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相关论文: Galactic dust evolution with rapid dust formation …

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The abundance evolution of interstellar dust species originating from stellar sources and from condensation in molecular clouds in the local interstellar medium of the Milky Way is studied and the input of dust material to the Solar System…

天体物理学 · 物理学 2009-11-13 Svitlana Zhukovska , Hans-Peter Gail , Mario Trieloff

We investigate the time evolution of dust properties, molecular hydrogen (H_2) contents, and star formation histories in galaxies by using our original chemodynamical simulations. The simulations include the formation of dust in the stellar…

宇宙学与河外天体物理 · 物理学 2015-06-15 Kenji Bekki

We investigate the redshift (z) evolution of dust properties, its dependences on initial conditions of galaxy formation, and physical correlations between dust, gas, and stellar contents at different z based on our original chemodynamical…

星系天体物理 · 物理学 2015-06-23 Kenji Bekki

We present models for the evolution of the elemental abundances in the gas and dust phases of the interstellar medium (ISM) of our Galaxy by generalizing standard models for its dynamical and chemical evolution. In these models, the stellar…

天体物理学 · 物理学 2009-10-30 Eli Dwek

We aim to measure the average dust and molecular gas content of massive star-forming galaxies ($\rm > 3 \times 10^{10}\,M_\odot$) up to z=4 in the COSMOS field to determine if the intense star formation observed at high redshift is induced…

We study the dust content of galaxies from $z=0$ to $z=9$ in semi-analytic models of galaxy formation that include new recipes to track the production and destruction of dust. We include condensation of dust in stellar ejecta, the growth of…

星系天体物理 · 物理学 2017-06-21 Gergö Popping , Rachel S. Somerville , Maud Galametz

Dust plays an important role in the evolution of a galaxy, since it is one of the main ingredients for efficient star formation. Dust grains are also a sink/source of metals when they are created/destroyed, and, therefore, a self-consistent…

星系天体物理 · 物理学 2020-04-08 I. Millán-Irigoyen , M. Mollá , Y. Ascasibar

Since the epoch of cosmic star formation peak at $z \sim 2$, most of it is obscured in high mass galaxies, while in low mass galaxies the radiation escapes unobstructed. During the reionization epoch, the presence of evolved, dust obscured…

星系天体物理 · 物理学 2020-10-21 J. H. Barbosa-Santos , Gastão B. Lima Neto , Amancio C. S. Friaça

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

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

We study interstellar dust evolution in various environments by means of chemical evolution models for galaxies of different morphological types. We start from the formalism developed by Dwek (1998) to study dust evolution in the solar…

天体物理学 · 物理学 2008-01-17 F. Calura , A. Pipino , F. Matteucci , -

Context: Dust grains undergo significant growth in star-forming environments, especially in dense regions prone to gravitational collapse. Although dust is generally assumed to represent $1 \%$ of the gas mass, dust density variations are…

星系天体物理 · 物理学 2026-01-14 V. Vallucci-Goy , P. Hennebelle , U. Lebreuilly , G. Verrier

Extinction curves, especially those in the Milky Way (MW), the Large Magellanic Cloud (LMC), and the Small Magellanic Cloud (SMC), have provided us with a clue to the dust properties in the nearby Universe. We examine whether or not these…

星系天体物理 · 物理学 2016-09-22 Kuan-Chou Hou , Hiroyuki Hirashita , Michał J. Michałowski

We introduce a model for the explicit evolution of interstellar dust in a cosmological galaxy formation simulation. We post-process a simulation from the Cosmic Reionization on Computers project (CROC, Gnedin 2014), integrating an ordinary…

星系天体物理 · 物理学 2022-11-30 Clarke J. Esmerian , Nickolay Y. Gnedin

Interstellar dust grains do not have a single well-defined origin. Stars are demonstrably dust producers, but also efficient destroyers of cosmic dust. Dust destruction in the ISM is believed to be the result of SN shocks hitting the…

星系天体物理 · 物理学 2016-06-24 Lars Mattsson

We introduce a model for dust evolution in the RAMSES code for simulations of galaxies with a resolved multiphase interstellar medium. Dust is modelled as a fluid transported with the gas component, and is decomposed into two sizes, 5 nm…

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

We implement a state-of-the-art treatment of the processes affecting the production and Interstellar Medium (ISM) evolution of carbonaceous and silicate dust grains within SPH simulations. We trace the dust grain size distribution by means…

We study the effects of the integrated galactic initial mass function (IGIMF) and dust evolution on the abundance patterns of high redshift starburst galaxies. In our chemical models, the rapid collapse of gas clouds triggers an intense and…

星系天体物理 · 物理学 2020-04-15 Marco Palla , Francesco Calura , Francesca Matteucci , XiLong Fan , Fiorenzo Vincenzo , Elena Lacchin

An important aspect of quenching star formation is the removal of the cold interstellar medium (ISM; non-ionised gas and dust) from a galaxy. In addition, dust grains can be destroyed in a hot or turbulent medium. The adopted timescale of…