中文
相关论文

相关论文: Comparison of cosmological simulations and deep su…

200 篇论文

We present new results from the SCUBA Local Universe Galaxy Survey, the first large statistical submillimetre survey of the local Universe. Following our initial survey of a sample of 104 IRAS-selected galaxies we now present the results of…

天体物理学 · 物理学 2007-05-23 Catherine Vlahakis , Loretta Dunne , Stephen Eales

Nearby dwarf irregular galaxies are ideal laboratories for studying the interstellar medium (ISM) at low metallicity, which is expected to be common for galaxies at very high redshift being observed by the James Webb Space Telescope. We…

星系天体物理 · 物理学 2023-08-02 Chia-Yu Hu , Amiel Sternberg , Ewine F. van Dishoeck

The galaxy luminosity function and galaxy stellar mass function are fundamental statistics in the testing of galaxy formation models. Theoretical predictions based on cosmological simulations can deviate from observations, especially at the…

宇宙学与河外天体物理 · 物理学 2021-10-18 Lin Tang , Weipeng Lin , Yang Wang , N. R. Napolitano

We measure the local galaxy far-infrared (FIR) 60-to-100 um colour-luminosity distribution using an all-sky IRAS survey. This distribution is an important reference for the next generation of FIR--submillimetre surveys that have and will…

天体物理学 · 物理学 2010-11-08 Edward L. Chapin , David H. Hughes , Itziar Aretxaga

Recently Menard et al. detected a subtle but systematic change in the mean color of quasars as a function of their projected separation from foreground galaxies, extending to comoving separations of ~10Mpc/h, which they interpret as a…

宇宙学与河外天体物理 · 物理学 2011-01-06 Ying Zu , David H. Weinberg , Romeel Davé , Mark Fardal , Neal Katz , Dusan Keres , Benjamin D. Oppenheimer

Previous modelling has demonstrated that it is difficult to reproduce the SCUBA source counts within the framework of standard hierarchical structure formation models if the sources are assumed to be the high-redshift counterparts of local…

天体物理学 · 物理学 2009-11-07 Ali Kaviani , Martin G. Haehnelt , Guinevere Kauffmann

We discuss the rest-frame UV emission between 5< z < 7 from the MareNostrum High-z Universe, a SPH simulation done with more than 2 billion particles. Cosmological simulations of galaxy formation generally overpredict the UV restframe…

宇宙学与河外天体物理 · 物理学 2015-05-14 J. E. Forero-Romero , G. Yepes , S. Gottloeber , S. R. Knollmann , A. Khalatyan , A. J. Cuesta , F. Prada

The EAGLE cosmological simulations reproduce the observed galaxy stellar mass function and many galaxy properties. In this work, we study the dust-related properties of present-day EAGLE galaxies through mock observations in the…

星系天体物理 · 物理学 2016-08-17 Peter Camps , James W. Trayford , Maarten Baes , Tom Theuns , Matthieu Schaller , Joop Schaye

Context: Several observations of the local Universe (LU) point towards the existence of very prominent structures. The presence of massive galaxy clusters and local super clusters on the one hand, but also large local voids and…

We present a new evolutionary model for the far-UV to sub-mm properties of the galaxy population. This combines a semi-analytic galaxy formation model based on hierarchical clustering (GALFORM) with a spectro-photometric code which includes…

天体物理学 · 物理学 2009-10-31 G. L. Granato , C. G. Lacey , L. Silva , A. Bressan , C. M. Baugh , S. Cole , C. S. Frenk

We develop a new realistic prescription for modeling the stellar feedback, which minimizes any ad hoc assumptions about sub-grid physics. We start with developing high resolution models of the ISM and formulate the conditions required for…

天体物理学 · 物理学 2009-04-03 Daniel Ceverino , Anatoly Klypin

A new Monte-Carlo radiative-transfer code, Sunrise, is used to study the effects of dust in N-body/hydrodynamic simulations of interacting galaxies. Dust has a profound effect on the appearance of the simulated galaxies. At peak…

天体物理学 · 物理学 2009-08-05 Patrik Jonsson , T. J. Cox , Joel R. Primack

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 present a simple model of the infra-red universe, based as much as possible on local observations. We model the luminosity and number evolution of disk and starburst galaxies, including the effects of dust, gas and spectral evolution.…

天体物理学 · 物理学 2009-10-31 Jonathan C. Tan , Joe Silk , Christophe Balland

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

We present infrared luminosity functions and dust mass functions for the EAGLE cosmological simulation, based on synthetic multi-wavelength observations generated with the SKIRT radiative transfer code. In the local Universe, we reproduce…

This paper combines observational datasets and cosmological simulations to generate realistic numerical replicas of the nearby Universe. These latter are excellent laboratories for studies of the non-linear process of structure formation in…

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…

Dust temperature is an important property of the interstellar medium (ISM) of galaxies. It is required when converting (sub)millimeter broadband flux to total infrared luminosity (L_IR), and hence star formation rate, in high-z galaxies.…

We have used SCUBA to survey an area of 50 square arcmin, detecting 19 sources down to a 3sigma sensitivity limit of 3.5 mJy at 850 microns. We have used Monte-Carlo simulations to assess the effect of source confusion and noise on the…

天体物理学 · 物理学 2009-10-31 Stephen Eales , Simon Lilly , Tracy Webb , Loretta Dunne , Walter Gear , David Clements , Min Yun