Simulation and analysis of VIM measurements: feedback on design parameters

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dc.creatorSuarez, D. Orozco
dc.creatorRubio, L. R. Bellot
dc.creatorDominguez, S. Vargas
dc.creatorBonet, J. A.
dc.creatorPillet, V. Martinez
dc.creatorIniesta, J. C. del Toro
dc.date2006-11-14
dc.date.accessioned2026-07-07T07:50:44Z
dc.date.available2026-07-07T07:50:44Z
dc.descriptionThe Visible-light Imager and Magnetograph (VIM) proposed for the ESA Solar Orbiter mission will observe a photospheric spectral line at high spatial resolution. Here we simulate and interpret VIM measurements. Realistic MHD models are used to synthesize "observed" Stokes profiles of the photospheric Fe I 617.3 nm line. The profiles are degraded by telescope diffraction and detector pixel size to a spatial resolution of 162 km on the solar surface. We study the influence of spectral resolving power, noise, and limited wavelength sampling on the vector magnetic fields and line-of-sight velocities derived from Milne-Eddington inversions of the simulated measurements. VIM will provide reasonably accurate values of the atmospheric parameters even with filter widths of 120 mA and 3 wavelength positions plus continuum, as long as the noise level is kept below 10^-3 I_c.
dc.description6 pages, 7 figures. Submitted to the proceedings of the conference "The Second Solar Orbiter Workshop", 2006 October 16-20, Athens. To be published by the ESA Publications conference Proceedings
dc.identifierhttps://arxiv.org/abs/astro-ph/0611443
dc.identifierhttp://arxiv.org/abs/astro-ph/0611443
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/125263
dc.subjectAstrophysics
dc.titleSimulation and analysis of VIM measurements: feedback on design parameters
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