Results 181 to 190 of about 88,791 (299)

SpitzerObservations of the Brightest Galaxies in X‐Ray‐Luminous Clusters [PDF]

open access: bronze, 2006
Eiichi Egami   +15 more
openalex   +1 more source

Using Neural Networks to Automate the Identification of Brightest Cluster Galaxies in Large Surveys

open access: yesThe Astrophysical Journal
Brightest cluster galaxies (BCGs) lie deep within the largest gravitationally bound structures in existence. Though some cluster finding techniques identify the position of the BCG and use it as the cluster center, other techniques may not automatically ...
Patrick Janulewicz   +2 more
doaj   +1 more source

A distinct radial acceleration relation across the brightest cluster galaxies and galaxy clusters

open access: yesAstronomy & Astrophysics
Recent studies reveal a radial acceleration relation (RAR) in galaxies, which illustrates a tight empirical correlation connecting the observational acceleration and the baryonic acceleration with a characteristic acceleration scale. However, a distinct RAR has been revealed on brightest cluster galaxy (BCG) cluster scales with a seventeen-times-larger
Yong Tian   +4 more
openaire   +2 more sources

JWST Photometry of Globular Cluster Populations in MACS0417.5−1154

open access: yesThe Astrophysical Journal
Deep JWST imaging of the massive galaxy cluster MACS0417.5−1154, at redshift z = 0.443, reveals a huge population of globular clusters (GCs) and ultracompact dwarfs (UCDs) primarily distributed around its single central giant brightest cluster galaxy ...
William E. Harris   +10 more
doaj   +1 more source

87th Annual Meeting of the Meteoritical Society 2025: Abstracts

open access: yes
Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley   +1 more source

Utilizing Voronoi Tessellations to Determine Radial Density Profiles

open access: yesThe Astronomical Journal
We have developed a novel method of determining 2D radial density profiles for astronomical systems of discrete objects using Voronoi tessellations. This Voronoi-based method was tested against the standard annulus-based method on five simulated systems ...
Veronika Dornan, William E. Harris
doaj   +1 more source

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