Matches in SemOpenAlex for { <https://semopenalex.org/work/W1995005507> ?p ?o ?g. }
Showing items 1 to 81 of
81
with 100 items per page.
- W1995005507 endingPage "975" @default.
- W1995005507 startingPage "975" @default.
- W1995005507 abstract "view Abstract Citations (164) References (12) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A Model for the Sources of the Slowly Varying Component of Microwave Solar Radiation. Kakinuma, T. ; Swarup, G. Abstract A comparison of the observations of the slowly varying component of the solar radio emission made with high-resolution interferometers operating at wavelengths of 3 2, 7.5, 9.1, and 10.7 cm shows that the flux densities of many strong sources are higher at the longer wavelengths than at 3 cm. The same conclusion is derived from eclipse and statistical investigations, which indicate further that the spectrum of the flux density has a peak around 6 cm. The decrease in flux density with frequency cannot be explained simply by assuming a greater optical thickness for the extraordinary wave near 10 cm in the million-degree corona, as given by the magneto-ionic theory, since the observed degree of polarization at 7 5 or 9 1 cm is much lower than that at 3.2 cm. It is suggested that radiation at the gyro-frequency and its harmonics emitted by the thermal electrons in the dense region over a sunspot group should be taken into account to explain the spectrum of the slowly varying component. This mechanism of resonance absorption requires the average strength of the magnetic field over the sunspot group to be about 600 gauss at a height of 2 x 10 km above the photosphere and 250 gauss at a height of 4 x 10 km In order to explain the observed values of brightness temperature of 1 x t K near 10 cm by the magneto-ionic theory, it is necessary to assume values of electron density of up to 20 or 40 times the normal However, these high values of densities are not required by the gyro-theory, and values of five to ten times the normal are sufficient for explaining simultaneously the observations of brightness temperature, flux density, and polarization. This theory also explains the small size of the source in the range 3-10 cm The radio emission is considered to originate thermally, which requires that the value of the electron temperature in the region of the inner solar corona above a large sunspot group is about 2 x . Publication: The Astrophysical Journal Pub Date: November 1962 DOI: 10.1086/147450 Bibcode: 1962ApJ...136..975K full text sources ADS |" @default.
- W1995005507 created "2016-06-24" @default.
- W1995005507 creator A5079713073 @default.
- W1995005507 creator A5084065346 @default.
- W1995005507 date "1962-11-01" @default.
- W1995005507 modified "2023-09-25" @default.
- W1995005507 title "A Model for the Sources of the Slowly Varying Component of Microwave Solar Radiation." @default.
- W1995005507 doi "https://doi.org/10.1086/147450" @default.
- W1995005507 hasPublicationYear "1962" @default.
- W1995005507 type Work @default.
- W1995005507 sameAs 1995005507 @default.
- W1995005507 citedByCount "152" @default.
- W1995005507 countsByYear W19950055072012 @default.
- W1995005507 countsByYear W19950055072013 @default.
- W1995005507 countsByYear W19950055072015 @default.
- W1995005507 countsByYear W19950055072017 @default.
- W1995005507 countsByYear W19950055072019 @default.
- W1995005507 countsByYear W19950055072020 @default.
- W1995005507 countsByYear W19950055072021 @default.
- W1995005507 countsByYear W19950055072022 @default.
- W1995005507 countsByYear W19950055072023 @default.
- W1995005507 crossrefType "journal-article" @default.
- W1995005507 hasAuthorship W1995005507A5079713073 @default.
- W1995005507 hasAuthorship W1995005507A5084065346 @default.
- W1995005507 hasBestOaLocation W19950055071 @default.
- W1995005507 hasConcept C108884401 @default.
- W1995005507 hasConcept C115260700 @default.
- W1995005507 hasConcept C120665830 @default.
- W1995005507 hasConcept C121332964 @default.
- W1995005507 hasConcept C1276947 @default.
- W1995005507 hasConcept C153385146 @default.
- W1995005507 hasConcept C183682340 @default.
- W1995005507 hasConcept C191897082 @default.
- W1995005507 hasConcept C192562407 @default.
- W1995005507 hasConcept C197370839 @default.
- W1995005507 hasConcept C30475298 @default.
- W1995005507 hasConcept C44838205 @default.
- W1995005507 hasConcept C44870925 @default.
- W1995005507 hasConcept C4839761 @default.
- W1995005507 hasConcept C53802167 @default.
- W1995005507 hasConcept C62520636 @default.
- W1995005507 hasConcept C6260449 @default.
- W1995005507 hasConcept C68709404 @default.
- W1995005507 hasConceptScore W1995005507C108884401 @default.
- W1995005507 hasConceptScore W1995005507C115260700 @default.
- W1995005507 hasConceptScore W1995005507C120665830 @default.
- W1995005507 hasConceptScore W1995005507C121332964 @default.
- W1995005507 hasConceptScore W1995005507C1276947 @default.
- W1995005507 hasConceptScore W1995005507C153385146 @default.
- W1995005507 hasConceptScore W1995005507C183682340 @default.
- W1995005507 hasConceptScore W1995005507C191897082 @default.
- W1995005507 hasConceptScore W1995005507C192562407 @default.
- W1995005507 hasConceptScore W1995005507C197370839 @default.
- W1995005507 hasConceptScore W1995005507C30475298 @default.
- W1995005507 hasConceptScore W1995005507C44838205 @default.
- W1995005507 hasConceptScore W1995005507C44870925 @default.
- W1995005507 hasConceptScore W1995005507C4839761 @default.
- W1995005507 hasConceptScore W1995005507C53802167 @default.
- W1995005507 hasConceptScore W1995005507C62520636 @default.
- W1995005507 hasConceptScore W1995005507C6260449 @default.
- W1995005507 hasConceptScore W1995005507C68709404 @default.
- W1995005507 hasLocation W19950055071 @default.
- W1995005507 hasOpenAccess W1995005507 @default.
- W1995005507 hasPrimaryLocation W19950055071 @default.
- W1995005507 hasRelatedWork W128749164 @default.
- W1995005507 hasRelatedWork W1972018787 @default.
- W1995005507 hasRelatedWork W2002087752 @default.
- W1995005507 hasRelatedWork W2049867958 @default.
- W1995005507 hasRelatedWork W2099138288 @default.
- W1995005507 hasRelatedWork W2115126629 @default.
- W1995005507 hasRelatedWork W2322394769 @default.
- W1995005507 hasRelatedWork W2331555170 @default.
- W1995005507 hasRelatedWork W2010357936 @default.
- W1995005507 hasRelatedWork W2099732566 @default.
- W1995005507 hasVolume "136" @default.
- W1995005507 isParatext "false" @default.
- W1995005507 isRetracted "false" @default.
- W1995005507 magId "1995005507" @default.
- W1995005507 workType "article" @default.