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相关论文: The Galactic 3D large-scale dust distribution via …

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We present 65 extremely dust-obscured galaxies from the UltraVISTA DR3 survey of the COSMOS field at $1<z<4$. In contrast to other studies of dusty galaxies, we select our sample based on dust attenuation measured by UV-MIR spectral energy…

星系天体物理 · 物理学 2022-12-07 Nicholas S. Martis , Danilo M. Marchesini , Adam Muzzin , Chris J. Willot , Marcin Sawicki

We present high-resolution maps of the dust reddening in the Magellanic Clouds (MCs). The maps cover the Large and Small Magellanic Cloud (LMC and SMC) area and have a spatial angular resolution between $\sim$ 26 arcsec and 55 arcmin. Based…

星系天体物理 · 物理学 2022-01-19 B. -Q. Chen , H. -L. Guo , J. Gao , M. Yang , Y. -L. Liu , B. -W. Jiang

Dust emission at sub-millimetre wavelengths allows us to trace the early phases of star formation in the Universe. In order to understand the physical processes involved in this mode of star formation, it is essential to gain knowledge…

Following from our recent work, we present results of a detailed analysis of a representative sample of nearby galaxies. The photometric parameters of the morphological components are obtained from bulge-disk decompositions, using GALFIT…

星系天体物理 · 物理学 2023-06-16 Bogdan A. Pastrav

Inferences about the spatial density or phase-space structure of stellar populations in the Milky Way require a precise determination of the effective survey volume. The volume observed by surveys such as Gaia or near-infrared spectroscopic…

星系天体物理 · 物理学 2016-06-07 Jo Bovy , Hans-Walter Rix , Gregory M. Green , Edward F. Schlafly , Douglas P. Finkbeiner

For many decades, dust has been recognised as an important ingredient in galaxy formation and evolution. This paper presents a novel self-consistent implementation of dust formation by stars, destruction by supernova shocks and hot gas, and…

星系天体物理 · 物理学 2025-12-19 Omima Osman , Gabriella De Lucia , Fabio Fontanot , Lizhi Xie , Michaela Hirschmann

The aim of this study is to examine dust dynamics on a large scale and investigate the coupling of dust with gas fluid in the star formation process. We propose a method for calculating the dust trajectory in a gravitationally collapsing…

星系天体物理 · 物理学 2022-08-17 Shunta Koga , Yoshihiro Kawasaki , Masahiro N. Machida

Results. We illustrate our profile-fitting technique and present the K\,{\sc i} velocity structure of the dense ISM along the paths to all targets. As a validation test of the dust map, we show comparisons between distances to several…

星系天体物理 · 物理学 2021-08-04 A. Ivanova , R. Lallement , J. L. Vergely , C. Hottier

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

We study the morphological properties of mid-infrared selected galaxies at $1.0<z<1.7$ in the SMACS J0723.3-7327 cluster field, to investigate the mechanisms of galaxy mass assembly and structural formation at cosmic noon. We develop a new…

星系天体物理 · 物理学 2023-08-14 Zhaoran Liu , Takahiro Morishita , Tadayuki Kodama

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…

Modern cosmological surveys such as the Hyper Suprime-Cam (HSC) survey produce a huge volume of low-resolution images of both distant galaxies and dim stars in our own galaxy. Being able to automatically classify these images is a…

天体物理仪器与方法 · 物理学 2020-10-14 Imène R. Goumiri , Amanda L. Muyskens , Michael D. Schneider , Benjamin W. Priest , Robert E. Armstrong

M31 and M33 serve as ideal places to study distributions of dust in the outskirts of spiral galaxies. In this letter, using about 0.2 million stars selected from the LAMOST data and combining precise photometry and parallaxes from the Gaia…

星系天体物理 · 物理学 2021-02-05 Ruoyi Zhang , Haibo Yuan

We develop a method to estimate the dust attenuation curve of galaxies from full spectral fitting of their optical spectra. Motivated from previous studies, we separate the small-scale features from the large-scale spectral shape, by…

星系天体物理 · 物理学 2020-06-17 Niu Li , Cheng Li , Houjun Mo , Jian Hu , Shuang Zhou , Cheng Du

We examine the three-dimensional structure and dust extinction properties in a ~ 200 pc $\times$ 100 pc region in the southwest bar of the Small Magellanic Cloud (SMC). We model a deep Hubble Space Telescope optical color-magnitude diagram…

Interstellar dust is a significant component of matter in the galaxies. The dust owns its origin and reprocessing in a wide range of astrophysical environments. In order to understand the origin and evolution of the distinct types of…

太阳与恒星天体物理 · 物理学 2020-04-24 Anuj Gupta , Sandeep Sahijpal

We use SDSS photometry of 73 million stars to simultaneously obtain best-fit main-sequence stellar energy distribution (SED) and amount of dust extinction along the line of sight towards each star. Using a subsample of 23 million stars with…

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 , -

We present the first direct and unbiased measurement of the evolution of the dust mass function of galaxies over the past 5 billion years of cosmic history using data from the Science Demonstration Phase of the Herschel-ATLAS. The sample…

We present a simultaneous detection of gravitational magnification and dust reddening effects due to galactic halos and large-scale structure. The measurement is based on correlating the brightness of ~85,000 quasars at z>1 with the…

宇宙学与河外天体物理 · 物理学 2015-05-13 Brice Ménard , Ryan Scranton , Masataka Fukugita , Gordon Richards