中文
相关论文

相关论文: Dust diffusion in SPH simulations of an isolated g…

200 篇论文

Understanding the evolution of dust and molecular hydrogen (H$_2$) is a critical aspect of galaxy evolution, as they affect star formation and the spectral energy distribution of galaxies. We use the $N$-body/smoothed-particle-hydrodynamics…

星系天体物理 · 物理学 2022-05-25 Leonard E. C. Romano , Kentaro Nagamine , Hiroyuki Hirashita

We present the first implementation of an evolving dust grain size distribution (GSD) within a semi-analytic cosmological model (SAM) of galaxy evolution. This flexible model self-consistently accounts for stellar dust production,…

星系天体物理 · 物理学 2026-04-09 Massimiliano Parente , Desika Narayanan , Paul Torrey

We compute the evolution of interstellar dust in a hydrodynamic simulation of an isolated disc galaxy. We newly implement the evolution of full grain size distribution by sampling 32 grid points on the axis of the grain radius. We solve it…

星系天体物理 · 物理学 2020-01-08 Shohei Aoyama , Hiroyuki Hirashita , Kentaro Nagamine

We propose an updated dust evolution model that focuses on the grain size distribution in a galaxy. We treat the galaxy as a one-zone object and include five main processes (stellar dust production, dust destruction in supernova shocks,…

星系天体物理 · 物理学 2022-11-30 Hiroyuki Hirashita

We model dust evolution in Milky Way-like galaxies by post-processing the IllustrisTNG cosmological hydrodynamical simulations in order to predict dust-to-gas ratios and grain size distributions. We treat grain-size-dependent dust growth…

星系天体物理 · 物理学 2020-12-09 Yu-Hsiu Huang , Hiroyuki Hirashita , Yun-Hsin Hsu , Yen-Ting Lin , Dylan Nelson , Andrew P. Cooper

We perform smoothed particle hydrodynamics (SPH) simulations of an isolated galaxy with a new treatment for dust formation and destruction. To this aim, we treat dust and metal production self-consistently with star formation and supernova…

We investigate the cosmological evolution of interstellar dust with a semi-analytical galaxy formation model ($\nu^2$GC), focusing on the evolution of grain size distribution. The model predicts the statistical properties of dust mass and…

星系天体物理 · 物理学 2022-10-13 Ryu Makiya , Hiroyuki Hirashita

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…

Dust is formed out of stellar material and is constantly affected by different mechanisms occurring in the ISM. Dust grains behave differently under these mechanisms depending on their sizes, and therefore the dust grain size distribution…

星系天体物理 · 物理学 2020-04-08 M. Relano , U. Lisenfeld , K. C. Hou , I. De Looze , J. M. Vilchez , R. C. Kennicutt

We show that the growth rate of dust grains in cold molecular clouds is enhanced by the high degree of compressibility of a turbulent, dilute gas. By means of high resolution (10243) numerical simulations, we confirm the theory that the…

星系天体物理 · 物理学 2020-11-18 Xiang-Yu Li , Lars Mattsson

The spectral energy distribution (SED) of galaxies provides fundamental information on the related physical processes. However, the SED is significantly affected by dust in its interstellar medium. Dust is mainly produced by asymptotic…

星系天体物理 · 物理学 2022-05-25 Kazuki Y. Nishida , Tsutomu T. Takeuchi , Takuma Nagata , Ryosuke S. Asano

We revisit the evolution model of grain size distribution in a galaxy for the ultimate purpose of implementing it in hydrodynamical simulations. We simplify the previous model in such a way that some model-dependent assumptions are replaced…

星系天体物理 · 物理学 2018-10-31 Hiroyuki Hirashita , Shohei Aoyama

The evolution of the dust grain size distribution has been studied in recent years with great detail in cosmological hydrodynamical simulations taking into account all the channels under which dust evolves in the interstellar medium. We…

To understand how the evolution of grain size distribution in galaxies affects observed dust properties, we apply a post-processing dust evolution model to galaxy merger trees from the IllustrisTNG cosmological hydrodynamical simulation.…

星系天体物理 · 物理学 2022-04-20 Chiung-Yin Chang , Yu-Hsiu Huang , Hiroyuki Hirashita , Andrew P. Cooper

We investigate the impacts of the evolution of dust mass and grain size distribution within a Milky Way-like (MW-like) galaxy simulation on global attenuation curves, focusing on the optical-UV slope and the 2175 $AA$ bump. We discuss the…

We present the first large-scale, high-resolution simulations of dusty, star formation feedback-driven galactic outflows. Using the Cholla hydrodynamics code, we investigate dust sputtering in these environments for grains ranging in size…

星系天体物理 · 物理学 2026-03-09 Helena M. Richie , Evan E. Schneider

We present the results of a three dimensional, locally isothermal, non-self-gravitating SPH code which models protoplanetary disks with two fluids: gas and dust. We ran simulations of a 1 Msun star surrounded by a 0.01 Msun disk comprising…

We develop a model of dust evolution in a multiphase, inhomogeneous ISM including dust growth and destruction processes. The physical conditions for grain evolution are taken from hydrodynamical simulations of giant molecular clouds in a…

星系天体物理 · 物理学 2016-11-09 Svitlana Zhukovska , Clare Dobbs , Edward B. Jenkins , Ralf Klessen

Planet formation in the discs around young stars involves the coagulation of sub-micron sized dust grains into much larger grains that may be mixed by turbulence and migrate through the disc. In this paper, we describe how we have combined…

地球与行星天体物理 · 物理学 2026-02-04 Matthew R. Bate , Mark A. Hutchison , Daniel Elsender

The dust grain size distribution (GSD) likely varies significantly across star-forming environments in the Universe, but its impact on star formation remains unclear. This ambiguity arises because the GSD interacts non-linearly with…

星系天体物理 · 物理学 2024-10-08 Nadine H. Soliman , Philip F. Hopkins , Michael Y. Grudić
‹ 上一页 1 2 3 10 下一页 ›