Results 71 to 80 of about 54,114 (300)

Spectral Index of the Filaments in the Abell 523 Radio Halo

open access: yesGalaxies, 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

Close Pairs as Proxies for Galaxy Cluster Mergers

open access: yes, 2008
Galaxy cluster merger statistics are an important component in understanding the formation of large-scale structure. Unfortunately, it is difficult to study merger properties and evolution directly because the identification of cluster mergers in ...
A. E. Schulz   +10 more
core   +1 more source

Gravitational waves and stalled satellites from massive galaxy mergers at z <= 1 [PDF]

open access: yes, 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

Substituent‐Based Modulation of Self‐Assembly and Immunogenicity of Amphipathic Peptides

open access: yesAdvanced Science, EarlyView.
This study systematically investigates how positional and subtle changes, such as substituents on the phenyl ring attached to short amphipathic peptides, influence their self‐assembly, fibril morphology, and immunogenic responses. ABSTRACT Self‐assembled peptide‐based biomaterials provide versatile platforms for biomedical uses, featuring customizable ...
Anirban Das   +13 more
wiley   +1 more source

Gas-Rich Companions of Isolated Galaxies [PDF]

open access: yes, 1999
We have used the VLA to search for gaseous remnants of the galaxy formation process around six extremely isolated galaxies. We found two distinct HI clouds around each of two galaxies in our sample (UGC 9762 & UGC 11124).
Byrd G. G.   +6 more
core   +4 more sources

Multitarget Recognition of Flower Images Based on Lightweight Deep Neural Network and Transfer Learning

open access: yesAdvanced Intelligent Systems, EarlyView.
This article proposes a lightweight YOLOv4‐based detection model using MobileNetV3 or CSPDarknet53_tiny, achieving 30+ FPS and higher mAP. It also presents a ShuffleNet‐based classification model with transfer learning and GAN‐augmented images, improving generalization and accuracy.
Qingyang Liu, Yanrong Hu, Hongjiu Liu
wiley   +1 more source

Event Rate of Fast Radio Bursts from Binary Neutron Star Mergers

open access: yesThe Astrophysical Journal, 2023
It is proposed that a one-off fast radio burst (FRB) with periodic structure may be produced during the inspiral phase of a binary neutron star (BNS) merger. In this paper, we study the event rate of such kind of FRB.
Zhi-Lin Chen   +3 more
doaj   +1 more source

Creating lenticular galaxies with mergers [PDF]

open access: yesProceedings of the International Astronomical Union, 2016
AbstractLenticular galaxies (S0s) represent the majority of early-type galaxies in the local Universe, but their formation channels are still poorly understood. While galaxy mergers are obvious pathways to suppress star formation and increase bulge sizes, the marked parallelism between spiral and lenticular galaxies (e.g.
Querejeta, Miguel   +10 more
openaire   +2 more sources

The THESEUS Space Mission and the Infrared Telescope Calibration Unit

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT The Transient High‐Energy Sky and Early Universe Surveyor (THESEUS) is an ESA M7 mission concept currently in Phase A, designed to exploit gamma‐ray bursts to probe the early Universe while advancing multi‐messenger and time‐domain astrophysics. To achieve its ambitious goals, THESEUS will combine wide‐band x‐ray and gamma‐ray monitors with an
András Péter Joó   +9 more
wiley   +1 more source

Discovery of a Double-core Dwarf Galaxy in a Major Wet Merger: MCG+08-16-005

open access: yesThe Astronomical Journal
I present the discovery of a dwarf galaxy with double cores, MCG+08-16-005, observed by an Integral Field Unit. Based on photometric and spatially resolved spectroscopic analyses, the galaxy is suggested as an ongoing dwarf-dwarf merger. MCG+08-16-005 is
Youngdae Lee
doaj   +1 more source

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