Results 1 to 10 of about 62,204 (222)
Galaxy surface photometry [PDF]
Open Astronomy, 1999 We describe galaxy surface photometry based on fitting ellipses to the isophotes of the galaxies. Example galaxies with different isophotal shapes are used to illustrate the process, including how the deviations from elliptical isophotes are quantified using Fourier expansions.
Milvang-Jensen Bo, Jørgensen Inger
doaj +5 more sources
Cosmology with Galaxy Photometry Alone
The Astrophysical Journal LettersWe present the first cosmological constraints using only the observed photometry of galaxies. Villaescusa-Navarro et al. recently demonstrated that the internal physical properties of a single simulated galaxy contain a significant amount of cosmological
ChangHoon Hahn +3 more
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The DESI PRObabilistic Value-added Bright Galaxy Survey (PROVABGS) Mock Challenge
The Astrophysical Journal, 2023 The PRObabilistic Value-added Bright Galaxy Survey (PROVABGS) catalog will provide measurements of galaxy properties, such as stellar mass ( M _* ), star formation rate (SFR), stellar metallicity ( Z ), and stellar age ( t _age ), for >10 million ...
ChangHoon Hahn +18 more
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Improved GALEX UV Photometry for 700,000 SDSS Galaxies
The Astrophysical Journal Supplement Series, 2023 The Galaxy Evolution Explorer (GALEX) satellite performed the first and only large-area UV survey, which in tandem with the Sloan Digital Sky Survey (SDSS) has facilitated modeling of the spectral energy distributions of low-redshift galaxies and the ...
Chandler Osborne +4 more
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The Astronomical Journal, 2023 We present PopSED , a framework for the population-level inference of galaxy properties from photometric data. Unlike the traditional approach of first analyzing individual galaxies and then combining the results to determine the physical properties of ...
Jiaxuan Li +3 more
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Bound star clusters observed in a lensed galaxy 460 Myr after the Big Bang [PDF]
NatureAngela Adamo, Eros Vanzella, Jose Diego
exaly +2 more sources
The Farmer: A Reproducible Profile-fitting Photometry Package for Deep Galaxy Surveys
The Astrophysical Journal Supplement Series, 2023 While space-borne optical and near-infrared facilities have succeeded in delivering a precise and spatially resolved picture of our Universe, their small survey area is known to underrepresent the true diversity of galaxy populations.
J. R. Weaver +19 more
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Surface Photometry of Nearby Field Galaxies: The Data [PDF]
The Astrophysical Journal Supplement Series, 2000 We have obtained integrated spectra and multi-filter photometry for a repre- sentative sample of ~200 nearby galaxies. These galaxies span the entire Hubble sequence in morphological type, as well as a wide range of luminosities (M_B = -14 to -22) and colors (B-R=0.4 to 1.8).
Jansen, RA +3 more
openaire +3 more sources
A Southern Photometric Quasar Catalog from the Dark Energy Survey Data Release 2
The Astrophysical Journal Supplement Series, 2022 We present a catalog of 1.4 million photometrically selected quasar candidates in the southern hemisphere over the ∼5000 deg ^2 Dark Energy Survey (DES) wide survey area. We combine optical photometry from the DES second data release (DR2) with available
Qian Yang, Yue Shen
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Study photometric properties of spiral galaxy NGC 4448 using CCD camera with multiband filters
Iraqi Journal of Physics, 2018 The goal of our study is to perform detailed multiband surface photometry of the spiral galaxy NGC 4448 and its brightest star-forming regions. The structure and composition of the stellar population in the surface brightness galaxy NGC 4448 was studied
Sinan H. Ali
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