Results 51 to 60 of about 53,517 (330)
Gravitational waves and stalled satellites from massive galaxy mergers at z <= 1 [PDF]
, 2013 We present a model for merger-driven evolution of the mass function for massive galaxies and their central supermassive black holes at late times. We discuss the current observational evidence in favor of merger-driven massive galaxy evolution during ...
McWilliams, Sean T. +2 more
core +3 more sources
Formation of Globular Clusters in Galaxy Mergers [PDF]
Highlights of Astronomy, 2005 AbstractOur numerical simulations first demonstrate that the pressure of ISM in a major merger becomes so high (> 105 kB K cm-3) that GMCs in the merger can collapse to form globular clusters (GCs) within a few Myr. The star formation efficiency within a GMC in galaxy mergers can rise up from a few percent to ~ 80 percent, depending on the shapes ...
Bekki, Kenji +3 more
openaire +2 more sources
A Degradable Bioinspired Flier with Aerogel‐Based Colorimetric Sensors for Environmental Monitoring
Advanced Science, EarlyView.Biodegradable fliers are developed inspired by Tipuana tipu samaras, integrating cellulose nanocrystal aerogel (CNCa) sensors loaded with natural dyes for pH and ammonia detection. The lightweight, degradable fliers mimic natural morphology and aerodynamics, offering an eco‐friendly, scalable solution for in situ environmental monitoring after passive ...
Gianpaolo Gallo +4 more
wiley +1 more source
The Astrophysical JournalGalaxy merger timescales are crucial for understanding and modeling galaxy formation in our hierarchically structured Universe. However, previous studies have reported widely varying dependencies of merger timescales on initial orbital parameters and ...
Kun Xu, Y. P. Jing
doaj +1 more source
Spectral Index of the Filaments in the Abell 523 Radio Halo
Galaxies, 2021 The galaxy cluster Abell 523 hosts a radio halo characterized by the presence of two filaments transversely located with respect to the cluster merger axis.
Valentina Vacca +7 more
doaj +1 more source
Simulations of Galaxy Mergers [PDF]
Symposium - International Astronomical Union, 1983 The last few years have seen a considerable amount of effort devoted to the problem of simulating the coalescence of galaxies. After a discussion of the merits and limitations of the N-body techniques that have been used, I summarise the insight this research gives into the mechanisms driving strong interactions in galaxy collisions and into the ...
openaire +1 more source
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.
Bird, C. M., Davis, D. S., Beers, T. C.
openaire +2 more sources
Radialization of Satellite Orbits in Galaxy Mergers
The Astrophysical Journal, 2022 Abstract We consider the orbital evolution of satellites in galaxy mergers, focusing on the evolution of eccentricity. Using a large suite of N-body simulations, we study the phenomenon of satellite orbital radialization—a profound increase in the eccentricity of its orbit as it decays under dynamical friction.
Eugene Vasiliev +2 more
openaire +2 more sources
Edible Pneumatic Battery for Sustained and Repeated Robot Actuation
Advanced Science, EarlyView.This work presents an edible energy source and valve system to power soft, pneumatically driven edible robots. A chemical reaction between sodium bicarbonate and citric acid generates carbon dioxide gas, and a pressure‐triggered edible valve enables self‐repetitive motion of the edible actuator.
Bokeon Kwak +5 more
wiley +1 more source
Handy Relation between Binary Black Hole Merger Times and Host Galaxy Properties
The Astrophysical Journal LettersOver the past 15 yr, the evidence has clearly demonstrated that massive black hole (MBH) binary merger timescales depend strongly on the structural and kinematic properties of their host galaxy.
Kelly Holley-Bockelmann +8 more
doaj +1 more source