Results 41 to 50 of about 86,492 (269)

The Importance of Lens Galaxy Environments

open access: yes, 2004
While many strong gravitational lens galaxies are suspected to lie in groups or clusters of galaxies, environmental effects in lens models are often unconstrained and sometimes ignored. We show that this creates significant biases in a variety of lensing
Ann I. Zabludoff   +11 more
core   +1 more source

The gaseous environments of radio galaxies [PDF]

open access: yesNew Astronomy Reviews, 2002
X-ray emission traces the gaseous environments of radio sources. The medium must be present for jet confinement, but what are its influence on jet fuelling, dynamics, propagation, and disruption? The observational situation is both complicated and enriched by radio sources being multi-component X-ray emitters, with several possible regions of non ...
openaire   +2 more sources

H i-deficient galaxies in intermediate-density environments [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
Accepted to MNRAS, 17 pages, 10 figures, 7 ...
Denes, H.   +3 more
openaire   +3 more sources

Groups of galaxies: relationship between environment and galaxy properties [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2006
We analyse how the properties of galaxies in groups identified in the Sloan Digital Sky Survey depend on the environment. In particular, we study the relationship between galaxy properties and group mass and group-centric distance. Among the galaxy properties we have considered here, we find that the $g-r$ colour is the most predictive parameter for ...
Martinez, Hector J., Muriel, Hernan
openaire   +2 more sources

Deep Synoptic Array Science: A Massive Elliptical Host Among Two Galaxy-cluster Fast Radio Bursts

open access: yesThe Astrophysical Journal, 2023
The stellar population environments that are associated with fast radio burst (FRB) sources provide important insights for developing their progenitor theories.
Kritti Sharma   +23 more
doaj   +1 more source

Harassment Origin for Kinematic Substructures in Dwarf Elliptical Galaxies? [PDF]

open access: yes, 2005
We have run high resolution N-body models simulating the encounter of a dwarf galaxy with a bright elliptical galaxy. The dwarf absorbs orbital angular momentum and shows counter-rotating features in the external regions of the galaxy.
A. C. González-García   +38 more
core   +3 more sources

Observing the Galaxy Environment of QSOs [PDF]

open access: yes, 1997
2 pages, 1 figure (postscript), Latex (uses lamuphys.sty). To appear in the proceedings of the ESO/IAC Conference on 'Quasar Hosts' held in Puerta de la Cruz, Tenerife, Spain, Sep.
J\\"ager, Klaus   +2 more
openaire   +2 more sources

Occurrence of LINER galaxies within the galaxy group environment [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
Published in MNRAS, 10 pages, 7 ...
Coldwell Lloveras, Georgina Vanesa   +4 more
openaire   +3 more sources

Nature versus Nurture: Revisiting the Environmental Impact on Star Formation Activities of Galaxies

open access: yesThe Astrophysical Journal
We present a systematic study of the environmental impact on star formation activities of galaxies using a mass-complete sample of ∼170k galaxies at z < 4 from the latest COSMOS2020 catalog.
Ke Shi   +3 more
doaj   +1 more source

Measuring Galaxy Environments with Deep Redshift Surveys

open access: yes, 2005
We study the applicability of several galaxy environment measures (n^th-nearest-neighbor distance, counts in an aperture, and Voronoi volume) within deep redshift surveys.
Brian F. Gerke   +6 more
core   +1 more source

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