% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Henning:22986,
      author       = {Henning, S. and Ziese, M. and Kiselev, A. and Saathoff, H.
                      and Möhler, O. and Mentel, T.F. and Buchholz, A. and
                      Spindler, C. and Michaud, V. and Monier, M. and Sellegri, K.
                      and Stratmann, F.},
      title        = {{H}ygroscopic growth and droplet activation of soot
                      particles: uncoated, succinic or sulfuric acid coated},
      journal      = {Atmospheric chemistry and physics},
      volume       = {12},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {PreJuSER-22986},
      pages        = {4525 - 4537},
      year         = {2012},
      note         = {We are grateful for financial support by the Helmholtz
                      Virtual Institute "Aerosol Cloud Interaction" (VI-ACI).
                      Traveling expenses of the LaMP group as well as the VHTDMA
                      transport were funded by the ESF programme INTROP, which we
                      would like to acknowledge here. Furthermore, we would like
                      to thank Stefan Benz for coordinating the IN-11 campaign at
                      the AIDA facility.},
      abstract     = {The hygroscopic growth and droplet activation of uncoated
                      soot particles and such coated with succinic acid and
                      sulfuric acid were investigated during the IN-11 campaign at
                      the Aerosol Interaction and Dynamics in the Atmosphere
                      (AIDA) facility. A GFG-1000 soot generator applying either
                      nitrogen or argon as carrier gas and a miniCAST soot
                      generator were utilized to generate soot particles.
                      Different organic carbon (OC) to black carbon (BC) ratios
                      were adjusted for the CAST-soot by varying the fuel to air
                      ratio. The hygroscopic growth was investigated by means of
                      the mobile Leipzig Aerosol Cloud Interaction Simulator
                      (LACIS-mobile) and two different Hygroscopicity Tandem
                      Differential Mobility Analyzers (HTDMA, VHTDMA). Two Cloud
                      Condensation Nucleus Counter (CCNC) were applied to measure
                      the activation of the particles. For the untreated soot
                      particles neither hygroscopic growth nor activation was
                      observed at a supersaturation of $1\%,$ with exception of a
                      partial activation of GFG-soot generated with argon as
                      carrier gas. Coatings of succinic acid lead to a detectable
                      hygroscopic growth of GFG-soot and enhanced the activated
                      fraction of GFG- (carrier gas: argon) and CAST-soot, whereas
                      no hygroscopic growth of the coated CAST-soot was found.
                      Sulfuric acid coatings led to an OC-content dependent
                      hygroscopic growth of CAST-soot. Such a dependence was not
                      observed for activation measurements. Coating with sulfuric
                      acid decreased the amount of Polycyclic Aromatic
                      Hydrocarbons (PAH), which were detected by AMS-measurements
                      in the CAST-soot, and increased the amount of substances
                      with lower molecular weight than the initial PAHs. We assume
                      that these reaction products increased the hygroscopicity of
                      the coated particles in addition to the coating substance
                      itself.},
      keywords     = {J (WoSType)},
      cin          = {IEK-8},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-8-20101013},
      pnm          = {Atmosphäre und Klima},
      pid          = {G:(DE-Juel1)FUEK491},
      shelfmark    = {Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000304672000011},
      doi          = {10.5194/acp-12-4525-2012},
      url          = {https://juser.fz-juelich.de/record/22986},
}