中文
相关论文

相关论文: The Effect of Dust on Photometric Redshift Measure…

200 篇论文

A new method is developed for estimating photometric redshifts, using realistic template SEDs, extending over four decades in wavelength (i.e from 0.05 $\mu m$ to 1 mm). The SEDs are constructed for four different spectral types of galaxies…

天体物理学 · 物理学 2007-05-23 B. Mobasher , P. Mazzei

Photometric redshifts are estimated on the basis of template scenarios with the help of the code ZPEG, an extension of the galaxy evolution model PEGASE.2 and available on the PEGASE web site. The spectral energy distribution (SED)…

天体物理学 · 物理学 2009-11-07 Damien Le Borgne , Brigitte Rocca-Volmerange

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

Spectral energy distribution (SED) modeling is one of the main methods to estimate galaxy properties, such as photometric redshifts, $z$, and stellar masses, $M_*$, for extragalactic imaging surveys. SEDs are currently modeled as light from…

星系天体物理 · 物理学 2024-10-01 ChangHoon Hahn , Peter Melchior

As a logical next step in improving the radio-to-submm spectral index as a redshift indicator (Carilli & Yun 1999), we have investigated a technique of using the entire radio-to-FIR spectral energy distribution (SED) for deriving…

天体物理学 · 物理学 2009-10-26 Min S. Yun , C. L. Carilli

We describe the construction of a template set of spectral energy distributions (SEDs) for the estimation of photometric redshifts of luminous red galaxies (LRGs) with a Bayesian template fitting method. By examining the color properties of…

宇宙学与河外天体物理 · 物理学 2013-04-24 Natascha Greisel , Stella Seitz , Niv Drory , Ralf Bender , Roberto Saglia , Jan Snigula

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

We seek to improve the accuracy of joint galaxy photometric redshift estimation and spectral energy distribution (SED) fitting. By simulating different sources of uncorrected systematic errors, we demonstrate that if the uncertainties on…

天体物理仪器与方法 · 物理学 2015-06-24 Viviana Acquaviva , Anand Raichoor , Eric Gawiser

Determining the dust properties of high-redshift galaxies from their far-infrared continuum emission is challenging due to limited multi-frequency data. As a result, the dust spectral energy distribution (SED) is often modeled as a…

星系天体物理 · 物理学 2025-05-27 Laura Sommovigo , Hiddo Algera

We present a robust method to estimate the redshift of galaxies using Pan-STARRS1 photometric data. Our method is an adaptation of the one proposed by Beck et al. (2016) for the SDSS Data Release 12. It uses a training set of 2313724…

星系天体物理 · 物理学 2020-10-14 Paula Tarrío , Stefano Zarattini

Photometric redshifts are studied with a template approach using data from HDF-N and -S . The problem of aliasing in photometric redshift estimates is investigated in some detail and found not to be a significant problem if at least four…

天体物理学 · 物理学 2009-11-10 Michael Rowan-Robinson

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

The James Webb Space Telescope (JWST) has enabled the discovery of a significant population of galaxies at z > 10. Our understanding of the astrophysical properties of these galaxies relies on fitting templates developed using models…

天体物理仪器与方法 · 物理学 2026-04-09 Thorbjørn Clausen , Charles L. Steinhardt , Arden Shao , Gaurav Senthil Kumar

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

Traditional photometric redshift methods use only color information about the objects in question to estimate their redshifts. This paper introduces a new method utilizing colors, luminosity, surface brightness, and radial light profile to…

天体物理学 · 物理学 2008-11-26 James J. Wray , James E. Gunn

Some recent literature has claimed there to be an evolution in galaxies' dust temperatures towards warmer (or colder) spectral energy distributions (SEDs) between low and high redshift. These conclusions are driven by both theoretical…

星系天体物理 · 物理学 2022-05-18 Patrick M. Drew , Caitlin M. Casey

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 construct a set of model spectra specifically designed to match the colours of the BOSS CMASS galaxies and to be used with photometric redshift template fitting techniques. As a basis we use a set of spectral energy distributions (SEDs)…

宇宙学与河外天体物理 · 物理学 2015-05-08 N. Greisel , S. Seitz , N. Drory , R. Bender , R. P. Saglia , J. Snigula

Observations of the rest-frame far-infrared (far-IR) emission of galaxies suggest a mild increase of dust temperature $T_{\rm dust}$ with redshift, although constraining $T_{\rm dust}$ in high-redshift systems remains challenging due to…

We report new improved photometric redshifts of 1048 galaxies in the Hubble Deep Field (HDF). A standard chi^2 minimizing method is applied to seven-color UBVIJHK photometry by Fernandez-Soto, Lanzetta, & Yahil (1999). We use 187 template…

天体物理学 · 物理学 2009-10-31 Hisanori Furusawa , Kazuhiro Shimasaku , Mamoru Doi , Sadanori Okamura
‹ 上一页 1 2 3 10 下一页 ›