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Santos‐Costa, D.; Adumitroaie, V.; Ingersoll, A.; Gulkis, S.; Janssen, M. A.; Levin, S. M.; Oyafuso, F.; Brown, S.; Williamson, R.; Bolton, S. J.; Connerney, J. E. P.
Geophysical research letters, 16 September 2017, Letnik: 44, Številka: 17Journal Article
Since August 2016, measurements of Jupiter's microwave emissions at six wavelengths ranging from 1.3 cm to 50 cm have been made with the Juno Microwave Radiometer. In this paper, we introduce the first systematic set of in situ observations of synchrotron radiation in a polar plane while describing the modeling approach we use to analyze this data (collected 27 August 2016). Time series of brightness profiles at all six frequencies present similarities that are explained by the presence of known regions of intense synchrotron radiation. Our model predictions, though limited for now to the total intensity of the radiation, reproduce (qualitatively) the observation of temporal variations and allow to disentangle the synchrotron emission from the atmospheric emission. The discrepancies seen between the data and simulations confirm that physical conditions close to Jupiter affecting synchrotron emission (electron energy spectra, pitch angle distributions, and the magnetic environment) are different than we anticipated. Key Points Juno's first observations of synchrotron emission measured from pole to pole within two planetary radii from Jupiter First models of the synchrotron emission which utilize spacecraft in situ, ground‐based and Juno's microwave observations Synchrotron observations from Juno are used to disentangle the synchrotron emission from the atmospheric emission
Vnos na polico
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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