Results 91 to 100 of about 1,030,336 (214)
The Emergence of Brightest Cluster Galaxy in a Protocluster Core at $z=2.24$ [PDF]
, 2023 We report the detection of a pair of massive quiescent galaxies likely in the process of merging at the center of the spectroscopically confirmed, extremely massive protocluster BOSS1244 at $z=2.24\pm0.02$.
Shi, Dongdong +6 more
core +1 more source
Secondary evolution of galaxies investigated by N-body simulations [PDF]
, 2008 In the ΛCDM cosmology, merging is one of the most important physical processes that drives the formation and evolution of galaxies. In the present work, we use N-body techniques to investigate some of currently open issues related to the formation and ...
Coppola, Giuseppina
core +1 more source
Cluster Properties as a Function of Dynamical State in the DESI Legacy × UNIONS Surveys
The Astrophysical JournalWe investigate how the dynamical state of galaxy clusters influences their galaxy populations and mass distributions. Using photometrically selected clusters from the DESI Legacy Imaging Survey crossmatched with the UNIONS galaxy shear catalog, we ...
Syeda Lammim Ahad +12 more
doaj +1 more source
Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1994-2015, August 2026.Abstract Amorphous carbon (αC) is found in various extraterrestrial particles, including those thought to originate from the outer Solar System. αC can form through two main processes involving C‐rich materials: exposure to energetic charged particles and thermal processing.
M. Germanà +10 more
wiley +1 more source
The Astrophysical JournalRecent studies have highlighted the potential of intracluster light (ICL) as a dark matter tracer. Moreover, ICL coevolves with the brightest cluster galaxy (BCG) and the host cluster, making it a valuable tool for understanding cluster dynamics. In this
Jaewon Yoo +6 more
doaj +1 more source
Nanoscale space weathering features in mature lunar soil revealed by TEM and APT
Meteoritics &Planetary Science, Volume 61, Issue 8, Page 2048-2072, August 2026.Abstract Space weathering significantly alters the optical, chemical, and structural properties of lunar regolith at micro‐ and nanoscales; yet detailed nanoscale variability within individual soils remains underexplored. Here we apply transmission electron microscopy (TEM) and atom probe tomography to four mineral grains (olivine, ilmenite, and two ...
Jennika Greer +6 more
wiley +1 more source
EVOLUTIONARY EFFECTS ON BRIGHTEST CLUSTER GALAXY (BCG) DETECTIONS IN THE CFHTLS-DEEP FIELDS
, 2021 Brightest cluster galaxies (BCGs) are the most massive and most luminous galaxies in the universe. These galaxies dominate galaxy clusters and lie at the top of the potential well of clusters.
Alis, Sinan
core
The Astrophysical JournalWe present an algorithm designed to identify galaxy (proto)clusters in wide-area photometric surveys by first selecting their dominant galaxy—i.e., the brightest cluster galaxy (BCG) or protoBCG—through the local stellar mass density traced by massive ...
Marcelo C. Vicentin +3 more
doaj +1 more source
Massive star clusters in the semi-analytical galaxy formation model L-Galaxies 2020
Astronomy & AstrophysicsIt has been established that a direct link exists between the formation history of star cluster populations and their host galaxies. However, our lack of understanding of the assembly of star cluster populations impedes our ability to use them as tracers
Hoyer Nils +9 more
doaj +1 more source
Astronomy & AstrophysicsWe present a physically interpretable framework to quantify dynamical disturbances in galaxy clusters using projected two-dimensional phase-space information.
Kong Chuiyang, Dell’Antonio Ian
doaj +1 more source