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We present and analyse high-quality SCUBA 850- and 450-um images of 14 local spiral galaxies, including the detection of dust well out into the extended disk in many cases. We use these data in conjunction with published far-IR flux…

天体物理学 · 物理学 2009-11-10 J. A. Stevens , M. Amure , W. K. Gear

Quantifying changes in galaxies' interstellar medium (ISM) abundance after quenching star formation is an important aspect of galaxy evolution, but it is poorly constrained beyond the local universe. We characterise the dust-related…

We predict the metallicity probability distribution function (PDF) of long gamma-ray burst (GRB) host galaxies at low-redshifts ($z \la 0.3$) when GRBs occur only in low-metallicity environment, assuming empirical formulations of galaxy…

宇宙学与河外天体物理 · 物理学 2015-05-27 Yuu Niino

While dust is a major player in galaxy evolution, its relationship with gas and stellar radiation in the early universe is still not well understood. We combine 3D-HST emission line fluxes with far-UV through far-IR photometry in a sample…

星系天体物理 · 物理学 2021-06-02 Gautam Nagaraj , Robin Ciardullo , William Bowman , Caryl Gronwall

We study the internal structural properties of 37 long duration gamma-ray burst (GRB) host galaxies imaged with the Hubble Space Telescope. Fitting exponential disk and r^1/4 models to the surface brightness profiles of eight z < 1.2 bright…

We present a novel scenario for the growth of dust grains in galaxies at high-redshift ($z\sim 6$). In our model, the mechanical feedback from massive star clusters evolving within high-density pre-enriched media allows to pile-up a large…

星系天体物理 · 物理学 2021-09-02 Sergio Martínez-González , Sergiy Silich , Guillermo Tenorio-Tagle

We present the evolution of dust and molecular gas properties in a sample of 11 $z\sim0.03$ starburst to post-starburst (PSB) galaxies selected to span an age sequence from ongoing starburst to 1 Gyr after the starburst ended. All PSBs…

星系天体物理 · 物理学 2015-06-23 K. Rowlands , V. Wild , N. Nesvadba , B. Sibthorpe , A. Mortier , M. Lehnert , E. da Cunha

Cosmic dust is an important component of the Universe, and its origin, especially at high redshifts, is still unknown. I present a simple but powerful method of assessing whether dust observed in a given galaxy could in principle have been…

星系天体物理 · 物理学 2015-12-04 Michał J. Michałowski

Employing hydrodynamic simulations of structure formation in a LCDM cosmology, we study the history of cosmic star formation from the "dark ages" at redshift z~20 to the present. In addition to gravity and ordinary hydrodynamics, our model…

天体物理学 · 物理学 2009-11-07 Volker Springel , Lars Hernquist

We present deep submillimetre photometry for 14 galaxies at z=0.5 that are hosts of type 1a supernovae, with the aim of examining the evolution of dust mass and extinction in normal galaxies. We combine these results with our previous…

天体物理学 · 物理学 2009-11-13 D. L. Clements , D. Farrah , M. Rowan-Robinson , J. Afonso , R. Priddey , M. Fox

Recent observations have revealed that dust is widespread and abundant in galaxies up to $z\,{\backsimeq}\,8$, significantly influencing their appearance and spectral properties. In the early Universe, dust is thought to form primarily in…

星系天体物理 · 物理学 2025-09-16 He Zhao , Bingqiu Chen , Jun Li

Popular models for the origin of gamma-ray bursts (GRBs) include short-lived massive stars as the progenitors of the fireballs. Hence the redshift distribution of GRBs should track the cosmic star formation rate of massive stars accurately.…

天体物理学 · 物理学 2009-10-31 Andrew W. Blain , Priyamvada Natarajan

Among the key parameters defining the ISM of galaxies is the fraction of the metals that are locked up in dust: the metals-to-dust ratio. This ratio bears not only on the ISM and its evolution, but particularly on the origin of cosmic dust.…

宇宙学与河外天体物理 · 物理学 2013-12-03 Tayyaba Zafar , Darach Watson

JWST has measured an unprecedented abundance of galaxies above $z\gtrsim 4-5$, whose formation and evolution are still difficult to reconcile within traditional galaxy evolution models in a $\Lambda$CDM framework. Here, we present a study…

(Abridged) Until recently the information inferred from gamma-ray burst follow-up observations was mostly limited to optically bright afterglows, biasing all demographic studies against sight-lines that contain large amounts of dust. Here,…

We combine samples of nearby galaxies with Herschel photometry selected on their dust, metal, HI, and stellar mass content, and compare these to chemical evolution models in order to discriminate between different dust sources. In a…

At high redshift, the universe was so young that core-collapse supernovae (SNe) are suspected to be the dominant source of dust production. However, some observations indicate that the dust production by SNe is an inefficient process,…

宇宙学与河外天体物理 · 物理学 2011-10-18 Minsung Jang , Myungshin Im , Induk Lee , Yuji Urata , Lijin Huang , Hiroyuki Hirashita , Xiaohui Fan , Linhua Jiang

Over the last decade, the Atacama Large Millimeter Array has revealed massive, dusty star-forming galaxies at $z\gtrsim5$, and the James Webb Space Telescope is primed to uncover even more information about them. These observations need…

星系天体物理 · 物理学 2025-01-22 Caleb R. Choban , Samir Salim , Dušan Kereš , Christopher C. Hayward , Karin M. Sandstrom

This paper presents the first results from a model for chemical evolution that can be applied to N-body cosmological simulations and quantitatively compared to measured stellar abundances from large astronomical surveys. This model…

星系天体物理 · 物理学 2015-09-29 Brian D. Crosby , Brian W. O'Shea , Timothy C. Beers , Jason Tumlinson