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相关论文: Dust Distribution during Reionization

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We propose a novel method of determination of the dust particle spatial distribution in dust clouds that form in three-dimensional (3D) complex plasmas under microgravity conditions. The method utilizes the data obtained during the 3D…

(abridged) The dust content of the universe is primarily explored via its interaction with stellar photons, producing interstellar extinction. However, owing to the physical extension of the observing beam, observations may detect scattered…

太阳与恒星天体物理 · 物理学 2015-12-02 P. Scicluna , R. Siebenmorgen

We present predictions for the extent of the dust-continuum emission of thousands of main-sequence galaxies drawn from the TNG50 simulation between $z=1-5$. To this aim, we couple the radiative transfer code SKIRT to the output of the TNG50…

Nanometer- and micrometer-sized solid particles play an important role in the evolutionary cycle of stars and interstellar matter. The optical properties of cosmic grains determine the interaction of the radiation field with the solids,…

天体物理仪器与方法 · 物理学 2015-05-18 Thomas Henning , Harald Mutschke

Recent results have shown that a substantial fraction of high-redshift Lyman alpha galaxies contain considerable amounts of dust. This implies that Lyman alpha galaxies are not primordial, as has been thought in the past. However, this dust…

天体物理学 · 物理学 2009-11-13 Steven Finkelstein , Sangeeta Malhotra , James Rhoads , Nimish Hathi , Norbert Pirzkal

An analytical function for the spectrum of spinning dust emission is presented. It is derived through the application of careful approximations, with each step tested against numerical calculations. This approach ensures accuracy while…

星系天体物理 · 物理学 2015-06-18 Matthew Stevenson

Understanding the properties of the galactic emission at millimetre wavelengths is important for studies of the cosmic microwave background (CMB). In this work we explore the bispectrum, the harmonic equivalent of the three point function,…

宇宙学与河外天体物理 · 物理学 2019-11-06 William R. Coulton , David N. Spergel

We quantify the contamination from polarized diffuse Galactic synchrotron and thermal dust emissions to the B-modes of the CMB anisotropies on the degree angular scale, using data from the Planck and WMAP satellites. We compute power…

宇宙学与河外天体物理 · 物理学 2016-03-23 N. Krachmalnicoff , C. Baccigalupi , J. Aumont , M. Bersanelli , A. Mennella

Context. The polarized thermal emission from interstellar dust offers a valuable tool for probing both the dust and the magnetic field in the interstellar medium (ISM). However, existing observations only yield the total amount of dust…

星系天体物理 · 物理学 2026-01-14 Katia Ferrière , Ludovic Montier , Jean-Sébastien Carrière

This paper reviews our current understanding of interstellar dust models, what constitutes a viable dust model, what observational constraints are essential for deriving such model, and the current viable dust models. Interstellar dust…

天体物理学 · 物理学 2009-11-10 Eli Dwek

Laboratory experiments show that dusty bodies in a gaseous environment eject dust particles if they are illuminated. We find that even more intense dust eruptions occur when the light source is turned off. We attribute this to a compression…

地球与行星天体物理 · 物理学 2011-02-23 Thorben Kelling , Gerhard Wurm , Miroslav Kocifaj , Jozef Klacka , Dennis Reiss

Template-fit approach is often used to separate the Galactic dust emission and the cosmic infrared background (CIB) anisotropies at low $\text{HI}$ column density regions with an underlying assumption that the gas and dust are tightly…

星系天体物理 · 物理学 2026-03-09 Srijita Sinha , Tuhin Ghosh , Erwan Allys , François Boulanger , Jean-Marc Delouis

Dust is essential to the evolution of galaxies and drives the formation of planetary systems. The challenge of inferring the origin of different presolar dust grains from meteoritic samples motivates forward modelling to understand the…

星系天体物理 · 物理学 2025-10-01 Kira Lund , Anders Johansen , Oscar Agertz

Interstellar dust plays a crucial role in the evolution of the Universe by assisting the formation of molecules, by triggering the formation of the first low-mass stars, and by absorbing stellar ultraviolet-optical light and subsequently…

天体物理学 · 物理学 2009-11-10 R. Maiolino , R. Schneider , E. Oliva , S. Bianchi , A. Ferrara , F. Mannucci , M. Pedani , M. Roca Sogorb

Dust-obscured star formation has dominated the cosmic history of star formation since z = 4. However, the recent finding of significant amount of dust in galaxies out to z = 8 has opened the new frontier of investigating the origin of dust…

星系天体物理 · 物理学 2024-02-01 Raffaella Schneider , Roberto Maiolino

A significant fraction of binary neutron star mergers occur in star-forming galaxies where the UV-optical and soft X-ray afterglow emission from the relativistic jet may be absorbed by dust and re-emitted at longer wavelengths. We show…

高能天体物理现象 · 物理学 2021-08-25 Wenbin Lu , Christopher F. McKee , Kunal P. Mooley

We aim to constrain the dust mass and grain sizes in the interaction regions between the stellar winds and the ISM around asymptotic giant branch stars. By describing the dust in these regions, we aim to shed light on the role of low mass…

星系天体物理 · 物理学 2022-09-21 M. Maercker , T. Khouri , M. Mecina , E. De Beck

The dust in the interstellar medium, that provides the material for forming stars - and circumstellar discs as a natural by-product - is known to have submicron sizes. As these discs are the sites of planet formation, those small grains are…

太阳与恒星天体物理 · 物理学 2009-03-04 Gwendolyn Meeus

The interplay between dust and molecules is of fundamental importance in early galaxy evolution. First we present the prediction for the dust emission from forming galaxies. Then we discuss the observational strategy for molecules in early…

天体物理学 · 物理学 2007-05-23 Tsutomu T. Takeuchi
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