Results 41 to 50 of about 281,420 (175)

Studying the spatial distribution of interstellar dust [PDF]

, 1989
The spacial distribution of interstellar dust reflects both interstellar dynamics and the processes which form and destroy dust in the interstellar medium (ISM).
Werner, Michael W., Allen, C., Murthy, Jayant, Walker, Helen J., Kimble, R., Henry, R. C., Wofford, J.   +6 more
core  

Recent progress in theory and observational study of dust grain alignment and rotational disruption in star-forming regions

Frontiers in Astronomy and Space Sciences, 2022
Modern understanding of dust astrophysics reveals that radiative torques (RATs) arising from the radiation–dust interaction can induce two fundamental effects: grain alignment and rotational disruption.
Le Ngoc Tram, Thiem Hoang, Thiem Hoang
doaj   +1 more source

Laboratory Experiments Identify Meteoritic Organic Precursors for Chlorinated Compounds Detected by the Sample Analysis at Mars (SAM) Instrument at Gale Crater

Journal of Geophysical Research: Planets, Volume 131, Issue 11, November 2026.
Abstract The Viking missions landed two spacecraft on Mars each equipped with a pyrolysis‐gas chromatograph‐mass spectrometer system capable of detecting signs of life. Although working as intended, detections of chloromethane and dichloromethane were initially attributed to terrestrial contamination.
A. Mojarro, J. Herrera, A. Sistiaga, S. S. O’Reilly, J. C. Aponte, A. Buch, J. L. Eigenbrode, D. P. Glavin, C. Freissinet, M. Millan, C. Szopa, R. E. Summons   +11 more
wiley   +1 more source

Interstellar Dust: Contributed Papers [PDF]

, 1989
A coherent picture of the dust composition and its physical characteristics in the various phases of the interstellar medium was the central theme.
Tielens, Alexander G. G. M., Allamandola, Louis J.   +1 more
core  

JWST/MIRI Finds ISM-like Amorphous Silicates in Interstellar Comet 3I/ATLAS

The Astrophysical Journal Letters
We present the first spectroscopic mineralogical analysis of the dust coma of an interstellar object (ISO) from JWST mid-infrared spectroscopy of 3I/ATLAS (3I).
Matthew Belyakov, Ian Wong, Carey M. Lisse, M. Ryleigh Davis, Bryce T. Bolin, Audrey Martin, Klaus M. Pontoppidan, Geoffrey A. Blake, Christine Chen, Michael E. Brown   +9 more
doaj   +1 more source

Four Interstellar Dust Candidates from the Stardust Interstellar Dust Collector [PDF]

, 2011
In January 2006, the Stardust sample return capsule returned to Earth bearing the first solid samples from a primitive solar system body, Comet 81P/Wild2, and a collector dedicated to the capture and return of contemporary interstellar dust.
Fougeray, P., Brownlee, D. E., Huss, G. R., Floss, C., Burchell, M., Heck, P. R., Butterworth, A. L., Borg, J., Allen, C., Jillier, J. K., Bridges, J., Bechtel, H. A., Brenker, F., Grun, E., Howard, L., Gainsforth, Z., Westphal, A. J., Hudson, B., Cloetens, P., Burghammer, M., Hoppe, P., Flynn, G. J., Frank, D., Bajt, S., Davis, A. M.   +24 more
core  

Mapping Dust Attenuation and the 2175 Å Bump at Kiloparsec Scales in Nearby Galaxies

The Astrophysical Journal, 2023
We develop a novel approach to measure the dust attenuation properties of galaxies, including the dust opacity, the shape of the attenuation curve, and the strength of the 2175 Å absorption feature.
Shuang Zhou, Cheng Li, Niu Li, Houjun Mo, Renbin Yan, Michael Eracleous, Mallory Molina, Caryl Gronwall, Nikhil Ajgaonkar, Zhuo Cheng, Ruonan Guo   +10 more
doaj   +1 more source

Optical Radiation Pressure: Resonant Mechanical Excitation of Thin Films

Annalen der Physik, Volume 538, Issue 10, October 2026.
The modulation of a laser beam generates a modulated radiation pressure force acting on a thin film. A resonant response is observed, leading to a net average thinning of the film. ABSTRACT Optical radiation pressure was directly observed for the first time more than a century ago.
Janine Emile, Olivier Emile
wiley   +1 more source

Influence of Dynamical Friction on the Unstable Manifolds of Lagrange Points in Barred Galaxies

Astronomische Nachrichten, Volume 347, Issue 8, October 2026.
ABSTRACT Some time ago the idea has been proposed that rings and spirals in barred galaxies are shaped by the unstable manifolds of the Lagrange points sitting near the ends of the bar. The topic of the present article is an investigation of whether the numerical support for this suggestion can be improved by the inclusion of dynamical friction into ...
Christof Jung
wiley   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, Volume 43, Issue 7, Page 4475-4514, October 2026.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source