Stokes diagnostics of magneto-convection. Profile shapes and asymmetries

Elena Khomenko; Sergiy Shelyag; Sami K. Solanki; Alexander Vögler; Manfred Schüssler

doi:10.1017/S1743921304007112

Stokes diagnostics of magneto-convection. Profile shapes and asymmetries

Elena Khomenko, Sergiy Shelyag, Sami K. Solanki, Alexander Vögler, Manfred Schüssler

Mathematics, Physics and Electrical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

We discuss the polarization signals produced in recent realistic 3D simulations of solar magnetoconvection. The Stokes profiles of the Fe I 6301.5, 6302.5, 15648 and 15652 Å Zeeman-sensitive spectral lines are synthesised and smeared to simulate the image degradation caused by the Earth’s atmosphere and finite telescope resolution. A Principal Component Analysis approach is applied to classify the profiles. We find that the classes of Stokes V profiles as well as their amplitude and area asymmetries are very close to the observations in the network and inter-network regions.

Original language	English
Pages (from-to)	635-636
Journal	Proceedings of the International Astronomical Union
Volume	2004
Issue number	IAUS22
DOIs	https://doi.org/10.1017/S1743921304007112
Publication status	Published - 1 Jun 2004

Keywords

Sun: magnetic fields
Sun: photosphere

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title = "Stokes diagnostics of magneto-convection. Profile shapes and asymmetries",

abstract = "We discuss the polarization signals produced in recent realistic 3D simulations of solar magnetoconvection. The Stokes profiles of the Fe I 6301.5, 6302.5, 15648 and 15652 {\AA} Zeeman-sensitive spectral lines are synthesised and smeared to simulate the image degradation caused by the Earth{\textquoteright}s atmosphere and finite telescope resolution. A Principal Component Analysis approach is applied to classify the profiles. We find that the classes of Stokes V profiles as well as their amplitude and area asymmetries are very close to the observations in the network and inter-network regions.",

keywords = "Sun: magnetic fields, Sun: photosphere",

author = "Elena Khomenko and Sergiy Shelyag and Solanki, {Sami K.} and Alexander V{\"o}gler and Manfred Sch{\"u}ssler",

note = "Published online: 1st June 2004.",

year = "2004",

month = jun,

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doi = "10.1017/S1743921304007112",

language = "English",

volume = "2004",

pages = "635--636",

journal = "Proceedings of the International Astronomical Union",

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TY - JOUR

T1 - Stokes diagnostics of magneto-convection. Profile shapes and asymmetries

AU - Khomenko, Elena

AU - Shelyag, Sergiy

AU - Solanki, Sami K.

AU - Vögler, Alexander

AU - Schüssler, Manfred

N1 - Published online: 1st June 2004.

PY - 2004/6/1

Y1 - 2004/6/1

N2 - We discuss the polarization signals produced in recent realistic 3D simulations of solar magnetoconvection. The Stokes profiles of the Fe I 6301.5, 6302.5, 15648 and 15652 Å Zeeman-sensitive spectral lines are synthesised and smeared to simulate the image degradation caused by the Earth’s atmosphere and finite telescope resolution. A Principal Component Analysis approach is applied to classify the profiles. We find that the classes of Stokes V profiles as well as their amplitude and area asymmetries are very close to the observations in the network and inter-network regions.

AB - We discuss the polarization signals produced in recent realistic 3D simulations of solar magnetoconvection. The Stokes profiles of the Fe I 6301.5, 6302.5, 15648 and 15652 Å Zeeman-sensitive spectral lines are synthesised and smeared to simulate the image degradation caused by the Earth’s atmosphere and finite telescope resolution. A Principal Component Analysis approach is applied to classify the profiles. We find that the classes of Stokes V profiles as well as their amplitude and area asymmetries are very close to the observations in the network and inter-network regions.

KW - Sun: magnetic fields

KW - Sun: photosphere

U2 - 10.1017/S1743921304007112

DO - 10.1017/S1743921304007112

M3 - Article

SN - 1743-9213

VL - 2004

SP - 635

EP - 636

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

IS - IAUS22

ER -

Stokes diagnostics of magneto-convection. Profile shapes and asymmetries

Abstract

Keywords

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