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Interstellar dust grains play a crucial role in the evolution of the galactic interstellar medium (ISM). Despite its importance, however, dust remains poorly understood in terms of its origin, composition, and abundance throughout the…

星系天体物理 · 物理学 2010-05-11 Brian J. Williams

We present redshift-zero synthetic observational data considering dust attenuation and dust emission for the thirty galaxies of the Auriga project, calculated with the SKIRT radiative transfer code. The post-processing procedure includes…

Observations have demonstrated the presence of substantial amounts of interstellar dust in elliptical galaxies, most of which is believed to be distributed diffusely over the galaxy. Absorption by dust grains has a major impact on the…

天体物理学 · 物理学 2009-10-31 Maarten Baes , Herwig Dejonghe , Sven De Rijcke

Entrainment of dust particles in the flow inside and outside of the proto-planetary disk has implications for the disk evolution and composition of planets. Using quasi-stationary solutions in our star-disk simulations as a background, we…

太阳与恒星天体物理 · 物理学 2020-06-02 Robert Jaros , Miljenko Čemeljić , Włodek Kluźniak , Dejan Vinković , Cezary Turski

The open source SKIRT Monte Carlo radiative transfer code has been used for more than 15 years to model the interaction between radiation and dust in various astrophysical systems. In this work, we present version 9 of the code, which has…

星系天体物理 · 物理学 2020-03-03 Peter Camps , Maarten Baes

With Planck and Herschel, we now have the spectral coverage and angular resolution required to observe dense and cold molecular clouds. As these clouds are optically thick at short wavelength but optically thin at long wavelength, it is…

Giant impacts between planetary embryos are a natural step in the terrestrial planet formation process and are expected to create disks of warm debris in the terrestrial regions of their stars. Understanding the gas and dust debris produced…

ALMA has revolutionized our view of protoplanetary disks, revealing structures such as gaps, rings and asymmetries that indicate dust trapping as an important mechanism in the planet formation process. However, the high resolution images…

地球与行星天体物理 · 物理学 2018-10-19 Nienke van der Marel , Brenda Matthews , Ruobing Dong , Tilman Birnstiel , Andrea Isella

The light scattered from dust grains in debris disks is typically modeled as compact spheres using Lorenz-Mie theory or as porous spheres by incorporating an effective medium theory. In this work we examine the effect of incorporating a…

地球与行星天体物理 · 物理学 2019-04-17 Jessica A. Arnold , Alycia J. Weinberger , Gorden Videen , Evgenij S. Zubko

Debris disks are the natural by-products of the planet formation process. Scattered or polarized light observations are mostly sensitive to small dust grains that are released from the grinding down of bigger planetesimals. High angular…

[Abridged] Aims: We provide predictions for ALMA observations of planet gaps that account for the specific spatial distribution of dust that results from consistent gas+dust dynamics. Methods: In a previous work, we ran full 3D, two-fluid…

地球与行星天体物理 · 物理学 2012-08-28 J. -F. Gonzalez , C. Pinte , S. T. Maddison , F. Ménard , L. Fouchet

We present full volume cosmological simulations using the moving-mesh code AREPO to study the coevolution of dust and galaxies. We extend the dust model in AREPO to include thermal sputtering of grains and investigate the evolution of the…

星系天体物理 · 物理学 2017-05-25 Ryan McKinnon , Paul Torrey , Mark Vogelsberger , Christopher C. Hayward , Federico Marinacci

One of the major challenges we face is how to quickly and accurately create the three-dimensional (3D) density distributions of interstellar dust in the Milky Way using extinction and distance measurements of large samples of stars. In this…

星系天体物理 · 物理学 2024-02-20 Bingqiu Chen , Fei Qin , Guangxing Li

Aims. Monte Carlo Radiative Transfer (MCRT) simulations are a powerful tool for understanding the role of dust in astrophysical systems and its influence on observations. However, due to the strong coupling of the radiation field and medium…

天体物理仪器与方法 · 物理学 2023-02-01 Majda Smole , João Rino-Silvestre , Santiago González-Gaitán , Marko Stalevski

Interstellar dust links the formation of the first stars to the rocky planet we inhabit by playing a pivotal role in the cooling and fragmentation of molecular clouds, and catalyzing the formation of water and organic molecules. Despite its…

星系天体物理 · 物理学 2024-10-21 Danial Langeroodi , Jens Hjorth , Andrea Ferrara , Christa Gall

Understanding the interaction of dense, cold ejecta clumps with a fast reverse shock, an instance of the "cloud-crushing" problem, is essential to assess whether core-collapse supernovae act as net dust factories or net dust destroyers.…

星系天体物理 · 物理学 2025-10-08 Sergio Martínez-González

Dust grains have been detected in various astronomical objects. Interpretation of observations of dusty objects includes three components: 1) determination of the materials which can exist in the solid phase and the measurements or…

天体物理学 · 物理学 2007-05-23 N. V. Voshchinnikov

A systematic analysis of methods for computing the trajectories of solid-phase particles applied in modern astrophysics codes designed for modeling gas-dust circumstellar disks has been carried out for the first time. The motion of grains…

地球与行星天体物理 · 物理学 2018-09-06 Olga P. Stoyanovskaya , Valeriy N. Snytnikov , Eduard I. Vorobyov