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相关论文: Production, Processing and Consumption of the Dust…

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It has often been suggested that an alternative to the standard CO/21-cm method for estimating the mass of the interstellar medium (ISM) in a galaxy might be to estimate the mass of the ISM from the continuum dust emission. In this paper,…

Here we investigate the origin of the dust mass (Mdust) observed in the Milky Way (MW) and of dust scaling relations found in a sample of local galaxies from the DGS and KINGFISH surveys. To this aim, we model dust production from…

We combine new Spitzer Space Telescope observations in the mid- and far-infrared with SCUBA 850 micron observations to improve the measurement of dust temperatures, masses and luminosities for 11 galaxies of the SCUBA Local Universe Galaxy…

宇宙学与河外天体物理 · 物理学 2015-05-13 C. N. A. Willmer , G. H. Rieke , Emeric Le Floc'h , J. L. Hinz , C. W. Engelbracht , Delphine Marcillac , K. D. Gordon

We study the emission by dust and stars in the Large and Small Magellanic Clouds, a pair of low-metallicity nearby galaxies, as traced by their spatially resolved spectral energy distributions (SEDs). This project combines Herschel Space…

Galaxies reside in extended dark matter halos, but their baryonic content, especially dust, remains less well understood. We aim to investigate the amount and distribution of dust in galactic halos by measuring shifts in the observed…

星系天体物理 · 物理学 2025-08-22 Eray Genc , Angus H. Wright , Hendrik Hildebrandt

We combine high-resolution ALMA and HST/CANDELS observations of 20 submillimeter galaxies (SMGs) predominantly from the AS2UDS survey at z~2 with bright rest-frame optical counterparts (Ks < 22.9) to investigate the resolved structural…

Condensation in the outer regions of decaying supernovae is an efficient source of dust with grain size up to 1 micron. The largest grains leave the parent galaxy, thus forming "grey" intergalactic dust, which can explain the observed…

天体物理学 · 物理学 2007-05-23 Ernst Fischer

We develop a dust efflux model of radiation pressure acting on dust grains which successfully reproduces the relation between stellar mass, dust opacity and star formation rate observed in local star-forming galaxies. The dust content of…

宇宙学与河外天体物理 · 物理学 2015-06-16 H. Jabran Zahid , Paul Torrey , Rolf Kudritzki , Lisa Kewley , Romeel Dave , Margaret Geller

This article is based on an invited talk given by V. P. Kulkarni at the 8th Cosmic Dust meeting. Dust has a profound effect on the physics and chemistry of the interstellar gas in galaxies and on the appearance of galaxies. Understanding…

星系天体物理 · 物理学 2016-12-07 Varsha P. Kulkarni , Monique C. Aller , Donald G. York , Daniel E. Welty , Giovanni Vladilo , Debopam Som

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. We…

太阳与恒星天体物理 · 物理学 2022-12-14 Shunta Koga , Masahiro N. Machida

Dust grains in protoplanetary disks are the building blocks of planets. Investigating the dust composition and size, and their variation over time, is crucial for understanding the planet formation process. The PDS 70 disk is so far the…

地球与行星天体物理 · 物理学 2025-01-13 Yao Liu , Dafa Li , Hongchi Wang , Haoran Feng , Min Fang , Fujun Du , Thomas Henning , Giulia Perotti

Although dust is widely found in astrophysics, forming dust is surprisingly difficult. The proper combination of low temperature (<2000 K) and high density is mainly found in the winds of late-type giant and supergiant stars which, as a…

天体物理学 · 物理学 2009-12-08 Martin Elvis , Massimo Marengo , Margarita Karovska

Cold molecular clouds are the birthplaces of stars and planets, where dense cores of gas collapse to form protostars. The dust mixed in these clouds is thought to be made of grains of an average size of 0.1 micrometer. We report the…

星系天体物理 · 物理学 2011-10-20 Laurent Pagani , Jürgen Steinacker , Aurore Bacmann , Amelia Stutz , Thomas Henning

We examine the dust distribution around a sample of 70,000 low redshift galaxy groups and clusters derived from the Sloan Digital Sky Survey. By correlating spectroscopically identified background quasars with the galaxy groups we obtain…

宇宙学与河外天体物理 · 物理学 2015-05-18 Sean L. McGee , Michael L. Balogh

To study the dust evolution in the cosmological structure formation history, we perform a smoothed particle hydrodynamic simulation with a dust enrichment model in a cosmological volume. We adopt the dust evolution model that represents the…

星系天体物理 · 物理学 2019-02-13 Kuan-Chou Hou , Shohei Aoyama , Hiroyuki Hirashita , Kentaro Nagamine , Ikkoh Shimizu

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

In order to interpret observations influenced by dust and to perform detailed modeling of the observable characteristics of dust-producing or dust-containing objects, knowledge of the micro-physical properties of relevant dust species are…

星系天体物理 · 物理学 2012-01-20 Anja C. Andersen

We use the Herschel-ATLAS survey to conduct the first large-scale statistical study of the submm properties of optically selected galaxies. Using ~80,000 r-band selected galaxies from 126 deg^2 of the GAMA survey, we stack into submm…

Recent observations with the James Webb Space Telescope are yielding tantalizing hints of an early population of massive, bright galaxies at $z > 10$, with Atacama Large Millimeter Array (ALMA) observations indicating significant dust…

星系天体物理 · 物理学 2023-09-19 Valentin Mauerhofer , Pratika Dayal

We investigate the connection between dust and gas in the nearby edge-on spiral galaxy NGC 891. High resolution Herschel PACS and SPIRE 70, 100, 160, 250, 350, and 500 $\mu$m images are combined with JCMT SCUBA 850 $\mu$m observations to…