Europlanet Science Congress 2021
Virtual meeting
13 – 24 September 2021
Europlanet Science Congress 2021
Virtual meeting
13 September – 24 September 2021
EPSC Abstracts
Vol. 15, EPSC2021-659, 2021
Europlanet Science Congress 2021
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Dust Telescopes for Dust Astronomy

Ralf Srama1,2, Zoltan Sternovsky3, Sascha Kempf3, Mihaly Horanyi3, Frank Postberg4, Harald Krüger5, Masanori Kobayashi6, and Veerle Sterken7
Ralf Srama et al.
  • 1IRS, University of Stuttgart, Ger
  • 2Baylor University, Waco, TX, USA
  • 3LASP, University of Colorado, Boulder, USA
  • 4Freie University of Berlin, Ger
  • 5MPS, Göttingen, Ger
  • 6CIT, Tokyo, JPN
  • 7ETH, Zürich, CH

Dust Astronomy investigates the nature and the origin of dust particles in space. The particle size distribution ranges from nanodust to approximately 100 micrometer. The study of the elemental and/or chemical composition of the particles together with the knowledge about their origin provides insights into many disciplines. Dust Astronomy is an interdisciplinary working field, which includes Solar System Science, Interstellar Medium studies and Astrobiology. A basic tool for these studies are Dust Telescopes.

Dust Telescopes are in-situ instruments to characterize individual dust particles by their velocity vector, size and composition. They are based on impact ionization used for time-of-flight compositional analysis and on charge induction for particle speed and size measurements. 

In this sense, already the Cassini Cosmic Dust Analyzer (CDA) was a simple Dust Telescope, which successfully characterized the dust environment at Saturn. Now, future missions go even further. In the next years the missions DESTINY+, EUROPA and IMAP will launch. In this talk, a summary is given about the capabilities of Dust Telescopes with a focus on the DESTINY+ Dust Analyser (DDA). DDA is a medium size instrument with a target diameter of 26 cm. A two-axis articulation allows to track dust RAM directions. Larger Telescopes like the record breaking LAMA instrument, developed especially for the measurement of low interstellar dust fluxes, and the instruments for the probes IMAP and EUROPA are compared with DDA.

The paper will address questions about the detection of nanodust or, what is a good instrument approach for a Dust Observatory? What are the instrumental challenges for an Interstellar Probe?

How to cite: Srama, R., Sternovsky, Z., Kempf, S., Horanyi, M., Postberg, F., Krüger, H., Kobayashi, M., and Sterken, V.: Dust Telescopes for Dust Astronomy, Europlanet Science Congress 2021, online, 13–24 Sep 2021, EPSC2021-659,, 2021.