Results 31 to 40 of about 9,197,165 (214)

The Evolution of Galaxy Groups and of Galaxies Therein [PDF]

open access: yes, 2007
Properties of groups of galaxies depend sensitively on the algorithm for group selection, and even the most recent catalogs of groups built from redshift-space selection should suffer from projections and infalling galaxies. The cosmo-dynamical evolution of groups from initial Hubble expansion to collapse and virialization leads to a fundamental track (
openaire   +3 more sources

Implications of the Milky Way Travel Velocity for Dynamical Mass Estimates of the Local Group

open access: yesThe Astrophysical Journal, 2022
The total mass of the Local Group (LG) is a fundamental quantity that enables interpreting the orbits of its constituent galaxies and placing the LG in a cosmological context.
Katie Chamberlain   +6 more
doaj   +1 more source

STUDYING GALAXY FORMATION IN LOOSE GALAXY GROUPS [PDF]

open access: yes, 2007
4 pages, To appear in the proceedings of the "Island Universes: Structure and Evolution of Disk Galaxies" conference held in Terschelling, Netherlands, July 2005, ed. R. de Jong (Springer: Dordrecht)
Pisano, D. J.   +5 more
openaire   +2 more sources

Viral Genome Sequencing Tutorial

open access: yes, 2018
<p>Datasets required for the Galaxy Training on Viral Genome Sequencing</p ...
Galaxy Training Network (8220705)   +1 more
core   +1 more source

Galaxy Group Ellipticity Confirms a Younger Cosmos

open access: yesUniverse
We present an analysis of the ellipticities of galaxy groups, derived from the spatial distribution of member galaxies, revealing a notable incongruity between the observed local galaxy groups and their counterparts in the Lambda cold dark matter ...
Yu Rong
doaj   +1 more source

Identification of Compact Groups of Galaxies in IllustrisTNG300

open access: yesThe Astrophysical Journal
We identify compact groups (CGs) of galaxies in an IllustrisTNG300 simulation using a friends-of-friends algorithm. Our approach is designed to be comparable to systematic CG searches based on spectroscopic surveys, while avoiding the conventional ...
Seungwu Yoo, Jubee Sohn
doaj   +1 more source

COMPARISON OF OPTICAL AND X-RAY MASS ESTIMATES OF THE CHANDRA GALAXY CLUSTERS AT Z < 0.1

open access: yesOdessa Astronomical Publications, 2013
We used the optical data taken from SDSS DR7 galaxy and group catalog to determine the optical mass of 37 nearer Chandra galaxy clusters for comparison with the X-ray mass estimates.
Iu. V. Babyk, I. B. Vavilova
doaj   +1 more source

Hot Gas in Groups and Their Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1998
It is clear that there is an important interplay between galaxies and the group environment. At the velocity dispersions (~ 100 km s−1) characteristic of groups, the galaxies interact strongly, leading to triggering of star formation, and galaxy merging.
Trevor J. Ponman, Alexis Finoguenov
openaire   +1 more source

The clustering of galaxies in hierarchical galaxy formation models [PDF]

open access: yes, 2010
Galaxy clustering encodes information about the values of cosmological parameters and also about the physical processes behind galaxy formation and evolution. The GALFORM semi-analytical model is the theoretical approach we used to model galaxy formation.
KIM, HAN,SIK, Kim, Han Sik
core  

Antea Group Archeologie 2019/164

open access: yes, 2020
projectnummer 456639 rapportvolgnummer 2019/164 De aanleiding tot het uitvoeren van dit bureauonderzoek en inventariserend veldonderzoek door middel van boringen is de voorgenomen sanering c.q.
Fens, R. (Antea Group)   +9 more
core   +1 more source

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