Dust Emission by Active Moons

Hillier, Jon K.; Schmidt, Jürgen; Hsu, Hsiang-Wen; Postberg, F.

doi:10.1007/s11214-018-0539-9

Cited by 5 publications

(4 citation statements)

References 275 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nanodust from Io's volcanoes or dust originating from the depths of Enceladus' oceans can escape the systems of Jupiter [742] and Saturn [743], [744]. Their compositions can be measured by in situ time-of-flight mass spectrometry [745].…”

Section: A Interplanetary Dust Cloudmentioning

confidence: 99%

Space Plasma Physics: A Review

Hajra

Zank

Sterken³

et al. 2023

IEEE Trans. Plasma Sci.

View full text Add to dashboard Cite

Section: A Interplanetary Dust Cloudmentioning

confidence: 99%

Space Plasma Physics: A Review

Hajra

Zank

Sterken³

et al. 2023

IEEE Trans. Plasma Sci.

View full text Add to dashboard Cite

“…Cosmic dust in the form of nanometer- to micrometer-sized ice grains originates from comets, plumes from icy satellites of the giant planets, − or ejecta from hypervelocity impacts of micrometeoroids on the icy surfaces of atmosphereless bodies. − The plume of Enceladus ejects material from the subsurface ocean so that it may be sampled and analyzed from spacecraft on a fly-by or in orbit around the moon . The Cosmic Dust Analyzer (CDA) instrument on the Cassini spacecraft sampled Enceladus plume grains during flythroughs at 7–17 km/s relative velocity and returned fascinating findings about the grains’ molecular composition, , including the presence of large organic macromolecules with masses of over 200 amu .…”

Section: Introductionmentioning

confidence: 99%

Charged Ice Particle Beams with Selected Narrow Mass and Kinetic Energy Distributions

Spesyvyi

Žabka

Polášek

et al. 2023

J. Am. Soc. Mass Spectrom.

View full text Add to dashboard Cite

Small ice particles play an important role in atmospheric and extraterrestrial chemistry. Circumplanetary ice particles that are encountered by space probes at hypervelocities play a critical role in the determination of surface and subsurface properties of their source bodies. Here we present an apparatus for the generation of low-intensity beams of single mass-selected charged ice particles under vacuum. They are produced via electrospray ionization of water at atmospheric pressure and undergo evaporative cooling when transferred to vacuum through an atmospheric vacuum interface. m/z selection is achieved through two subsequent quadrupole mass filters operated in the variable-frequency mode within a range of m/z values between 8 × 104 and 3 × 107. Velocity and charge of the selected particles are measured using a nondestructive single-pass image charge detector. From the known electrostatic acceleration potentials and settings of the quadrupoles the particle masses could be obtained and be accurately controlled. It has been shown that the droplets are frozen within the transit time of the apparatus such that ice particles are present after the quadrupole stages and finally detected. The demonstrated correspondence between particle mass and specific quadrupole potentials in this device allows preparation of beams of single particles with a repetition rate between 0.1 and 1 Hz with various diameter distributions from 50 to 1000 nm at 30–250 eV of kinetic energy per charge. This corresponds to velocities and particle masses quickly available between 600 m/s (80 nm) and 50 m/s (900 nm) and particle charge numbers (positive) between 103 and 104[e], depending upon size.

show abstract

“…13). conclude that a salt-water reservoir is the source of a compositionally stratified plume on Enceladus (see also Hsu et al, 2015, Hillier et al, 2019. CDA also identified particles above the main rings (Hsu et al, 2018), dust from the Kuiper belt and interstellar dust grains (Altobelli et al 2016).…”

Section: Composition Measurements By Dust Analyzersmentioning

confidence: 99%

“…Among the significant discoveries by the Galileo and Ulysses dust instruments were: the detection of streams of nanometer sized dust particles from the volcanoes of Jupiter's moon Io , Horanyi et al, 1993, Zook et al, 1996, Graps et al, 2000, Krüger et al, 2006, Hillier et al, 2019, impactgenerated dust clouds surrounding the Galilean moons and the formation of a tenuous dust ring (Krüger et al, 2003, Krivov et al, 2002, and dust in and beyond Jupiter's gossamer rings (Krüger et al, 2009). By a Jupiter flyby, the Ulysses spacecraft was brought on to an orbit almost perpendicular to the ecliptic plane (Fig.…”

Section: Dust Detections By In Situ Detectors Throughout the Planetar...mentioning

confidence: 99%

The Dawn of Dust Astronomy

2019

View full text Add to dashboard Cite

We review the development of dust science from the first ground-based astronomical observations of dust in space to compositional analysis of individual dust particles and their source objects. A multitude of observational techniques is available for the scientific study of space dust: from meteors and interplanetary dust particles collected in the upper atmosphere to dust analyzed in situ or returned to Earth. In situ dust detectors have been developed from simple dust impact detectors determining the dust hazard in Earth orbit to dust telescopes capable of providing compositional analysis and accurate trajectory determination of individual dust particles in space. The concept of Dust Astronomy has been developed, recognizing that dust particles, like photons, carry information from remote sites in space and time. From knowledge of the dust particles' birthplace and their bulk properties, we learn about the remote environment out of which the particles were formed. Dust Observatory missions like Cassini, Stardust, and Rosetta study Saturn's satellites and rings and the dust environments of comet Wild 2 and comet Churyumov-Gerasimenko, respectively. Supplemented by simulations of dusty processes in the laboratory we are beginning to understand the dusty environments in space.

show abstract

Dust Emission by Active Moons

Cited by 5 publications

References 275 publications

Space Plasma Physics: A Review

Space Plasma Physics: A Review

Charged Ice Particle Beams with Selected Narrow Mass and Kinetic Energy Distributions

The Dawn of Dust Astronomy

Contact Info

Product

Resources

About