Results 1 to 10 of about 12,543 (166)

Some Properties of Galaxy Structures [PDF]

open access: yesOpen Astronomy, 2011
We analysed some properties of galaxies structures based on the PF catalog of galaxy structures (Panko & Flin 2006) and the Tully NBG catalog (Tully 1988).
Flin Piotr   +4 more
doaj   +3 more sources

Scaling Properties of Galaxy Groups

open access: yesUniverse, 2021
Galaxy groups and poor clusters are more common than rich clusters, and host the largest fraction of matter content in the Universe. Hence, their studies are key to understand the gravitational and thermal evolution of the bulk of the cosmic matter ...
Lorenzo Lovisari   +3 more
doaj   +3 more sources

Cosmology with One Galaxy: Autoencoding the Galaxy Properties Manifold

open access: yesThe Astrophysical Journal
Cosmological simulations like CAMELS and IllustrisTNG characterize hundreds of thousands of galaxies using various internal properties. Previous studies have demonstrated that machine learning can be used to infer the cosmological parameter Ω _m from the
Amanda Lue   +4 more
doaj   +3 more sources

Galaxy properties in clusters [PDF]

open access: yesAstronomy & Astrophysics, 2014
Accepted for publication in Astronomy & Astrophysics (A&A)
Muriel, Hernan, Coenda, Valeria
openaire   +3 more sources

The properties of galaxies in voids [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2006
We present a comparison of the properties of galaxies in the most underdense regions of the Universe, where the galaxy number density is less than 10% of the mean density, with galaxies from more typical regions. We have compiled a sample of galaxies in 46 large nearby voids that were identified using the Sloan Digital Sky Survey DR4, which provides ...
Patiri, Santiago G.   +4 more
openaire   +2 more sources

Galaxy–galaxy lensing estimators and their covariance properties [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
18 pages. Summary in figure 7 and table 1.
Sukhdeep Singh   +4 more
openaire   +2 more sources

Characterizing the Conditional Galaxy Property Distribution Using Gaussian Mixture Models

open access: yesThe Astrophysical Journal, 2023
Line-intensity mapping (LIM) is a promising technique to constrain the global distribution of galaxy properties. To combine LIM experiments probing different tracers with traditional galaxy surveys and fully exploit the scientific potential of these ...
Yucheng Zhang   +7 more
doaj   +1 more source

The Andromeda Galaxy and Its Star Formation History

open access: yesUniverse, 2023
The state of knowledge of the properties of the Andromeda Galaxy (also known as M31) is reviewed. The spatial structure of the Andromeda Galaxy, its main source populations, and the properties of its gas and dust are discussed.
Denis Leahy
doaj   +1 more source

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

Photometric Properties of Clusters of Galaxies [PDF]

open access: yesThe Astrophysical Journal Supplement Series, 1996
We report the first results of a long term program aimed at investigating the photometric properties of the cores of Abell and X-ray selected (EMSS, \cite{emss}) clusters of galaxies. We observed 77 clusters of galaxies in the redshift range $0.05\leq z \leq 0.25$ in the Gunn $g$, $r$ and $i$ filters: in this paper we present the data on 59 clusters ...
Garilli, Bianca   +4 more
openaire   +2 more sources

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