A pulsating auroral X-ray hot spot on Jupiter
dc.contributor.author | Gladstone, G. R. | en_US |
dc.contributor.author | Waite, J. Hunter | en_US |
dc.contributor.author | Grodent, D. | en_US |
dc.contributor.author | Lewis, W. S. | en_US |
dc.contributor.author | Crary, F. J. | en_US |
dc.contributor.author | Elsner, R. F. | en_US |
dc.contributor.author | Weisskopf, M. C. | en_US |
dc.contributor.author | Majeed, T. | en_US |
dc.contributor.author | Jahn, J. M. | en_US |
dc.contributor.author | Bhardwaj, A. | en_US |
dc.contributor.author | Clarke, J. T. | en_US |
dc.contributor.author | Young, D. T. | en_US |
dc.contributor.author | Dougherty, M. K. | en_US |
dc.contributor.author | Espinosa, S. A. | en_US |
dc.contributor.author | Cravens, Tom E. | en_US |
dc.date.accessioned | 2009-06-01T17:27:23Z | |
dc.date.available | 2009-06-01T17:27:23Z | |
dc.date.issued | 2002-02-28 | en_US |
dc.identifier.citation | Gladstone, GR; Waite, JH; Grodent, D; Lewis, WS; Crary, FJ; Elsner, RF; Weisskopf, MC; Majeed, T; Jahn, JM; Bhardwaj, A; Clarke, JT; Young, DT; Dougherty, MK; Espinosa, SA; Cravens, TE. (2002) "A pulsating auroral X-ray hot spot on Jupiter." Nature 415(6875): 1000-1003. <http://hdl.handle.net/2027.42/62624> | en_US |
dc.identifier.issn | 0028-0836 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/62624 | |
dc.identifier.uri | http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=11875561&dopt=citation | en_US |
dc.description.abstract | Jupiter's X-ray aurora has been thought to be excited by energetic sulphur and oxygen ions precipitating from the inner magnetosphere into the planet's polar regions(1-3). Here we report high-spatial-resolution observations that demonstrate that most of Jupiter's northern auroral X-rays come from a 'hot spot' located significantly poleward of the latitudes connected to the inner magnetosphere. The hot spot seems to be fixed in magnetic latitude and longitude and occurs in a region where anomalous infrared(4-7) and ultraviolet(8) emissions have also been observed. We infer from the data that the particles that excite the aurora originate in the outer magnetosphere. The hot spot X-rays pulsate with an approximately 45-min period, a period similar to that reported for high-latitude radio and energetic electron bursts observed by near-Jupiter spacecraft(9,10). These results invalidate the idea that jovian auroral X-ray emissions are mainly excited by steady precipitation of energetic heavy ions from the inner magnetosphere. Instead, the X-rays seem to result from currently unexplained processes in the outer magnetosphere that produce highly localized and highly variable emissions over an extremely wide range of wavelengths. | en_US |
dc.format.extent | 419430 bytes | |
dc.format.extent | 2489 bytes | |
dc.format.mimetype | application/octet-stream | |
dc.format.mimetype | text/plain | |
dc.publisher | Nature Publishing Group | en_US |
dc.source | Nature | en_US |
dc.title | A pulsating auroral X-ray hot spot on Jupiter | en_US |
dc.type | Article | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Univ Michigan, Ann Arbor, MI 48109 USA | en_US |
dc.contributor.affiliationother | SW Res Inst, San Antonio, TX 78228 USA | en_US |
dc.contributor.affiliationother | NASA, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA | en_US |
dc.contributor.affiliationother | Vikram Sarabhai Space Ctr, Trivandrum 695022, Kerala, India | en_US |
dc.contributor.affiliationother | Boston Univ, Boston, MA 02215 USA | en_US |
dc.contributor.affiliationother | Univ London Imperial Coll Sci & Technol, Blackett Lab, London SW7 2BZ, England | en_US |
dc.contributor.affiliationother | Max Planck Inst Aeron, D-37191 Katlenburg Lindau, Germany | en_US |
dc.contributor.affiliationother | Univ Kansas, Lawrence, KS 66045 USA | en_US |
dc.identifier.pmid | 11875561 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/62624/1/4151000a.pdf | |
dc.identifier.doi | http://dx.doi.org/10.1038/4151000a | en_US |
dc.identifier.source | Nature | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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