FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2004455074> ?p ?o ?g. }

• W2004455074 endingPage "1673" @default.
• W2004455074 startingPage "1661" @default.
• W2004455074 abstract "Abstract. We present in situ observations of meteoric smoke particles (MSP) obtained during three sounding rocket flights in December 2010 in the frame of the final campaign of the Norwegian-German ECOMA project (ECOMA = Existence and Charge state Of meteoric smoke particles in the Middle Atmosphere). The flights were conducted before, at the maximum activity, and after the decline of the Geminids which is one of the major meteor showers over the year. Measurements with the ECOMA particle detector yield both profiles of naturally charged particles (Faraday cup measurement) as well as profiles of photoelectrons emitted by the MSPs due to their irradiation by photons of a xenon-flash lamp. The column density of negatively charged MSPs decreased steadily from flight to flight which is in agreement with a corresponding decrease of the sporadic meteor flux recorded during the same period. This implies that the sporadic meteors are a major source of MSPs while the additional influx due to the shower meteors apparently did not play any significant role. Surprisingly, the profiles of photoelectrons are only partly compatible with this observation: while the photoelectron current profiles obtained during the first and third flight of the campaign showed a qualitatively similar behaviour as the MSP charge density data, the profile from the second flight (i.e., at the peak of the Geminids) shows much smaller photoelectron currents. This may tentatively be interpreted as a different MSP composition (and, hence, different photoelectric properties) during this second flight, but at this stage we are not in a position to conclude that there is a cause and effect relation between the Geminids and this observation. Finally, the ECOMA particle detector used during the first and third flight employed three instead of only one xenon flash lamp where each of the three lamps used for one flight had a different window material resulting in different cut off wavelengths for these three lamp types. Taking into account these data along with simple model estimates as well as rigorous quantum chemical calculations, it is argued that constraints on MSP sizes, work function and composition can be inferred. Comparing the measured data to a simple model of the photoelectron currents, we tentatively conclude that we observed MSPs in the 0.5–3 nm size range with generally increasing particle size with decreasing altitude. Notably, this size information can be obtained because different MSP particle sizes are expected to result in different work functions which is both supported by simple classical arguments as well as quantum chemical calculations. Based on this, the MSP work function can be estimated to lie in the range from ~4–4.6 eV. Finally, electronic structure calculations indicate that the low work function of the MSP measured by ECOMA indicates that Fe and Mg hydroxide clusters, rather than metal silicates, are the major constituents of the smoke particles." @default.
• W2004455074 created "2016-06-24" @default.
• W2004455074 creator A5000377568 @default.
• W2004455074 creator A5002343368 @default.
• W2004455074 creator A5030695064 @default.
• W2004455074 creator A5037222986 @default.
• W2004455074 creator A5060409745 @default.
• W2004455074 creator A5077952258 @default.
• W2004455074 creator A5079745645 @default.
• W2004455074 creator A5087269065 @default.
• W2004455074 date "2012-12-12" @default.
• W2004455074 modified "2023-10-09" @default.
• W2004455074 title "In situ observations of meteor smoke particles (MSP) during the Geminids 2010: constraints on MSP size, work function and composition" @default.
• W2004455074 cites W1623104703 @default.
• W2004455074 cites W1965151607 @default.
• W2004455074 cites W1967842151 @default.
• W2004455074 cites W1967994010 @default.
• W2004455074 cites W1975409392 @default.
• W2004455074 cites W1983367473 @default.
• W2004455074 cites W1987318353 @default.
• W2004455074 cites W1994768214 @default.
• W2004455074 cites W1996979150 @default.
• W2004455074 cites W1997686026 @default.
• W2004455074 cites W2002657605 @default.
• W2004455074 cites W2005827495 @default.
• W2004455074 cites W2009298979 @default.
• W2004455074 cites W2017336802 @default.
• W2004455074 cites W2017489418 @default.
• W2004455074 cites W2021829396 @default.
• W2004455074 cites W2040689150 @default.
• W2004455074 cites W2043535092 @default.
• W2004455074 cites W2044542286 @default.
• W2004455074 cites W2047181558 @default.
• W2004455074 cites W2047514830 @default.
• W2004455074 cites W2054195589 @default.
• W2004455074 cites W2057314421 @default.
• W2004455074 cites W2067233063 @default.
• W2004455074 cites W2075739304 @default.
• W2004455074 cites W2079328353 @default.
• W2004455074 cites W2091065185 @default.
• W2004455074 cites W2100088489 @default.
• W2004455074 cites W2124190669 @default.
• W2004455074 cites W2124942875 @default.
• W2004455074 cites W2125520235 @default.
• W2004455074 cites W2131271963 @default.
• W2004455074 cites W2135748644 @default.
• W2004455074 cites W2136656355 @default.
• W2004455074 cites W2138024728 @default.
• W2004455074 cites W2141020382 @default.
• W2004455074 cites W2142445274 @default.
• W2004455074 cites W2145209269 @default.
• W2004455074 cites W2149320921 @default.
• W2004455074 cites W2156124561 @default.
• W2004455074 cites W2156253812 @default.
• W2004455074 cites W2157090610 @default.
• W2004455074 cites W2158077923 @default.
• W2004455074 cites W2331522117 @default.
• W2004455074 doi "https://doi.org/10.5194/angeo-30-1661-2012" @default.
• W2004455074 hasPublicationYear "2012" @default.
• W2004455074 type Work @default.
• W2004455074 sameAs 2004455074 @default.
• W2004455074 citedByCount "41" @default.
• W2004455074 countsByYear W20044550742012 @default.
• W2004455074 countsByYear W20044550742013 @default.
• W2004455074 countsByYear W20044550742014 @default.
• W2004455074 countsByYear W20044550742015 @default.
• W2004455074 countsByYear W20044550742016 @default.
• W2004455074 countsByYear W20044550742017 @default.
• W2004455074 countsByYear W20044550742018 @default.
• W2004455074 countsByYear W20044550742019 @default.
• W2004455074 countsByYear W20044550742021 @default.
• W2004455074 countsByYear W20044550742022 @default.
• W2004455074 countsByYear W20044550742023 @default.
• W2004455074 crossrefType "journal-article" @default.
• W2004455074 hasAuthorship W2004455074A5000377568 @default.
• W2004455074 hasAuthorship W2004455074A5002343368 @default.
• W2004455074 hasAuthorship W2004455074A5030695064 @default.
• W2004455074 hasAuthorship W2004455074A5037222986 @default.
• W2004455074 hasAuthorship W2004455074A5060409745 @default.
• W2004455074 hasAuthorship W2004455074A5077952258 @default.
• W2004455074 hasAuthorship W2004455074A5079745645 @default.
• W2004455074 hasAuthorship W2004455074A5087269065 @default.
• W2004455074 hasBestOaLocation W20044550741 @default.
• W2004455074 hasConcept C10393806 @default.
• W2004455074 hasConcept C120665830 @default.
• W2004455074 hasConcept C121332964 @default.
• W2004455074 hasConcept C1276947 @default.
• W2004455074 hasConcept C168834538 @default.
• W2004455074 hasConcept C180541544 @default.
• W2004455074 hasConcept C2778105581 @default.
• W2004455074 hasConcept C2778212905 @default.
• W2004455074 hasConcept C50774322 @default.
• W2004455074 hasConcept C51091305 @default.
• W2004455074 hasConcept C71570822 @default.
• W2004455074 hasConcept C87355193 @default.
• W2004455074 hasConcept C91586092 @default.
• W2004455074 hasConceptScore W2004455074C10393806 @default.
• W2004455074 hasConceptScore W2004455074C120665830 @default.

• next