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Pluto's interaction with its space environment: Solar wind, energetic particles, and dust.
Bagenal, F; Horányi, M; McComas, D J; McNutt, R L; Elliott, H A; Hill, M E; Brown, L E; Delamere, P A; Kollmann, P; Krimigis, S M; Kusterer, M; Lisse, C M; Mitchell, D G; Piquette, M; Poppe, A R; Strobel, D F; Szalay, J R; Valek, P; Vandegriff, J; Weidner, S; Zirnstein, E J; Stern, S A; Ennico, K; Olkin, C B; Weaver, H A; Young, L A.
Affiliation
  • Bagenal F; Laboratory of Atmospheric and Space Physics, University of Colorado, Boulder, CO 80600, USA. bagenal@colorado.edu.
  • Horányi M; Laboratory of Atmospheric and Space Physics, University of Colorado, Boulder, CO 80600, USA.
  • McComas DJ; Southwest Research Institute, San Antonio, TX 78228, USA. University of Texas at San Antonio, San Antonio, TX 78249, USA.
  • McNutt RL; Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA.
  • Elliott HA; Southwest Research Institute, San Antonio, TX 78228, USA.
  • Hill ME; Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA.
  • Brown LE; Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA.
  • Delamere PA; University of Alaska, Fairbanks, AK 99775, USA.
  • Kollmann P; Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA.
  • Krimigis SM; Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA. Academy of Athens, 28 Panapistimiou, 10679 Athens, Greece.
  • Kusterer M; Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA.
  • Lisse CM; Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA.
  • Mitchell DG; Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA.
  • Piquette M; Laboratory of Atmospheric and Space Physics, University of Colorado, Boulder, CO 80600, USA.
  • Poppe AR; Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA.
  • Strobel DF; Johns Hopkins University, Baltimore, MD 21218, USA.
  • Szalay JR; Laboratory of Atmospheric and Space Physics, University of Colorado, Boulder, CO 80600, USA. Southwest Research Institute, Boulder, CO 80302, USA.
  • Valek P; Southwest Research Institute, San Antonio, TX 78228, USA.
  • Vandegriff J; Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA.
  • Weidner S; Southwest Research Institute, San Antonio, TX 78228, USA.
  • Zirnstein EJ; Southwest Research Institute, San Antonio, TX 78228, USA.
  • Stern SA; Southwest Research Institute, Boulder, CO 80302, USA.
  • Ennico K; NASA Ames Research Center, Moffett Field, CA 94035, USA.
  • Olkin CB; Southwest Research Institute, Boulder, CO 80302, USA.
  • Weaver HA; Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA.
  • Young LA; Southwest Research Institute, Boulder, CO 80302, USA.
Science ; 351(6279): aad9045, 2016 Mar 18.
Article in En | MEDLINE | ID: mdl-26989259
ABSTRACT
The New Horizons spacecraft carried three instruments that measured the space environment near Pluto as it flew by on 14 July 2015. The Solar Wind Around Pluto (SWAP) instrument revealed an interaction region confined sunward of Pluto to within about 6 Pluto radii. The region's surprisingly small size is consistent with a reduced atmospheric escape rate, as well as a particularly high solar wind flux. Observations from the Pluto Energetic Particle Spectrometer Science Investigation (PEPSSI) instrument suggest that ions are accelerated and/or deflected around Pluto. In the wake of the interaction region, PEPSSI observed suprathermal particle fluxes equal to about 1/10 of the flux in the interplanetary medium and increasing with distance downstream. The Venetia Burney Student Dust Counter, which measures grains with radii larger than 1.4 micrometers, detected one candidate impact in ±5 days around New Horizons' closest approach, indicating an upper limit of <4.6 kilometers(-3) for the dust density in the Pluto system.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Science Year: 2016 Document type: Article Affiliation country:
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Science Year: 2016 Document type: Article Affiliation country: