Results 81 to 90 of about 327,275 (314)
Subcluster mergers and galaxy infall in A2151 [PDF]
The Astronomical Journal, 1995 We have obtained a 12.5 ksec image of the Hercules Cluster, A2151, with the {\it ROSAT} PSPC. Comparison of the optical and X-ray data suggest the presence of at least three distinct subclusters in A2151. The brightest X-ray emission coincides with the highest-density peak in the galaxy distribution, and is bimodal.
Christina M. Bird +2 more
openaire +4 more sources
Scintillation Response of 0D Cs3Cu2I5 Thin Layers to Light‐ and Heavy‐Ion Irradiation
Advanced Photonics Research, Volume 6, Issue 6, June 2025.Driven by increasing interest in uncovering the remarkable photoluminescence quantum yield of Cs3Cu2I5, polycrystalline thin layers are synthesized to investigate its radioluminescence response to energetic ions. Its spectroscopic capability is assessed in a wide range of ion mass and internal excitation processes are explored.
Mátyás Hunyadi +6 more
wiley +1 more source
Open Astronomy, 2011 A quantitative study of the clustering properties of the cosmic web as a function of absolute magnitude and color is presented using the SDSS Data Release 7 galaxy survey. Mark correlations are included in the analysis.
Müller Volker +2 more
doaj +1 more source
Deep MOS Spectroscopy of NGC 1316 Globular Clusters
Galaxies, 2017 The giant elliptical galaxy NGC 1316 is the brightest galaxy in the Fornax cluster, and displays a number of morphological features that might be interpreted as an intermediate age merger remanent (∼3 Gyr).
Leandro A. Sesto +3 more
doaj +1 more source
THE MAJOR AND MINOR GALAXY MERGER RATES AT z < 1.5 [PDF]
, 2011 Calculating the galaxy merger rate requires both a census of galaxies identified as merger candidates and a cosmologically averaged “observability” timescale 〈Tobs(z)〉 for identifying galaxy mergers. While many have counted galaxy mergers using a variety
J. Lotz +6 more
semanticscholar +1 more source
Advanced Science, EarlyView.This study identifies a key signaling pathway involving the environmental sensor AhR and antimicrobial peptides, such as BD‐1, in the regulation of intestinal homeostasis. It highlights the role of BD‐1 in regulating gut microbiota and the intestinal immune response.
Manikandan Palrasu +16 more
wiley +1 more source
Numerical hydrodynamic simulations based on semi-analytic galaxy merger trees: method and Milky Way-like galaxies [PDF]
, 2012 We present a new approach to study galaxy evolution in a cosmological context. We combine cosmological merger trees and semi-analytic models of galaxy formation to provide the initial conditions for multi-merger hydrodynamic simulations.
B. Moster, A. Macciò, R. Somerville
semanticscholar +1 more source
Genomic Variation Underpins Genetic Divergence and Differing Salt Resilience in Sesbania bispinosa
Advanced Science, EarlyView.Sesbania, a leguminous halophyte, thrives in saline soils. Comparative genomics reveals key genomic variations—particularly chromosomal inversions—are identified as contributors to population differentiation and salt resilience. These findings advance the understanding of genomic variation driving evolution and phenotypic differentiation and offer ...
Gai Huang +13 more
wiley +1 more source
Observing Galaxy Mergers at the Epoch of Reionization [PDF]
The Astrophysical Journal, 2018 Abstract The galaxies with photometric redshifts observed in a close angular proximity might be either projection coincidences, strongly lensed images of the same galaxy, or separate galaxies that are in a stage of merging. We search for the groups of galaxies in the Hubble Ultra Deep Field (HUDF09) in z ∼ 7 and z ∼ 8 drop-out samples ...
Evgenii A. Chaikin +2 more
openaire +2 more sources
The Astrophysical Journal, 2022 A dissociative merger is formed by the interplay of ram pressure and gravitational forces, which can lead to a spatial displacement of the dark matter and baryonic components of the recently collided subclusters. CIZA J0107.7+5408 is a nearby ( z = 0.105)
Kyle Finner +8 more
doaj +1 more source