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 grain size distribution by two sizes and takes into account stellar dust production and interstellar dust processing. We examine the dust mass function and the scaling properties of dust in terms of the characteristics of galaxies. The simulation broadly reproduces the observed dust mass functions at redshift $z = 0$, except that it overproduces the massive end at dust mass $M_\mathrm{d} \gtrsim 10^{8}$ ${\rm M}_\odot$. This overabundance is due to overproducing massive gas/metal-rich systems, but we also note that the relation between stellar mass and gas-phase metallicity is reproduced fairly well by our recipe. The relation between dust-to-gas ratio and metallicity shows a good agreement with the observed one at $z=0$, which indicates successful implementation of dust evolution in our cosmological simulation. Star formation consumes not only gas but also dust, causing a decreasing trend of the dust-to-stellar mass ratio at the high-mass end of galaxies. We also examine the redshift evolution up to $z \sim~ 5$, and find that the galaxies have on average the highest dust mass at $z = 1-2$. For the grain size distribution, we find that galaxies with metallicity $\sim 0.3~ Z_\odot$ tend to have the highest small-to-large grain abundance ratio; consequently, the extinction curves in those galaxies have the steepest ultraviolet slopes.
The Pantheon+ Analysis: Forward-Modeling the Dust and Intrinsic Colour Distributions of Type Ia Supernovae, and Quantifying their Impact on Cosmological Inferences
DUSTiER (DUST in the Epoch of Reionization): dusty galaxies in cosmological radiation-hydrodynamical simulations of the Epoch of Reionization with RAMSES-CUDATON
近年来,星际尘埃已成为高红移宇宙和甚高红移宇宙研究中的一个重要课题。证据表明,在再电离时期,大质量恒星形成星系中已经存在高尘埃质量,可能影响电离光子逃逸到星系际介质中。此外,正确估计紫外波长处的尘埃消光对于精确的紫外光度函数(UVLF)预测和解释至关重要。本文研究了尘埃对高红移星系观测性质的影响,以及宇宙再电离。为此,我们耦合的物理模型尘埃生产的完全耦合的辐射流体动力学宇宙学模拟代码RAMSES-CUDATON,并执行$16^3$,$2048^3$,模拟,我们称之为DUSTiER的尘埃在再电离时代。它产生的星系与尘埃质量和紫外线斜率兼容的限制在z $\geq 5$。我们发现,消光对UVLF的亮端有着巨大的影响,甚至早在$\rm z=8$,我们的尘埃UVLF比无尘UVLF更符合观测。在$\rm z=5$中,被遮蔽的恒星形成的比例上升到45%,与ALMA的一些最新结果一致。最后,我们发现尘埃减少了质量比$10^{10} M_\odot$(比$\approx -18$ MAB 1600亮)大的星系的电离光子逃逸> 10%,对于我们最大的星系可能高达80-90%。然而,我们发现电离逃逸分数首先是由星系中的中性氢决定的,因为后者产生的传输比单独通过尘埃小100倍。
Simultaneous Estimation of Large-Scale Structure and Milky Way Dust Extinction from Galaxy Surveys
下一代星系巡天提供的高宇宙学精度取决于对银河尘埃消光的改进修正。我们探索的可能性估计的尘埃消光和大尺度结构从一个单一的光度星系调查,利用可预测的方式,银河系尘埃影响测量的亮度和颜色的星系在一个给定的天空位置在几个红移箱。为了测试我们的方法,我们使用了一个来自宇宙学模拟的合成目录来模拟Vera C。Rubin Observatory Legacy Survey of Space and Time的照片在银河系高纬度($|b|\gtrsim20^\circ$)和$1^\circ$($7'$)的分辨率下,我们预测尘埃消光测量的不确定度$E(B-V)$为$0.005\ \mathrm{mag}$($0.015\ \mathrm{mag}$)。这与现有尘埃图的不确定性相似,说明了我们方法的可行性。同时估算星系的大尺度结构,预计可以恢复星系的超密度$δ$,其精度为$1^\circ$($7'$)分辨率下的$\sim0.01$($\sim0.05$)。我们还介绍了贝叶斯形式主义,结合现有的尘埃地图的先验信息与银河系尘埃灭绝的可能性,从观测到的星系属性的漂移确定。
Modelling the evolution and influence of dust in cosmological simulations that include the cold phase of the interstellar medium
University of Portsmouth(朴茨茅斯大学);Leiden University(莱顿大学);University of Vienna(维也纳大学);University of Hull(赫尔大学);Lorentz Institute for Theoretical Physics, Leiden University(莱顿大学洛伦兹理论物理研究所);University of Milano-Bicocca(米兰比可卡大学);Durham University(杜伦大学)
The COLIBRE-SKIRT pipeline: Calibration-free dust radiative transfer postprocessing for cosmological simulations
Universiteit Gent(根特大学);Leiden University(莱顿大学);University of Western Australia(西澳大利亚大学);University of Durham(杜伦大学);Università degli Studi di Milano Bicocca(米兰比可卡大学);Liverpool John Moores University(利物浦约翰摩尔斯大学);University of Vienna(维也纳大学);University of Hull(赫尔大学);University of Portsmouth(朴茨茅斯大学);University of Sussex(萨塞克斯大学)
The evolution of galaxy dust scaling relations in the COLIBRE simulations
University of Sussex(萨塞克斯大学);University of Hertfordshire(赫特福德大学);Leiden University(莱顿大学);University of Vienna(维也纳大学);Universiteit Gent(根特大学);Università degli Studi di Milano-Bicocca(米兰比可卡大学);University of Durham(杜伦大学)
研究COLIBRE模拟中星系尘埃标度关系在宇宙时间(\(0 \le z \le 15\))的演化,通过自洽追踪尘埃过程,利用不同质量分辨率预测相关关系,发现其受分辨率和气相选择影响,凸显模型能力与限制,为完善星际介质物理提供见解。
Relation of internal attenuation, dust emission, and the size of spiral galaxies. Calibration at low-z and how to use it as a cosmological test at high-z
From stardust to interstellar grain growth in the first galaxies: a cosmological transition in dust evolution near z ~ 8.9
Aix Marseille Université, CNRS, CNES, LAM(艾克斯马赛大学);Chalmers University of Technology(查尔姆斯理工大学);Dipartimento di Fisica, “Sapienza” Università di Roma(罗马智慧大学物理系);INAF/Osservatorio Astronomico di Roma(意大利国家天体物理研究所罗马天文台);INFN, Sezione di Roma I(意大利国家核物理研究所罗马第一分部);Sapienza School for Advanced Studies(罗马智慧大学高等研究院);Institute of Astronomy and Astrophysics, Academia Sinica(中央研究院天文及天文物理学研究所)
The ISM scaling relations in DustPedia late-type galaxies: A benchmark study for the Local Universe
这项工作的目的是所有的ISM组件(灰尘,原子/分子/总气体),气相金属丰度,和其他星系的属性,如Mstar和星系形态,晚型星系在本地宇宙的主要标度关系的表征。这项研究是通过从整个DustPedia样本中提取晚型星系,并利用DustPedia项目提供的大型均匀数据集进行的。样本由436个星系组成,其形态阶段从T = 1到10,M星从6 x 10^7到3 x 10^11 Msun,SFR从6 x 10^(-4)到60 Msun/yr,12 + log(O/H)从8到9.5。涉及分子气体的标度关系进行了研究,通过假设一个常数和金属度依赖的XCO。通过生存分析技术进行分析。我们证实,尘埃质量与总气体质量的相关性非常好,并发现-第一次-尘埃质量与原子气体质量的相关性比分子更好。我们表征重要的质量比,如气体分数,分子与原子气体质量比,尘埃总气体质量比(DGR),尘埃与恒星质量比。只有假设的金属依赖XCO再现预期的DGR减少形态阶段的增加和减少气相金属,斜率约为1。DGR,气相金属丰度和尘埃与恒星的质量比,对于我们的星系样本,直接与星系形态。分子-原子气体质量比和DGR在低分子气体组分中呈现正相关,但在富含分子气体的星系中,这种趋势被打破。据我们所知,这种趋势以前从未发现过。这为星系演化的理论模型提供了新的约束条件,也为高红移研究提供了参考。
Exploring the observed properties of JWST Little Red Dots with cosmological simulations and dust radiative transfer
Scuola Normale Superiore(比萨高等师范学院);Cosmic Frontier Center, University of Texas at Austin(德克萨斯大学奥斯汀分校宇宙前沿中心);INAF - Osservatorio Astronomico di Roma(罗马天文台(意大利国家天体物理研究所));Dipartimento di Fisica dell’Università di Trieste, Sez. di Astronomia(的里雅斯特大学物理系天文学部);INAF - Osservatorio Astronomico di Trieste(的里雅斯特天文台(意大利国家天体物理研究所));INFN - Istituto Nazionale di Fisica Nucleare(意大利国家核物理研究所);INAF OAS -Osservatorio di astrofisica e scienza dello spazio(空间天体物理学与科学观测站(意大利国家天体物理研究所))