Non-destructive search for interstellar dust using synchrotron microprobes

  • A. J. Westphal
  • , A. Allbrink
  • , C. Allen
  • , S. Bajt
  • , R. Bastien
  • , H. Bechtel
  • , P. Bleuet
  • , J. Borg
  • , S. Bowker
  • , F. Brenker
  • , J. Bridges
  • , D. E. Brownlee
  • , M. Burchell
  • , M. Burghammer
  • , A. L. Butterworth
  • , A. Campanile
  • , P. Cloetens
  • , G. Cody
  • , T. Ferroir
  • , K. Ferrari
  • C. Floss, G. J. Flynn, D. Frank, Z. Gainsforth, E. Grün, M. Harmer, P. Hoppe, A. Kearsley, S. Kulkarni, B. Lai, L. Lemelle, H. Leroux, R. Lettieri, W. Marchant, B. McCreadie, L. R. Nittler, R. Ogliore, F. Postberg, C. Rigamonti, S. A. Sandford, S. Schmitz, G. Silversmit, A. Simionovici, G. Sperry, R. Srama, F. Stadermann, T. Stephan, R. M. Stroud, J. Susini, S. Sutton, V. Thompson, R. Toucoulou, M. Trieloff, P. Tsou, A. Tsuchiyama, T. Tyliczszak, B. Vekemans, L. Vincze, J. Warren, T. Yahnke, D. Zevin, M. E. Zolensky

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Here we describe the critical role that synchrotron X-ray and infrared microprobes are playing in the search for interstellar dust in the Stardust Interstellar Dust Collector (SIDC). The samples under examination are submicron particles trapped in low-density aerogel. We have found that the spatial resolution, energy range, and flux capabilities of the FTIR beamlines 1.4.3, ALS, and U2B, NSLS; the XRF microprobes ID13 and ID22NI, ESRF and 2-ID-D, APS; and the STXM beamline 11.0.2, ALS are ideally suited for studying these tiny returned samples. Using nondestructive, coordinated analyses at these microprobes, we have been able to eliminate most candidates as likely samples of interstellar dust. This in itself is a major accomplishment, since the analysis of these tiny samples is technically extremely challenging.

Original languageEnglish
Title of host publicationX-ray Optics and Microanalysis - Proceedings of the 20th International Congress, ICXOM20
PublisherAmerican Institute of Physics Inc.
Pages131-138
Number of pages8
ISBN (Print)9780735407640
DOIs
StatePublished - 2010

Publication series

NameAIP Conference Proceedings
Volume1221
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Keywords

  • Interstellar dust
  • Stardust

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