Matches in SemOpenAlex for { <https://semopenalex.org/work/W2079409301> ?p ?o ?g. }
Showing items 1 to 81 of
81
with 100 items per page.
- W2079409301 endingPage "4157" @default.
- W2079409301 startingPage "4145" @default.
- W2079409301 abstract "The intensity of incoherent Cerenkov radiation in the dayside polar-cusp region has been estimated by including the very soft (100 ev to 1 kev) energy range, which recent experimental results have shown to be the source of broad-band auroral hiss at least on the dayside of the earth. Our results show that, for an electron flux spectrum of the approximate form dJ/dE ∝ E−2, electrons in the range 100 ev to 1 kev contribute about 2 orders of magnitude more to the intensity of Cerenkov hiss than those in the range 1–10 kev. If the electron flux is assumed to have the value of 5 × 105 el cm−2 sec−1 ster−1 ev−1 at 700 ev, a peak Cerenkov hiss intensity of ≃10−13 w m−2 Hz−1 results at ionospheric heights at ≃70 kHz and decreases in intensity toward both lower and higher frequencies. A limitation of the present theories is pointed out, and the possible role of anomalous cyclotron radiation in the auroral hiss generation is discussed. It is concluded that, even if the generation mechanism is not totally incoherent, as has been assumed in the calculations, it almost certainly involves electrons that are moving faster than the wave. If the calculations are repeated at a lower latitude, appropriate to the nightside auroral hiss zone, essentially identical results are obtained if the dayside model ionosphere and the dayside electron flux spectrum are used. These results indicate that, if incoherent Cerenkov radiation is the source of auroral hiss, the generally weaker hiss on the nightside of the earth must be due to lower electron fluxes, harder spectra, lower magnetospheric electron densities, or a combination of these factors." @default.
- W2079409301 created "2016-06-24" @default.
- W2079409301 creator A5058182290 @default.
- W2079409301 creator A5068030809 @default.
- W2079409301 date "1972-08-01" @default.
- W2079409301 modified "2023-09-26" @default.
- W2079409301 title "An evaluation of the intensity of cerenkov radiation from auroral electrons with energies down to 100 ev" @default.
- W2079409301 cites W1964273647 @default.
- W2079409301 cites W1969289312 @default.
- W2079409301 cites W1974158510 @default.
- W2079409301 cites W1976954839 @default.
- W2079409301 cites W1999351057 @default.
- W2079409301 cites W1999528717 @default.
- W2079409301 cites W2026536395 @default.
- W2079409301 cites W2028760629 @default.
- W2079409301 cites W2042117493 @default.
- W2079409301 cites W2047410059 @default.
- W2079409301 cites W2076179865 @default.
- W2079409301 cites W2089580758 @default.
- W2079409301 cites W2110770664 @default.
- W2079409301 cites W2116707525 @default.
- W2079409301 cites W2132023835 @default.
- W2079409301 cites W2137623397 @default.
- W2079409301 cites W2155936832 @default.
- W2079409301 cites W82127355 @default.
- W2079409301 doi "https://doi.org/10.1029/ja077i022p04145" @default.
- W2079409301 hasPublicationYear "1972" @default.
- W2079409301 type Work @default.
- W2079409301 sameAs 2079409301 @default.
- W2079409301 citedByCount "43" @default.
- W2079409301 countsByYear W20794093012023 @default.
- W2079409301 crossrefType "journal-article" @default.
- W2079409301 hasAuthorship W2079409301A5058182290 @default.
- W2079409301 hasAuthorship W2079409301A5068030809 @default.
- W2079409301 hasConcept C120665830 @default.
- W2079409301 hasConcept C121332964 @default.
- W2079409301 hasConcept C130443932 @default.
- W2079409301 hasConcept C147120987 @default.
- W2079409301 hasConcept C153385146 @default.
- W2079409301 hasConcept C184779094 @default.
- W2079409301 hasConcept C185544564 @default.
- W2079409301 hasConcept C2777795277 @default.
- W2079409301 hasConcept C30475298 @default.
- W2079409301 hasConcept C72591435 @default.
- W2079409301 hasConcept C82706917 @default.
- W2079409301 hasConcept C93038891 @default.
- W2079409301 hasConcept C94915269 @default.
- W2079409301 hasConceptScore W2079409301C120665830 @default.
- W2079409301 hasConceptScore W2079409301C121332964 @default.
- W2079409301 hasConceptScore W2079409301C130443932 @default.
- W2079409301 hasConceptScore W2079409301C147120987 @default.
- W2079409301 hasConceptScore W2079409301C153385146 @default.
- W2079409301 hasConceptScore W2079409301C184779094 @default.
- W2079409301 hasConceptScore W2079409301C185544564 @default.
- W2079409301 hasConceptScore W2079409301C2777795277 @default.
- W2079409301 hasConceptScore W2079409301C30475298 @default.
- W2079409301 hasConceptScore W2079409301C72591435 @default.
- W2079409301 hasConceptScore W2079409301C82706917 @default.
- W2079409301 hasConceptScore W2079409301C93038891 @default.
- W2079409301 hasConceptScore W2079409301C94915269 @default.
- W2079409301 hasIssue "22" @default.
- W2079409301 hasLocation W20794093011 @default.
- W2079409301 hasOpenAccess W2079409301 @default.
- W2079409301 hasPrimaryLocation W20794093011 @default.
- W2079409301 hasRelatedWork W1637573654 @default.
- W2079409301 hasRelatedWork W1983770374 @default.
- W2079409301 hasRelatedWork W2005054642 @default.
- W2079409301 hasRelatedWork W2070854991 @default.
- W2079409301 hasRelatedWork W2083976307 @default.
- W2079409301 hasRelatedWork W2161365998 @default.
- W2079409301 hasRelatedWork W2188033814 @default.
- W2079409301 hasRelatedWork W2334620464 @default.
- W2079409301 hasRelatedWork W2568560192 @default.
- W2079409301 hasRelatedWork W3104083206 @default.
- W2079409301 hasVolume "77" @default.
- W2079409301 isParatext "false" @default.
- W2079409301 isRetracted "false" @default.
- W2079409301 magId "2079409301" @default.
- W2079409301 workType "article" @default.