SwePub
Sök i LIBRIS databas

  Utökad sökning

onr:"swepub:oai:DiVA.org:umu-222360"
 

Sökning: onr:"swepub:oai:DiVA.org:umu-222360" > Oxygen production f...

  • Szalay, J.R.Department of Astrophysical Sciences, Princeton University, NJ, Princeton, United States (författare)

Oxygen production from dissociation of Europa’s water-ice surface

  • Artikel/kapitelEngelska2024

Förlag, utgivningsår, omfång ...

  • Springer Nature,2024
  • electronicrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:umu-222360
  • https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-222360URI
  • https://doi.org/10.1038/s41550-024-02206-xDOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Jupiter’s moon Europa has a predominantly water-ice surface that is modified by exposure to its space environment. Charged particles break molecular bonds in surface ice, thus dissociating the water to ultimately produce H2 and O2, which provides a potential oxygenation mechanism for Europa’s subsurface ocean. These species are understood to form Europa’s primary atmospheric constituents. Although remote observations provide important global constraints on Europa’s atmosphere, the molecular O2 abundance has been inferred from atomic O emissions. Europa’s atmospheric composition had never been directly sampled and model-derived oxygen production estimates ranged over several orders of magnitude. Here, we report direct observations of H2+ and O2+ pickup ions from the dissociation of Europa’s water-ice surface and confirm these species are primary atmospheric constituents. In contrast to expectations, we find the H2 neutral atmosphere is dominated by a non-thermal, escaping population. We find 12 ± 6 kg s−1 (2.2 ± 1.2 × 1026 s−1) O2 are produced within Europa’s surface, less than previously thought, with a narrower range to support habitability in Europa’s ocean. This process is found to be Europa’s dominant exogenic surface erosion mechanism over meteoroid bombardment.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Allegrini, F.Southwest Research Institute, TX, San Antonio, United States; Department of Physics and Astronomy, University of Texas at San Antonio, TX, San Antonio, United States (författare)
  • Ebert, R.W.Southwest Research Institute, TX, San Antonio, United States; Department of Physics and Astronomy, University of Texas at San Antonio, TX, San Antonio, United States (författare)
  • Bagenal, F.Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, CO, Boulder, United States (författare)
  • Bolton, S.J.Southwest Research Institute, TX, San Antonio, United States (författare)
  • Fatemi, ShahabUmeå universitet,Institutionen för fysik(Swepub:umu)shfa0016 (författare)
  • McComas, D.J.Department of Astrophysical Sciences, Princeton University, NJ, Princeton, United States (författare)
  • Pontoni, A.Southwest Research Institute, TX, San Antonio, United States (författare)
  • Saur, J.Institute of Geophysics and Meteorology, University of Cologne, Cologne, Germany (författare)
  • Smith, H.T.The Johns Hopkins University Applied Physics Laboratory, MD, Baltimore, United States (författare)
  • Strobel, D.F.The Johns Hopkins University, MD, Baltimore, United States (författare)
  • Vance, S.D.Jet Propulsion Laboratory, California Institute of Technology, CA, Pasadena, United States (författare)
  • Vorburger, A.Physics Institute, University of Bern, Bern, Switzerland (författare)
  • Wilson, R.J.Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, CO, Boulder, United States (författare)
  • Department of Astrophysical Sciences, Princeton University, NJ, Princeton, United StatesSouthwest Research Institute, TX, San Antonio, United States; Department of Physics and Astronomy, University of Texas at San Antonio, TX, San Antonio, United States (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Nature Astronomy: Springer Nature8:5, s. 567-5762397-3366

Internetlänk

Hitta via bibliotek

Till lärosätets databas

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy