Results 1 to 10 of about 64,703 (265)

Galaxy surface photometry [PDF]

open access: yesOpen 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 ...
Milvang-Jensen Bo, Jørgensen Inger
doaj   +5 more sources

Cosmology with Galaxy Photometry Alone

open access: yesThe Astrophysical Journal Letters
We 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
doaj   +4 more sources

EXTENDED PHOTOMETRY FOR THE DEEP2 GALAXY REDSHIFT SURVEY: A TESTBED FOR PHOTOMETRIC REDSHIFT EXPERIMENTS

open access: yesAstrophysical Journal, Supplement Series, 2013
This paper describes a new catalog that supplements the existing DEEP2 Galaxy Redshift Survey photometric and spectroscopic catalogs with ugriz photometry from two other surveys; the Canada-France-Hawaii Legacy Survey (CFHTLS) and the Sloan Digital Sky ...
Jeffrey A Newman   +2 more
exaly   +3 more sources

Working Group on Galaxy Photometry [PDF]

open access: bronzeTransactions of the International Astronomical Union, 1970
1. A tabular presentation has been adopted and the report does not cover work in the U.S.S.R. During the report period Circular No. 6 (Report on Prague Meeting) and a Technical Supplement, No. 6a, were distributed. Work on standard luminosity profiles for a few well-observed galaxies (NGC3115, 3379, 4486) progressed more slowly than expected, but ...
G. de Vaucouleurs
openaire   +2 more sources

On the Optimization of Broadband Photometry for Galaxy Evolution Studies [PDF]

open access: greenThe Astronomical Journal, 2002
20 pages, 9 postscript figures, 3 tables, accepted for publication in ...
Gil De Paz, Armando, Madore, B. F.
openaire   +5 more sources

The DESI PRObabilistic Value-added Bright Galaxy Survey (PROVABGS) Mock Challenge

open access: yesThe 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
doaj   +1 more source

Improved GALEX UV Photometry for 700,000 SDSS Galaxies

open access: yesThe 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
doaj   +1 more source

PopSED: Population-level Inference for Galaxy Properties from Broadband Photometry with Neural Density Estimation

open access: yesThe 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
doaj   +1 more source

Surface Photometry of Nearby Field Galaxies: The Data [PDF]

open access: yesThe 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

The Farmer: A Reproducible Profile-fitting Photometry Package for Deep Galaxy Surveys

open access: yesThe 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
doaj   +1 more source

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