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相关论文: Decoding the IRX-\beta\ dust attenuation relation …

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With the aim of investigating whether stellar sources can account for the >10^8 Msun dust masses inferred from mm/sub-mm observations of samples of 5<z<6.4 quasars,we develop a chemical evolution model which follows the evolution of metals…

宇宙学与河外天体物理 · 物理学 2015-05-13 Rosa Valiante , Raffaella Schneider , Simone Bianchi , Anja C. Andersen

In this paper, I have attempted to highlight key results from deep extragalactic surveys at mid-infrared wavelengths. I discuss advances in our understanding of dust enshrouded star-formation and AGN activity at 0<z<3 from IRAS, ISO and…

天体物理学 · 物理学 2007-05-23 Ranga-Ram Chary

We study the stellar mass-gas metallicity relation (MZR) which shows a significant scatter for a fixed stellar mass. By defining global environments, nodes, filaments, and voids within the Horizon Run 5 cosmological hydrodynamical…

Analysing a large representative sample of local galaxies (8707), we find that the variation in the shape of their dust attenuation curves is driven primarily by their structure, i.e., distribution of stars (and dust) within them. The…

星系天体物理 · 物理学 2022-05-10 Sonali Sachdeva , Biman B. Nath

[abridged] We analyze a sample of 9 massive clusters at 0.4<z<0.6 observed with MegaCam in 4 photometric bands (g,r,i,z) from the core to a radius of 5 Mpc (~4000 galaxies). Galaxy cluster candidates are selected using photometric redshifts…

宇宙学与河外天体物理 · 物理学 2015-05-13 M. Huertas-Company , G. Foex , G. Soucail , R. Pello

We investigate the far-infrared (IR) dust emission for 20 local star forming galaxies from the Key Insights on Nearby Galaxies: A Far-IR Survey with Herschel (KINGFISH) sample. We model the far-IR/submillimeter spectral energy distribution…

This paper investigate what is the main driver of the dust mass growth in the interstellar medium (ISM) by using a chemical evolution model of galaxy with metals (elements heavier than helium) in dust phase in addition to the total amount…

星系天体物理 · 物理学 2015-06-05 Ryosuke S. Asano , Tsutomu T. Takeuchi , Hiroyuki Hirashita , Akio K. Inoue

Molecular gas is the key ingredient of the star formation cycle, and tracing its dependencies on other galaxy properties is essential for understanding galaxy evolution. In this work, we explore the relation between the different phases of…

星系天体物理 · 物理学 2025-07-23 Francesco Salvestrini , Simone Bianchi , Edvige Corbelli

Galaxy properties are known to be affected by their environment. This is well established for the extremes of the density scales, between the high-density cluster environment and the low-density field. It is however not fully understood how…

星系天体物理 · 物理学 2024-09-20 Callum J. O'Kane , Ulrike Kuchner , Meghan E. Gray , Alfonso Aragón-Salamanca

We homogeneously analyzed the \chandra\ X-ray observations of 10 gravitational lenses, HE 0047-1756, QJ 0158-4325, SDSS 0246-0805, HE 0435-1223, SDSS 0924+0219, SDSS 1004+4112, HE 1104-1805, PG 1115+080, Q 1355-2257, and Q 2237+0305, to…

宇宙学与河外天体物理 · 物理学 2013-06-04 Bin Chen , Xinyu Dai , Christopher S. Kochanek , George Chartas

We are studying the effects of submm observations on the total dust mass and thus dust-to-gas mass ratio measurements. We gather a wide sample of galaxies that have been observed at submm wavelengths to model their Spectral Energy…

宇宙学与河外天体物理 · 物理学 2015-05-27 Maud Galametz , Suzanne C. Madden , Frederic Galliano , Sacha Hony , George J. Bendo , Marc Sauvage

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

We present photometric evolution models of galaxies, in which, in addition to the stellar component, the effects of an evolving dusty interstellar medium have been included with particular care. Starting from the work of Calura, Pipino &…

星系天体物理 · 物理学 2009-11-13 A. Schurer , F. Calura , L. Silva , A. Pipino , G. L. Granato , F. Matteucci , R. Maiolino

We study the sizes of galaxies in the Epoch of Reionization using a sample of ~100,000 galaxies from the BlueTides cosmological hydrodynamical simulation from z=7 to 11. We measure the galaxy sizes from stellar mass and luminosity maps,…

The nearby universe remains the best laboratory to understand physical properties of galaxies and is a reference for any comparison with high redshift observations. The all sky (or very large) surveys performed from the ultraviolet (UV) to…

宇宙学与河外天体物理 · 物理学 2015-05-27 V. Buat , E. Giovannoli , T. T. Takeuchi , S. Heinis , F. T. Yuan , D. Burgarella , S. Noll , J. Iglesias-Paramo

We present our analysis of UV attenuation by internal dust of a large sample (N=906 galaxies) of Lyman Break Galaxies (LBGs). Using spectral energy distributions (SEDs) from the P\'EGASE galaxy spectral evolution model we apply dust…

天体物理学 · 物理学 2009-11-07 Uma P. Vijh , Adolf N. Witt , Karl D. Gordon

The relative abundance of the dust grain types in the interstellar medium (ISM) is directly linked to physical quantities that trace the evolution of galaxies. We study the dust properties of the whole disc of M33 at spatial scales of ~170…

We aim to measure the average dust and molecular gas content of massive star-forming galaxies ($\rm > 3 \times 10^{10}\,M_\odot$) up to z=4 in the COSMOS field to determine if the intense star formation observed at high redshift is induced…

We explore the onset of star formation in the early Universe, exploiting the observations of high-redshift Lyman-break galaxies (LBGs) and Lyman alpha emitters (LAEs), in the framework of the galaxy formation scenario elaborated by Granato…

天体物理学 · 物理学 2010-11-11 J. Mao , A. Lapi , G. L. Granato , G. de Zotti , L. Danese
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