Results 51 to 60 of about 4,364 (222)
Satellites and Small Bodies With ALMA: Insights Into Solar System Formation and Evolution
AGU Advances, Volume 6, Issue 6, December 2025.Abstract Our understanding of the formation and evolution of planetary systems has made major advances in the past decade. This progress has been driven in large part by the Atacama Large Millimeter/submillimeter Array (ALMA), which has given us an unprecedented view of solar system bodies themselves, and of the structure and chemistry of forming ...
Katherine de Kleer +3 more
wiley +1 more source
Observational constraints on circumstellar dust [PDF]
, 1986 There is an enormous range in the properties of stars that are losing mass. The red giants responsible for injecting roughly half or more of the material into the interstellar medium are reviewed. The physical properties are described for the out flowing
Jura, M.
core +1 more source
Mineralogy of Circumstellar and Interstellar Dust: The SPICA Potential [PDF]
, 2009 The mid-infared spectral region contains many resonances of dust species that are of astrophysical interest. These resonances can be used to trace the dust cycle in galaxies, starting from the evolved low- and high mass stars, through the interstellar ...
L. B.F.M. Waters
core +1 more source
Clusters Stagnating During Condensation: Metastable Material or a Separate State of Matter?
Annalen der Physik, Volume 537, Issue 10, October 2025.Condensation stagnation, that is, the existence of a delay between nucleation and growth during the gas‐phase particle formation, is a crucial phenomenon, which manifests itself as the presence of supercritical clusters in resulting particulates. The light emission signature of stagnant clusters is identified in the magnesium particle flame in air, and,
Nicholas R. Jaramillo +4 more
wiley +1 more source
NanoSIMS-Analyse und hochauflösende Elektronenmikroskopie an präsolaren Silikaten aus roten Riesensternen und Supernovaexplosionen [PDF]
, 2009 This thesis deals with the analysis of “presolar” silicates and oxides by high resolution mass spectrometry and electron microscopy techniques. This “stardust” was identified by its extreme oxygen isotopic anomalies, which point to nucleosynthetic ...
Vollmer, Christian
core
Near-infrared Integral-field Spectroscopy of the Wind Forming Region of CW Leo
The Astronomical JournalThe circumstellar envelope of the carbon star CW Leo exhibited various unexpected changes in recent optical imaging observations. We have performed a follow-up observation using the Near-infrared Integral-Field Spectrograph (NIFS) equipped on the Gemini ...
Hyosun Kim +3 more
doaj +1 more source
Mineralogy of circumstellar dust [PDF]
, 2008 The composition and spatial distribution of circumstellar dust in young and old stars can be used as a probe of the physical and chemical processes that take place.
Waters, L. B. F. M., Leinert, Ch
core
Dust motion and possibility of dust growth in a growing circumstellar disk
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT We calculate the evolution of a star-forming cloud core using a three-dimensional resistive magnetohydrodynamics simulation, treating dust grains as Lagrangian particles, to investigate the dust motion in the early star formation stage.
Shunta Koga, Masahiro N Machida
openaire +2 more sources
L1448 IRS3B: Dust Polarization Aligned with Spiral Features, Tracing Gas Flows
The Astrophysical JournalCircumstellar disk dust polarization in the (sub)millimeter is, for the most part, not from dust grain alignment with magnetic fields but rather indicative of a combination of dust self-scattering with a yet unknown alignment mechanism that is consistent
Leslie W. Looney +13 more
doaj +1 more source
Circumstellar dust emission models
The Astrophysical Journal, 1994 We present the wavelength-dependent absorption coefficient K(sub lambda) the scattering coefficient o(sub lambda), the albedo w(sub lambda), and the average cosine of the scattering phase function g(sub lambda) between 0.0912 micrometers and 1000 micrometers for four interstellar medium grain models.
Mark G. Wolfire, Ed Churchwell
openaire +1 more source