Results 121 to 130 of about 471,519 (339)

Tidal Interaction of Galaxies

open access: yesThe Astrophysical Journal Supplement Series, 1978
In this paper we investigate the effect of weak tidal interactions among galaxies in clusters. We obtain the Fokker-Planck coefficients for this process by making use of the impulse approximation. We assume that the outer regions of a galaxy are well described by isotropically distributed stellar orbits with small angular momenta.
openaire   +2 more sources

Scale Interactions and Galaxy Evolution [PDF]

open access: yes, 2003
To understand galaxies and their evolution, it is necessary to describe how the different scales interact: how the microscopic physics, such as star formation, or the large scale physics, such as galaxy interactions may modify the galaxy global shapes.
openaire   +3 more sources

Anti‐Pseudomonas Aeruginosa Bacteriophage Loaded Electrospun Fibers for Antibacterial Wound Dressings

open access: yesMacromolecular Rapid Communications, EarlyView.
Multidrug resistant Pseudomonas (P.) aeruginosa is detected in many infected wounds and is challenging to treat with antibiotics. As an alternative, this work incorporates anti‐P. aeruginosa Neko phages into electrospun fibres to explore their potential for treating infected wounds.
Tian Ju   +7 more
wiley   +1 more source

COSMOS-Web: The Role of Galaxy Interactions and Disk Instabilities in Producing Starbursts at z < 4

open access: yesThe Astrophysical Journal
We study of the role of galaxy–galaxy interactions and disk instabilities in producing starburst activity in galaxies out to z = 4. For this, we use a sample of 387 galaxies with robust total star formation rate measurements from Herschel, gas masses ...
Andreas L. Faisst   +53 more
doaj   +1 more source

Study of galaxy morphology and merging time of two interacting galaxies under different initial rotation and orientation configurations [PDF]

open access: yesarXiv, 2020
Using the GADGET-2 N-body code, we make a study of the galaxy morphology and merging time due to two interacting galaxies (for the same types and different sizes and masses, $1:1$ and $1:10$ ratio masses) merging due to gravity interaction. This is done for different initial relative orientation and rotation of these galaxies (modes of interaction) but
arxiv  

Observational evidence for bar formation in disk galaxies via cluster-cluster interaction [PDF]

open access: yes, 2019
Bars are an elongated structure that extends from the centre of galaxies, and about one-third of disk galaxies are known to possess bars. These bars are thought to form either through a physical process inherent in galaxies, or through an external process such as galaxy-galaxy interactions. However, there are other plausible mechanisms of bar formation
arxiv   +1 more source

Galaxy Mergers and the Mass-Metallicity Relation: Evidence for Nuclear Metal Dilution and Flattened Gradients from Numerical Simulations

open access: yes, 2010
Recent results comparing interacting galaxies to the mass-metallicity relation show that their nuclear oxygen abundances are unexpectedly low. We present analysis of N-body/SPH numerical simulations of equal-mass mergers that confirm the hypothesis that ...
Barnes   +25 more
core   +1 more source

Feasibility of Stepwise Technology‐Based Audiometry With Rapid Results (STARR) Protocol in Minnesota Elementary Schools

open access: yesOtolaryngology–Head and Neck Surgery, EarlyView.
Abstract Objective This study aims to understand the utility of a stepwise technology‐based audiometry with rapid results (STARR) school screening protocol. Study Design A prospective cohort study. Setting Six elementary schools in a single school district in Minnesota.
Autefeh Sajjadi   +15 more
wiley   +1 more source

Homochiral Self‐Sorting During Macrocycle Formation and their Chiroptical Properties

open access: yesChemistryOpen, EarlyView.
Imine condensation of C2‐symmetric chiral aldehydes with aliphatic amines results in 2 : 2 macrocycles lacking self‐sorting, whereas aromatic amines yield macrocycles with complete homochiral self‐sorting. These macrocycles exhibit unique chiroptical properties attributed to rigidification compared to the starting aldehydes.
Diptiprava Sahoo, Soumen De
wiley   +1 more source

Living with Neighbors. V. Better-aligned Spiral+Spiral Galaxy Pairs Show Stronger Star Formation

open access: yesThe Astrophysical Journal
Enhanced star formation (SF) with star-forming neighboring galaxies bolsters the hydrodynamical contributions during paired interactions. Although the relative spin orientation between interacting galaxies can influence this effect, it has not been ...
Woong-Bae G. Zee   +3 more
doaj   +1 more source

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