Small is beautiful: The analysis of nanogram‐sized astromaterials

Zolensky, M. E.; Pieters, C. M.; Clark, B. C.; Papike, J. J.

doi:10.1111/j.1945-5100.2000.tb01970.x

Cited by 51 publications

(29 citation statements)

References 120 publications

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“…This point is discussed in general for small particles retrieved from space in a recent paper by Zolensky et al (2000). There the point is made that a whole range of analytical techniques widely available in laboratories should be applied.…”

Section: Introductionmentioning

confidence: 99%

Capture of particles in hypervelocity impacts in aerogel

Burchell

Creighton

Cole

et al. 2001

Meteorit & Planetary Scien

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— The capture in aerogel of 106 μm diameter glass beads is investigated for impact speeds of 1 to 7.5 km s−1. Three different aerogel densities were used, 60,96 and 180 kg m−3. It was found that the length of the penetration track in the aerogel increases with speed until a maximum is reached. Above the maximum speed the track length decreases. This behaviour is similar to that which has previously been observed for particles impacting polystyrene foams and porous alumina. Whilst track length was not found to be an unambiguous indicator of impact speed, the excavated track volume was found to be a suitable indictor of speed. Further, it was possible to estimate the original particle size by measurements of the track volume and entrance hole size. In addition sub‐100 μm diameter particles composed of various minerals were fired into aerogel and the characterisation of the particles in situ by use of a Raman spectrometer was evaluated. This was found to work well, giving vibrational spectra essentially similar to those of the bulk minerals, thus providing a mineralogical rather than an elemental signature for the captured particles.

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Section: Introductionmentioning

confidence: 99%

Capture of particles in hypervelocity impacts in aerogel

Burchell

Creighton

Cole

et al. 2001

Meteorit & Planetary Scien

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“…Nanometric sub-units are also observed and interplanetary dust particles frequently contain, for instance, FeNi particles of 5 -10 nm size [22]. At these small scales, analysis is difficult since full laboratory analysis requires samples of mass ≥ 10 −12 kg (sizes several µm) [29].…”

Section: Dust Origin Evolution and Observationsmentioning

confidence: 99%

Dust in the interplanetary medium

Mann

Czechowski

Meyer‐Vernet

et al. 2010

Plasma Phys. Control. Fusion

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Abstract. The mass density of dust particles that form from asteroids and comets in the interplanetary medium of the solar system is, near 1AU, comparable to the mass density of the solar wind. It is mainly contained in particles of micrometer size and larger. Dust and larger objects are destroyed by collisions and sublimation and hence feed heavy ions into the solar wind and the solar corona. Small dust particles are present in large number and as a result of their large charge to mass ratio deflected by electromagnetic forces in the solar wind. For nano dust particles of sizes ≃ 1 − 10 nm, recent calculations show trapping near the Sun and outside from about 0.15 AU ejection with velocities close to solar wind velocity. The fluxes of ejected nano dust are detected near 1AU with the plasma wave instrument onboard the STEREO spacecraft. Though such electric signals have been observed during dust impacts before, the interpretation depends on several different parameters and data analysis is still in progress.PACS numbers: 96.30.Vb, 96.50.Ci, 96.50.Dj, 96.50.Ya

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“…Laser-based techniques which consume some of the material can also be used. Even ng samples can yield substantial scientific information (Zolensky et al, 2000), as demonstrated by the Stardust mission (c.f. Brownlee et al, 2006;Burchell et al, 2009a).…”

Section: Scientific Strategymentioning

confidence: 99%

The proposed Caroline ESA M3 mission to a Main Belt Comet

Jones

Agarwal

Bowles

et al. 2018

Advances in Space Research

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We describe Caroline, a mission proposal submitted to the European Space Agency in 2010 in response to the Cosmic Visions M3 call for medium-sized missions. Caroline would have travelled to a Main Belt Comet (MBC), characterizing the object during a flyby, and capturing dust from its tenuous coma for return to Earth. MBCs are suspected to be transition objects straddling the traditional boundary between volatile-poor rocky asteroids and volatile-rich comets. The weak cometary activity exhibited by these objects indicates the presence of water ice, and may represent the primary type of object that delivered water to the early Earth. The Caroline mission would have employed aerogel as a medium for the capture of dust grains, as successfully used by the NASA Stardust mission to Comet 81P/ Wild 2. We describe the proposed mission design, primary elements of the spacecraft, and provide an overview of the science instruments and their measurement goals. Caroline was ultimately not selected by the European Space Agency during the M3 call; we briefly reflect on the pros and cons of the mission as proposed, and how current and future mission MBC mission proposals such as Castalia could best be approached.

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Small is beautiful: The analysis of nanogram‐sized astromaterials

Cited by 51 publications

References 120 publications

Capture of particles in hypervelocity impacts in aerogel

Capture of particles in hypervelocity impacts in aerogel

Dust in the interplanetary medium

The proposed Caroline ESA M3 mission to a Main Belt Comet

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