Results 121 to 130 of about 59,378 (245)

Major Mergers Mean Major Offset: Drivers of Intrinsic Scatter in the MGCS–Mh Scaling Relation for Massive Elliptical Galaxies

open access: yesThe Astrophysical Journal
In this work, we determine the total globular cluster (GC) counts and globular cluster system (GCS) total mass estimates for 27 extremely massive elliptical galaxies.
Veronika Dornan, William E. Harris
doaj   +1 more source

The Manhattan Suite: Accelerated Galaxy Evolution in the Early Universe

open access: yesThe Astrophysical Journal
Observational advances have allowed the detection of galaxies, protoclusters, and galaxy clusters at higher and higher redshifts, opening a new view into extreme galaxy evolution.
Douglas Rennehan
doaj   +1 more source

Alignment Effects of Brightest Cluster Galaxies [PDF]

open access: bronze, 1988
D. G. Lambas   +2 more
openalex   +1 more source

Star Formation, Nebulae, and Active Galactic Nuclei in CLASH Brightest Cluster Galaxies. I. Dependence on Core Entropy of Intracluster Medium

open access: yesThe Astrophysical Journal
We set the stage for reassessing how star formation, emission-line nebulae, and active galactic nuclei (AGNs) in brightest cluster galaxies (BCGs) depend on the thermodynamics of the intracluster medium (ICM).
Arsen Levitskiy   +4 more
doaj   +1 more source

Spectroscopic and X-ray Modeling of the Strong Lensing Galaxy Cluster MACS J0138.0-2155

open access: yesThe Open Journal of Astrophysics
We model the total mass and galactic substructure in the strong lensing galaxy cluster MACS J0138.0-2155 using a combination of Chandra X-ray data, Multi-Unit Spectroscopic Explorer (MUSE) spectroscopy, and Hubble Space Telescope imaging.
Abigail Flowers   +4 more
doaj   +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

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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