Some results of the chromospheric magnetic field study based on millimeter wave observations of active regions

Solar radio observations combined with unique methods of radio diagnostics of solar plasma are capable to provide an estimate of the magnetic field above the photospheric level. In the paper we present some results of the study of magnetic fields in the solar chromosphere of active regions associate...

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Detalles Bibliográficos
Publicado:	2002
Materias:	Chromosphere Radio Sun Extrapolation Magnetic fields Millimeter waves Chromospheric magnetic field Gyroradiation processes Gyroresonance microwave emission Astrophysics
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03796566_v_n505_p481_Loukitcheva http://hdl.handle.net/20.500.12110/paper_03796566_v_n505_p481_Loukitcheva
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_03796566_v_n505_p481_Loukitcheva
record_format	dspace
spelling	paper:paper_03796566_v_n505_p481_Loukitcheva2023-06-08T15:40:40Z Some results of the chromospheric magnetic field study based on millimeter wave observations of active regions Chromosphere Radio Sun Extrapolation Magnetic fields Millimeter waves Radio Sun Chromospheric magnetic field Gyroradiation processes Gyroresonance microwave emission Astrophysics Solar radio observations combined with unique methods of radio diagnostics of solar plasma are capable to provide an estimate of the magnetic field above the photospheric level. In the paper we present some results of the study of magnetic fields in the solar chromosphere of active regions associated with sunspots and plages through observations of their free-free and gyroresonance microwave emission in intensity and polarization obtained with Nobeyama radioheliograph at 17.6 mm and 8 mm wavelengths. The contributions to millimeter and short centimeter emission of active regions from the free-free and gyroradiation processes are discussed. Two-dimensional intensity maps and radiomagnetograms with 10 and 5 arcsec resolution are compared with the SXT/Yohkoh observations and with the chromospheric fields obtained by extrapolating the KP/NSO observed photospheric field to the chromosphere using a potential model of the magnetic field. 2002 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03796566_v_n505_p481_Loukitcheva http://hdl.handle.net/20.500.12110/paper_03796566_v_n505_p481_Loukitcheva
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Chromosphere Radio Sun Extrapolation Magnetic fields Millimeter waves Radio Sun Chromospheric magnetic field Gyroradiation processes Gyroresonance microwave emission Astrophysics
spellingShingle	Chromosphere Radio Sun Extrapolation Magnetic fields Millimeter waves Radio Sun Chromospheric magnetic field Gyroradiation processes Gyroresonance microwave emission Astrophysics Some results of the chromospheric magnetic field study based on millimeter wave observations of active regions
topic_facet	Chromosphere Radio Sun Extrapolation Magnetic fields Millimeter waves Radio Sun Chromospheric magnetic field Gyroradiation processes Gyroresonance microwave emission Astrophysics
description	Solar radio observations combined with unique methods of radio diagnostics of solar plasma are capable to provide an estimate of the magnetic field above the photospheric level. In the paper we present some results of the study of magnetic fields in the solar chromosphere of active regions associated with sunspots and plages through observations of their free-free and gyroresonance microwave emission in intensity and polarization obtained with Nobeyama radioheliograph at 17.6 mm and 8 mm wavelengths. The contributions to millimeter and short centimeter emission of active regions from the free-free and gyroradiation processes are discussed. Two-dimensional intensity maps and radiomagnetograms with 10 and 5 arcsec resolution are compared with the SXT/Yohkoh observations and with the chromospheric fields obtained by extrapolating the KP/NSO observed photospheric field to the chromosphere using a potential model of the magnetic field.
title	Some results of the chromospheric magnetic field study based on millimeter wave observations of active regions
title_short	Some results of the chromospheric magnetic field study based on millimeter wave observations of active regions
title_full	Some results of the chromospheric magnetic field study based on millimeter wave observations of active regions
title_fullStr	Some results of the chromospheric magnetic field study based on millimeter wave observations of active regions
title_full_unstemmed	Some results of the chromospheric magnetic field study based on millimeter wave observations of active regions
title_sort	some results of the chromospheric magnetic field study based on millimeter wave observations of active regions
publishDate	2002
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03796566_v_n505_p481_Loukitcheva http://hdl.handle.net/20.500.12110/paper_03796566_v_n505_p481_Loukitcheva
_version_	1768545695905611776

Some results of the chromospheric magnetic field study based on millimeter wave observations of active regions

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