English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Electrical properties of cometary dust particles derived from line shapes of TOF-SIMS spectra measured by the ROSETTA/COSIMA instrument

Hornung, K., Mellado, E. M., Paquette, J., Fray, N., Fischer, H., Stenzel, O. J., et al. (2020). Electrical properties of cometary dust particles derived from line shapes of TOF-SIMS spectra measured by the ROSETTA/COSIMA instrument. Planetary and Space Science, 182: 104758. doi:10.1016/j.pss.2019.104758.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0005-DB27-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-DB28-8
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Hornung, Klaus, Author
Mellado, Eva Maria, Author
Paquette, John1, Author              
Fray, Nicolas, Author
Fischer, Henning1, Author              
Stenzel, Oliver Joachim1, Author              
Baklouti, Donia, Author
Merouane, Sihane1, Author              
Langevin, Yves, Author
Bardyn, Anais, Author
Engrand, Cecile, Author
Cottin, Hervé, Author
Thirkell, Laurent, Author
Briois, Christelle, Author
Modica, Paola, Author
Rynö, Jouni, Author
Silen, Johan, Author
Schulz, Rita, Author
Siljeström, Sandra, Author
Lehto, Harry, Author
Varmuza, Kurt, AuthorKoch, Andreas, AuthorKissel, Jochen1, Author              Hilchenbach, Martin1, Author               more..
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

Content

show
hide
Free keywords: -
 MPIS_PROJECTS: ROSETTA: COSIMA
 Abstract: Between Aug. 2014 and Sept. 2016, while ESA's cornerstone mission Rosetta was operating in the vicinity of the nucleus and in the coma of comet 67P/Churyumov-Gerasimenko, the COSIMA instrument collected a large number of dust particles with diameters up to a millimeter. Positive or negative ions were detected by a time-of-flight secondary ion mass spectrometer (TOF-SIMS) and the composition of selected particles was deduced. Many of the negative ion mass spectra show, besides mass peaks at the correct position, an additional, extended contribution at the lower mass side caused by partial charging of the dust. This effect, usually avoided in SIMS applications, can in our case be used to obtain information on the electrical properties of the collected cometary dust particles, such as the specific resistivity (ρr>1.2⋅1010Ωm) and the real part of the relative electrical permittivity (εr<1.2). From these values a lower limit for the porosity is derived (P>0.8).

Details

show
hide
Language(s): eng - English
 Dates: 2020
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.pss.2019.104758
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Planetary and Space Science
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Amsterdam : Elsevier B.V.
Pages: - Volume / Issue: 182 Sequence Number: 104758 Start / End Page: - Identifier: ISSN: 0032-0633
CoNE: https://pure.mpg.de/cone/journals/resource/954925434422