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相关论文: Cosmic Reionization On Computers. Ultraviolet Cont…

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We model the interstellar dust content of the reionization era with a suite of cosmological, fluid-dynamical simulations of galaxies with stellar masses ranging from $\sim 10^5 - 10^9 M_{\odot}$ in the first $1.2$ billion years of the…

星系天体物理 · 物理学 2023-08-24 Clarke J. Esmerian , Nickolay Y. Gnedin

Cosmic Reionization On Computers (CROC) is a long-term program of numerical simulations of cosmic reionization. Its goal is to model fully self-consistently (albeit not necessarily from the first principles) all relevant physics, from…

宇宙学与河外天体物理 · 物理学 2015-06-19 Nickolay Y. Gnedin

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

In this paper I show that simulations of reionization performed under the Cosmic Reionization On Computers (CROC) project do converge in space and mass, albeit rather slowly. A fully converged solution (for a given star formation and…

宇宙学与河外天体物理 · 物理学 2016-04-20 Nickolay Y. Gnedin

We explore the connection between the stellar component of galaxies and their host halos during the epoch of reionization ($5 \leq z\leq10$) using the CROC (Cosmic Reionization on Computers) simulations. We compare simulated galaxies with…

星系天体物理 · 物理学 2021-04-20 Hanjue Zhu , Camille Avestruz , Nickolay Y. Gnedin

We present a comparison between several observational tests of the post-reionization IGM and the numerical simulations of reionization completed under the Cosmic Reionization On Computers (CROC) project. The CROC simulations match the gap…

宇宙学与河外天体物理 · 物理学 2017-05-31 Nickolay Y. Gnedin , George D. Becker , Xiaohui Fan

Context. The UVJ color-color diagram is a widely used diagnostic to separate star-forming and quiescent galaxies. Observational data from photometric surveys reveal a strong stellar mass trend, with higher-mass star-forming galaxies being…

We compare the results from several sets of cosmological simulations of cosmic reionization, produced under Cosmic Reionization On Computers (CROC) project, with existing observational data on the high-redshift Ly-alpha forest and the…

宇宙学与河外天体物理 · 物理学 2015-06-19 Nickolay Y. Gnedin , Alexander A. Kaurov

Recent observations have revealed puzzling spatial disparities between ALMA dust continuum and UV emission as seen by HST and JWST in galaxies at $z=5-7$ (e.g. ALPINE and REBELS surveys), compelling us to propose a physical interpretation…

Quasar absorption lines provide a unique window to the relationship between galaxies and the intergalactic medium during the Epoch of Reionization. In particular, high redshift quasars enable measurements of the neutral hydrogen content of…

宇宙学与河外天体物理 · 物理学 2025-03-17 Ella Werre , David Robinson , Camille Avestruz , Nickolay Y. Gnedin

Lyman limit systems (LLSs) are dense hydrogen clouds with high enough HI column densities to absorb Lyman continuum photons emitted from distant quasars. Their high column densities imply an origin in dense environments; however, the…

星系天体物理 · 物理学 2024-03-04 Jiawen Fan , Hanjue Zhu , Camille Avestruz , Nickolay Y. Gnedin

JWST has transformed our understanding of early galaxy formation, providing an unprecedented view of the first billion years of cosmic history. In this work, we build upon our previously developed semi-analytical framework that…

星系天体物理 · 物理学 2026-01-12 Anirban Chakraborty , Tirthankar Roy Choudhury

Thermal dust emission carries information on physical conditions and dust properties in many astronomical sources. Because observations represent a sum of emission along the line of sight, their interpretation often requires radiative…

天体物理仪器与方法 · 物理学 2019-02-06 M. Juvela

In recent years, interstellar dust has become a crucial topic in the study of the high and very high redshift Universe. Evidence points to the existence of high dust masses in massive star forming galaxies already during the Epoch of…

Using the First Light And Reionisation Epoch Simulations (\textsc{Flares}) we explore the dust driven properties of massive high-redshift galaxies at $z\in[5,10]$. By post-processing the galaxy sample using the radiative transfer code…

I compare the power spectra of the radiation fields from two recent sets of fully coupled simulations that model cosmic reionization: "Cosmic Reionization On Computers" (CROC) and "Thesan". While both simulations have similar power spectra…

宇宙学与河外天体物理 · 物理学 2025-07-23 Nickolay Y. Gnedin

We analyze the distribution of rest-frame U-V and V-J colors for star-forming galaxies at 0.5 < z < 2.5. Using stellar population synthesis, stochastic star formation histories, and a simple prescription for the dust attenuation that…

星系天体物理 · 物理学 2021-12-08 Leah Zuckerman , Sirio Belli , Joel Leja , Sandro Tacchella

The low-redshift mass-metallicity relation (MZR) is well studied, but the high-redshift MZR remains difficult to observe. To study the early MZR further, we analyze the Cosmic Reionization on Computers (CROC) simulations with a focus on the…

星系天体物理 · 物理学 2022-11-01 Isaac Noel , Hanjue Zhu , Nickolay Gnedin

With numerical simulations that employ adaptive ray-tracing (ART) for radiative transfer at the same time as evolving gas magnetohydrodynamics, thermodynamics, and photochemistry, it is possible to obtain a high resolution view of…

星系天体物理 · 物理学 2024-09-11 Nora B. Linzer , Jeong-Gyu Kim , Chang-Goo Kim , Eve C. Ostriker

As a tool to interpret nearby and high redshift galaxy data from optical to K-band we present our chemically consistent spectrophotometric evolutionary synthesis models. These models take into account the increasing initial metallicity of…

天体物理学 · 物理学 2009-10-31 C. S. Möller , U. Fritze-v. Alvensleben , K. J. Fricke , D. Calzetti
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