Solar Radio Granulation at Microwaves and Its Optical Identification

Gelfreikh, G. B.; Bogod, V. M.; Коржавин, А. Н.; Kononovich, E. V.; Smirnova, O. B.; Startsev, S. V.; Piotrovich, V. V.

doi:10.1007/978-94-009-7846-1_27

Cited by 3 publications

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“…Aschwanden et al (2007) considered a number of arguments that point to the heating processes in the chromosphere. One of the main problems here is the magnetic complexity in transition region, so it is very difficult to trace the magnetic connectivity from coronal loops down to the photosphere (Jendersie and Peter, 2006).…”

Section: Discussionmentioning

confidence: 99%

RATAN-600 Observations of Small Scale Structures with High Spectral Resolution

Bogod,

Alissandrakis,

Kaltman

et al. 2014

Preprint

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We present observations of quiet-sun small-scale structures (SSS) in the microwave range with the Radio Astronomical Telescope of the Academy of Sciences 600 (RATAN-600) spectral-polarization facility in a wide range of frequencies. SSS are regularly recorded in routine observations of the large reflector-type radio telescope and represent manifestations in the radio range of various structures of the quiet-sun: supergranulation network, bright points, plage patches and so on. A comparison with with images from the Solar Dynamics Observatory (SDO) showed that the microwave emission comes from a region extending from the chromosphere to the low transition region. We measured the properties of the SSS as well as the degree of circular polarization averaged over the beam of the radio telescope and from this we estimated the magnetic field at the formation level of the radiation.

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Section: Discussionmentioning

confidence: 99%

RATAN-600 Observations of Small Scale Structures with High Spectral Resolution

Bogod,

Alissandrakis,

Kaltman

et al. 2014

Preprint

Self Cite

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Inner corona from solar radio observations

Gelfreikh¹

1991

Advances in Space Research

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VI. Solar Radiophysics

Stewart¹

1985

Trans. Int. Astron. Union

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The past 3 years since the last solar maximum have witnessed an unprecedented number (>200) of published scientific papers on many aspects of solar radiophysics. These contributions are the result of an intense research effort mounted during the first Solar Maximum Mission of 1980 and continued until the present. Excellent x-ray, EUV, and visible light observations of the disturbed corona and transition region have been obtained from the SMM, Hinotori, P78-1, and ISEE-3 spacecraft. ISEE-3 also has provided very low-frequency radio observations of solar bursts in the interplanetary medium. Ground-based radio support for space experiments has been provided by many observatories throughout the world. In particular, many collaborative studies using x-ray and radio observations of solar flares have been reported. The outstanding radio instrument during this period has been the VLA, operating at 2, 6, and 20 cm with a time resolution of 10 s and both modes of circular polarization. The two-dimensional spatial resolution of the radio images is a few seconds of arc, almost as good as the best resolution obtained so far at any wavelength in the solar spectrum. To complement the rather poor time resolution of the VLA one-dimensional arrays such as the WSRT at 6 cm wavelength and the Nobeyama interferometer at 17 GHz have been used successfully. In addition, a number of very-high-time resolution radiometers have been built at different locations. At meter wavelengths two-dimensional arrays at Clark Lake, Culgoora, and Nancay and a one-dimensional array at Nobeyama have been employed. The little known region of the solar spectrum at decimeter wavelengths is being investigated by the Zurich spectrograph. It is pleasing to see Chinese participation in solar radiophysics.

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Solar Radio Granulation at Microwaves and Its Optical Identification

Cited by 3 publications

References 3 publications

RATAN-600 Observations of Small Scale Structures with High Spectral Resolution

RATAN-600 Observations of Small Scale Structures with High Spectral Resolution

Inner corona from solar radio observations

VI. Solar Radiophysics

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