id:"swepub:oai:DiVA.org:su-25699"
Search: id:"swepub:oai:DiVA.org:su-25699" > Observations of pos...
- 1 of 1
- Previous record
- Next record
- To hitlist
Observations of positively charged nanoparticles in the nighttime polar mesosphere
-
- Rapp, Markus (author)
- Stockholms universitet,Meteorologiska institutionen (MISU)
-
- Hedin, Jonas (author)
- Stockholms universitet,Meteorologiska institutionen (MISU)
- Strelnikova, Irina (author)
- show more...
- Friedrich, Martin (author)
- Lübken, Franz-Josef (author)
- show less...
- (creator_code:org_t)
- 2005
- 2005
- English.
- In: Geophysical Research Letters. - 0094-8276 .- 1944-8007. ; 32, s. L23821-
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- We present results of in situ measurements of charged nanoparticles, electrons, and positive ions obtained during a sounding rocket flight in October 2004 from Kiruna, Sweden, under nighttime conditions. The particle measurement reveals positive charge signatures in the altitude range between 80 and 90 km corresponding to peak charge number densities of ∼100 e/cm3 at around 86 km. Aerodynamical analysis of the sampling efficiency of our instrument reveals that the particles must have been larger than 2 nm assuming spherical particles with a density of 3 g/cm3. The plasma environment of the observed particles is dominated by negative and positive ions, with only few free electrons. A calculation of the mean particle charge expected for particles in a plasma consisting of electrons and positive and negative ions shows that the presence of sufficiently heavy and numerous negative ions (i.e., m n > 300 amu and λ ≥ 50) can explain the observed positive particle charge.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
Keyword
- Atmosphere and hydrosphere sciences
- Atmosfärs- och hydrosfärsvetenskap
- atmosfärvetenskap
- Atmospheric Sciences
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Geophysical Research Letters (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Rapp, Markus
- Hedin, Jonas
- Strelnikova, Iri ...
- Friedrich, Marti ...
- Gumbel, Jörg
- Lübken, Franz-Jo ...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Earth and Relate ...
- and Meteorology and ...
- Articles in the publication
- Geophysical Rese ...
- By the university
- Stockholm University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
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.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
