Reducing Ground-based Astrometric Errors with Gaia and Gaussian Processes

Stochastic field distortions caused by atmospheric turbulence are a fundamental limitation to the astrometric accuracy of ground-based imaging. This distortion field is measurable at the locations of stars with accurate positions provided by the Gaia DR2 catalog; we develop the use of Gaussian proce...

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Veröffentlicht in:	The Astronomical journal 2021-09, Vol.162 (3), p.106
Hauptverfasser:	Fortino, W. F., Bernstein, G. M., Bernardinelli, P. H., Aguena, M., Allam, S., Annis, J., Bacon, D., Bechtol, K., Bhargava, S., Brooks, D., Burke, D. L., Carretero, J., Choi, A., Costanzi, M., Costa, L. N. da, Pereira, M. E. S., De Vicente, J., Desai, S., Doel, P., Drlica-Wagner, A., Eckert, K., Eifler, T. F., Evrard, A. E., Ferrero, I., Frieman, J., García-Bellido, J., Gaztañaga, E., Gerdes, D. W., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hartley, W. G., Hinton, S. R., Hollowood, D. L., Honscheid, K., James, D. J., Jarvis, M., Kent, S., Kuehn, K., Kuropatkin, N., Maia, M. A. G., Marshall, J. L., Menanteau, F., Miquel, R., Morgan, R., Myles, J., Ogando, R. L. C., Palmese, A., Paz-Chinchón, F., Plazas, A. A., Roodman, A., Rykoff, E. S., Sanchez, E., Santiago, B., Scarpine, V., Schubnell, M., Serrano, S., Sevilla-Noarbe, I., Smith, M., Suchyta, E., Tarle, G., To, C., Tucker, D. L., Varga, T. N., Walker, A. R., Weller, J., Wester, W.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astrometry Astronomy Astronomy data analysis Atmospheric turbulence Dark energy Distortion Eris (dwarf planet) Exposure Gaussian process INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY Sky noise Sky surveys (astronomy) Trans-Neptunian objects
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