Photometric properties of resolved and unresolved magnetic elements

Abstract

We investigate the photometric signature of magnetic flux tubes in the solar photosphere. We developed two dimensional, static numerical models of isolated and clustered magnetic flux tubes. We investigated the emergent intensity profiles at different lines-of-sight for various spatial resolutions and opacity models. We found that both geometric and photometric properties of bright magnetic features are determined not only by the physical properties of the tube and its surroundings, but also by the particularities of the observations, including the line/continuum formation height, the spatial resolution and the image analyses techniques applied. We show that some observational results presented in the literature can be interpreted by considering bright magnetic features to be clusters of smaller elements, rather than a monolithic flux tube.

12 pages

References in corpus (5)

• Dynamics of the Solar Magnetic Network: Two-dimensional MHD Simulations
• Motions of Isolated G-Band Bright Points in the Solar Photosphere
• Relationships between magnetic foot points and G-band bright structures
• The contrast of magnetic elements in synthetic CH- and CN-band images of solar magnetoconvection
• The photospheric environment of a solar pore with light bridge

Cited by in corpus (11)

• Critical Science Plan for the Daniel K. Inouye Solar Telescope (DKIST)
• Imaging Spectropolarimetry with IBIS II: on the fine structure of G-band bright features
• Comparison of physical properties of quiet and active regions through the analysis of MHD simulations of the solar photosphere
• The Intensity Profile of the Solar Supergranulation
• Photometric Properties of Network and Faculae Derived from HMI Data Compensated for Scattered-Light
• The statistical distribution of magnetic field strength in G-band bright points
• Angular dependence of the facular-sunspot coverage relation as derived by MDI magnetograms
• Effects of unresolved magnetic field on Fe I 617.3 and 630.2 nm line shapes
• Variations of magnetic bright point properties with longitude and latitude as observed by Hinode/SOT G-band data
• A study of solar photospheric temperature gradient variation using limb darkening measurements
• An Assessment of and Solution to the Intensity Diffusion Error Intrinsic to Short-Characteristic Radiative Transfer Methods