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相关论文: A physically-motivated template set for high-z gal…

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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 report on the stellar content, half-light radii and star formation rates of a sample of 10 known high-redshift ($z\gtrsim 2$) galaxies selected on strong neutral hydrogen (HI) absorption (log(N(HI)/cm$^{-2})>19$) toward background…

Using a semi-analytic galaxy-formation model, we study analogues of 8 recently discovered JWST galaxies at $z>{\sim}12$. We select analogues from a cosmological simulation with a $(311{\rm cMpc})^3$ volume and an effective particle number…

星系天体物理 · 物理学 2023-06-06 Yuxiang Qin , Sreedhar Balu , J. Stuart B. Wyithe

Measuring the physical properties of galaxies such as redshift frequently requires the use of Spectral Energy Distributions (SEDs). SED template sets are, however, often small in number and cover limited portions of photometric color space.…

天体物理仪器与方法 · 物理学 2017-12-13 J. Bryce Kalmbach , Andrew J. Connolly

We present a method to analyze the spectral energy distributions (SEDs) of young stellar objects (YSOs). Our approach is to fit data with pre-computed 2-D radiation transfer models spanning a large region of parameter space. This allows us…

天体物理学 · 物理学 2010-04-06 Thomas P. Robitaille , Barbara A. Whitney , Remy Indebetouw , Kenneth Wood

The increasing number of distant galaxies observed with ALMA by the ALPINE and REBELS surveys and the early release observations of the JWST promise to revolutionize our understanding of cosmic star formation and the assembly of normal,…

星系天体物理 · 物理学 2022-12-19 C. Di Cesare , L. Graziani , R. Schneider , M. Ginolfi , A. Venditti , P. Santini , L. K. Hunt

We present an investigation into the first 500 Myr of galaxy evolution from the Cosmic Evolution Early Release Science (CEERS) survey. CEERS, one of 13 JWST ERS programs, targets galaxy formation from z~0.5 to z>10 using several imaging and…

A method for using the sub-millimeter band to determine photometric redshifts of luminous high-z dusty galaxies is presented. It is based on the observation that local ultra-luminous IR galaxies show an average spectral energy distribution…

天体物理学 · 物理学 2007-05-23 Tommy Wiklind

We provide the basic integrated physical properties of all the galaxies contained in the full CASSIS with available broad-band photometry from UV to 22 $\mu$m. We have collected photometric measurements in 14 wavelengths from available…

星系天体物理 · 物理学 2016-12-21 Marina Vika , Laure Ciesla , Vassilis Charmandaris , Emmanuel M. Xilouris , Vianney Lebouteiller

We present spectral energy distributions (SEDs) for 68 Herschel sources detected at 5-sigma at 250, 350 and 500 mu in the HerMES SWIRE-Lockman field. We explore whether existing models for starbursts, quiescent star-forming galaxies and for…

宇宙学与河外天体物理 · 物理学 2015-05-19 Michael Rowan-Robinson , Herschel-SPIRE HerMES consortium

We present piXedfit, pixelized spectral energy distribution (SED) fitting, a Python package that provides tools for analyzing spatially resolved properties of galaxies using multiband imaging data alone or in combination with integral field…

星系天体物理 · 物理学 2021-05-05 Abdurro'uf , Yen-Ting Lin , Po-Feng Wu , Masayuki Akiyama

We present a proof-of-concept analysis of photometric redshifts with Bayesian priors on physical properties of galaxies. This concept is particularly suited for upcoming/on-going large imaging surveys, in which only several broad-band…

星系天体物理 · 物理学 2015-06-23 Masayuki Tanaka

We have a developed a new method for fitting spectral energy distributions (SEDs) to identify and constrain the physical properties of high-redshift (4 < z < 8) galaxies. Our approach uses an implementation of Bayesian based Markov Chain…

星系天体物理 · 物理学 2015-05-27 N. Pirzkal , B. Rothberg , Kim K. Nilsson , S. Finkelstein , Anton Koekemoer , Sangeeta Malhotra , James Rhoads

We present a detailed stellar population analysis of 11 bright ($H<26.6$) galaxies at $z=9-11$ (three spectroscopically confirmed) to constrain the chemical enrichment and growth of stellar mass of early galaxies. We use the flexible…

We intend to show that it is possible to derive the physical parameters of galaxies from their broad-band spectral energy distribution out to a redshift of 1.2. This method has the potential to yield the physical parameters of all galaxies…

We present a detailed investigation into the abundance and morphology of high redshift quenched galaxies at $3 < z < 7$ using James Webb Space Telescope data in the NEP, CEERS and JADES fields. Within these fields, we identify 90 candidate…

Spectral Energy Distribution (SED) fitting in the far-infrared (FIR) is greatly limited by a dearth of data and an excess of free parameters - from galaxies' dust composition, temperature, mass, orientation, opacity, to heating from AGN.…

宇宙学与河外天体物理 · 物理学 2015-06-05 Caitlin M. Casey