California, Los Angeles (United States)
Gregory D. Martinez, Univ. of California, Los Angeles (United States)
Michael P. Fitzgerald, Univ. of California, Los Angeles (United States)
Matthew Britton, The Aerospace Corp. (United States)
Breann N. Sitarski, Univ. of California, Los Angeles (United States)
Tuan Do, Univ. of California, Los Angeles (United States)
Randall D. Campbell, W. M. Keck Observatory (United States)
Maxwell Service, Univ. of Hawaii (United States)
Keith Matthews, California Institute of Technology (United States)
Mark R. Morris, Univ. of California, Los Angeles (United States)
E. E. Becklin, Univ. of California, Los Angeles (United States)
Peter L. Wizinowich, W. M. Keck Observatory (United States)
Sam Ragland, W. M. Keck Observatory (United States)
Greg Doppmann, Univ. of Hawaii (United States)
Chris Neyman, W. M. Keck Observatory (United States)
James Lyke, W. M. Keck Observatory (United States)
Marc Kassis, W. M. Keck Observatory (United States)
Luca Rizzi, W. M. Keck Observatory (United States)
Scott Lilley, W. M. Keck Observatory (United States)
Rachel Rampy, W. M. Keck Observatory (United States)


Published in SPIE Proceedings Vol. 9909:
Adaptive Optics Systems V
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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