activity
20072009
most citedPCA detection and denoising of Zeeman signatures in stellar polarised spectra

54 citations · 185 across the 7 of their papers we have counts for

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5 papers · 1 filter

astro-ph2008★ 37 cited

A fast method for Stokes profile synthesis -- Radiative transfer modeling for ZDI and Stokes profile inversion

T. A. Carroll, M. Kopf, K. G. Strassmeier

The major challenges for a fully polarized radiative transfer driven approach to Zeeman-Doppler imaging are still the enormous computational requirements. In every cycle of the ite…

astro-ph2008★ 54 cited

PCA detection and denoising of Zeeman signatures in stellar polarised spectra

M. J. Martinez Gonzalez, A. Asensio Ramos, T. A. Carroll +3

Our main objective is to develop a denoising strategy to increase the signal to noise ratio of individual spectral lines of stellar spectropolarimetric observations. We use a multi…

astro-ph2008★ 29 cited

Zeeman-Tomography of the Solar Photosphere -- 3-Dimensional Surface Structures Retrieved from Hinode Observations

T. A. Carroll, M. Kopf

AIMS :The thermodynamic and magnetic field structure of the solar photosphere is analyzed by means of a novel 3-dimensional spectropolarimetric inversion and reconstruction techniq…

astro-ph2008★ 36 cited

Zeeman-Doppler Imaging of Late-Type Stars -- The Surface Magnetic Field of II Peg

T. A. Carroll, M. Kopf, I. Ilyin +1

Late-type stars in general possess complicated magnetic surface fields which makes their detection and in particular their modeling and reconstruction challenging. In this work we…

astro-ph2007★ 18 cited

The Meso-Structured Magnetic Atmosphere -- A Stochastic Polarized Radiative Transfer Approach

T. A. Carroll, M. Kopf

We present a general radiative transfer model which allows the Zeeman diagnostics of complex and unresolved solar magnetic fields. Present modeling techniques still rely to a large…