Results 161 to 170 of about 2,213,777 (304)

A New Algorithm for the Detection of Inter-cluster Galaxy Filaments using Galaxy Orientation Alignments

open access: yes, 2005
We present a new algorithm to detect inter-cluster galaxy filaments based upon the assumption that the orientations of constituent galaxies along such filaments are non-isotropic.
Arias-Castro   +84 more
core   +2 more sources

Unveiling the three-dimensional structure of galaxy clusters: resolving the discrepancy between X-ray and lensing masses

open access: yes, 2010
[Abridged] We present the first determination of the intrinsic three-dimensional shapes and the physical parameters of both dark matter (DM) and intra-cluster medium (ICM) in a triaxial galaxy cluster.
Andersson   +42 more
core   +3 more sources

Measurement and calibration of non-linear shear terms in galaxy cluster fields

open access: yesFrontiers in Astronomy and Space Sciences
IntroductionGalaxy cluster lensing is a powerful tool for measuring the mass of galaxy clusters, but accurate shear measurement and calibration are critical to obtaining reliable results.
Binyang Liu   +4 more
doaj   +1 more source

The evolution of the colour-magnitude relation and of the star formation activity in galaxy clusters since z~0.8

open access: yes, 2008
We present recent results on the evolution of the colour-magnitude relation and of the star formation activity in galaxy clusters since z~0.8. Results are based on the ESO Distant Cluster Survey (EDisCS) - an ESO large programme aimed at the study of ...
De Lucia, Gabriella   +1 more
core  

Has the Palomar 14 Globular Cluster Been Captured by the Milky Way?

open access: yesThe Astrophysical Journal
We examine a new scenario to model the outer halo globular cluster (GC) Palomar 14 (Pal 14) over its lifetime by performing a comprehensive set of direct N -body calculations.
Akram Hasani Zonoozi   +3 more
doaj   +1 more source

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