Results 191 to 200 of about 89,392 (297)

Line Emission in the Brightest Cluster Galaxies of the NOAO Fundamental Plane and Sloan Digital Sky Surveys

open access: green, 2007
Louise O. V. Edwards   +3 more
openalex   +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

The z ∼ 1.03 Merging Cluster SPT-CL J0356–5337: New Strong Lensing Analysis with HST and MUSE

open access: yesThe Astrophysical Journal
We present a strong lensing analysis and reconstruct the mass distribution of SPT-CL J0356−5337, a galaxy cluster at redshift z = 1.034. Our model supersedes previous models by making use of new multiband Hubble Space Telescope data and Multi-Unit ...
Grace Smith   +10 more
doaj   +1 more source

Brightest cluster galaxies trace weak lensing mass bias and halo triaxiality in the three hundred project

open access: green, 2022
Ricardo Herbonnet   +8 more
openalex   +2 more sources

A High-Caliber View of the Bullet Cluster through JWST Strong and Weak Lensing Analyses

open access: yesThe Astrophysical Journal Letters
The Bullet Cluster (1E 0657-56) is a key astrophysical laboratory for studying dark matter, galaxy cluster mergers, and shock propagation in extreme environments.
Sangjun Cha   +7 more
doaj   +1 more source

Augmenting astrophysical scaling relations with machine learning: Application to reducing the Sunyaev-Zeldovich flux-mass scatter. [PDF]

open access: yesProc Natl Acad Sci U S A, 2023
Wadekar D   +9 more
europepmc   +1 more source

A trail of dark-matter-free galaxies from a bullet-dwarf collision. [PDF]

open access: yesNature, 2022
van Dokkum P   +10 more
europepmc   +1 more source

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