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相关论文: The differential magnification of high-redshift ul…

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A class of extremely luminous high-redshift galaxies has recently been detected in unbiased submillimetre-wave surveys using the Submillimetre Common-User Bolometer Array (SCUBA) camera at the James Clerk Maxwell Telescope. Most of the…

天体物理学 · 物理学 2007-05-23 Andrew W. Blain

The spectral energy distributions (SEDs) of dust-enshrouded galaxies with powerful restframe far-infrared emission have been constrained by a range of ground-based and space-borne surveys. The IRAS catalog provides a reasonably complete…

天体物理学 · 物理学 2009-11-10 Andrew W. Blain , Scott C. Chapman , Ian Smail , Rob Ivison

We present a model to estimate the effect of differential magnification on the SED of high-z ULIRGs. It is found that the ratio of the high temperature component to the low temperature component can vary with up to a factor of ten with…

天体物理学 · 物理学 2007-05-23 K. M. Pontoppidan , T. Wiklind

The spectral energy distributions (SEDs) of dusty high-redshift galaxies are poorly sampled in frequency and spatially unresolved. Their form is crucially important for estimating the large luminosities of these galaxies accurately, for…

天体物理学 · 物理学 2009-11-07 Andrew W. Blain , V. E. Barnard , Scott C. Chapman

A proper analysis of the evolution of sources emitting in the Mid-Infrared is strongly dependent on their broad-band spectral properties (SEDs) at different redshifts and luminosities and on a reliable classification allowing to disentangle…

天体物理学 · 物理学 2007-05-23 C. Gruppioni , F. Pozzi , A. Comastri , C. Vignali , G. Rodighiero , .

We present analysis of spectral energy distributions (SEDs) from mid-infrared through X-ray of a sample of 420 hard X-ray selected, z-band and Spitzer/IRAC detected active galactic nuclei (AGN) and AGN candidates from the GOODS…

Recent efforts on the modeling of the infrared spectral energy distributions (SEDs) of dwarf galaxies are summarised here. The characterisation of the dust properties in these low metallicity environments is just unfolding, as a result of…

天体物理学 · 物理学 2009-11-10 Suzanne C. Madden

We present deep {\it Spitzer} mid-infrared spectroscopy, along with 16, 24, 70, and 850\,$\micron$\ photometry, for 22 galaxies located in the Great Observatories Origins Deep Survey-North (GOODS-N) field. The sample spans a redshift range…

宇宙学与河外天体物理 · 物理学 2010-05-06 E. J. Murphy , R. R. Chary , D. M. Alexander , M. Dickinson , B. Magnelli , G. Morrison , A. Pope , H. I. Teplitz

We numerically investigate how fundamental properties of the spectral energy distribution (SED) of a major gas-rich galaxy merger with dusty starburst are determined by the initial orbital configuration of the merger. We found that an…

天体物理学 · 物理学 2007-05-23 Kenji Bekki , Yasihiro Shioya

The spectral energy distributions (SED) of dusty galaxies at intermediate redshift may look similar to very high redshift galaxies in the optical/near infrared (NIR) domain. This can lead to the contamination of high redshift galaxy…

We investigate models for the power supply and broad-band spectral energy distribution (SED) of hyperluminous IR galaxies, recently discovered at high redshifts, in terms of the emission from an active nucleus embedded in a torus-like dusty…

天体物理学 · 物理学 2009-10-28 Gian Luigi Granato , Luigi Danese , Alberto Franceschini

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 conduct for the first time a theoretical investigation of the mid-infrared spectral energy distribution (SED) produced by dust heated by an active galactic nucleus (AGN) and an extreme starburst. These models employ an integrated…

星系天体物理 · 物理学 2018-05-16 Shobita Satyapal , Nicholas P. Abel , Nathan J. Secrest

We present the results of the analysis of multiwavelength Spectral Energy Distributions (SEDs) of far-infrared galaxies detected in the AKARI Deep Field-South (ADF--S) Survey. The analysis uses a carefully selected sample of 186 sources…

星系天体物理 · 物理学 2013-11-01 K. Malek , A. Pollo , T. T. Takeuchi , E. Giovannoli , V. Buat , D. Burgarella , M. Malkan , A. Kurek

Foreground galaxies that amplify the light from background quasars may also dim that light if the galaxies contain enough dust. Extinction by dust in lenses could hide the large number of lensed systems predicted for a flat universe with a…

天体物理学 · 物理学 2015-06-24 Sangeeta Malhotra , James E. Rhoads , Edwin L. Turner

On behalf of the WISE Science team, we present the discovery of a class of distant dust-enshrouded galaxies with extremely high luminosity. These galaxies are selected to have extreme red colors in the mid-IR using NASA's Wide-field…

Interstellar dust grains are responsible for modifying the spectral energy distribution (SED) of galaxies, both absorbing starlight at UV and optical wavelengths and converting this energy into thermal emission in the infrared. The detailed…

宇宙学与河外天体物理 · 物理学 2015-05-20 Fabio Fontanot , Rachel S. Somerville

[Abridged] We present ISO far-infrared (IR) observations of 21 hard X-ray selected AGN from the HEAO-1 A2 sample. We compare the far-IR to X-ray spectral energy distributions (SEDs) of this sample with various radio and optically selected…

I review the characteristics of high redshift galaxies, with particular attention to the effects of dust obscuration on the observed light. Galaxies at redshift z~1 and at z>2 are discussed separately, as the accessible information for each…

天体物理学 · 物理学 2007-05-23 Daniela Calzetti

The observed properties of high redshift galaxies depend on the underlying foreground distribution of large scale structure, which distorts their intrinsic properties via gravitational lensing. We focus on the regime where the dominant…

宇宙学与河外天体物理 · 物理学 2015-06-30 Anastasia Fialkov , Abraham Loeb
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