Results 51 to 60 of about 758,851 (211)

On the Clustering of Compact Galaxy Pairs in Dark Matter Haloes

open access: yes, 2015
We analyse the clustering of photometrically selected galaxy pairs by using the halo-occupation distribution (HOD) model. We measure the angular two-point auto-correlation function, ω(θ), for galaxies and galaxy pairs in three volume-limited samples and ...
Yiran Wang (795195)   +1 more
core   +1 more source

Further Investigation of the Effect of Galaxy Interactions on Star Formation

open access: yesOpen Astronomy, 2013
From the apparent magnitude-limited the Main galaxy sample of the Sloan Digital Sky Survey Data Release 7, we construct a paired galaxy sample and a control sample without close companions with the projected separations rp < 100 h−1 kpc and relative ...
Deng Xin-Fa, Zhang Fuyang
doaj   +1 more source

The cosmological constant derived via galaxy groups and clusters

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
The common nature of dark matter and dark energy is argued in Gurzadyan (Eur Phys J Plus 134:14, 2019) based on the approach that the cosmological constant $$\varLambda $$ Λ enters the weak-field General Relativity following from Newton theorem on the ...
V. G. Gurzadyan, A. Stepanian
doaj   +1 more source

Investigation on tunnel stability considering pipe‐roof support with transparent soil technology

open access: yesDeep Underground Science and Engineering, EarlyView.
This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia   +4 more
wiley   +1 more source

Illustris-Simulated Major Merger Galaxy Pairs at z=0

open access: yes, 2017
The Illustris project is an online, publicly accessible set of large-scale cosmological simulations. In this work, we focus on identifying major-merger galaxy pairs (mass ratio \u3c2.5) within the simulation; with the goal of comparing them to ...
Jacques, Alice, Shortt, Spencer
core   +1 more source

A Physically Motivated Framework to Compare the Merger Timescales of Isolated Low- and High-mass Galaxy Pairs Across Cosmic Time

open access: yesThe Astrophysical Journal
The merger timescales of isolated low-mass pairs (10 ^8 < M _* < 5 × 10 ^9 M _⊙ ) on cosmologically motivated orbits have not yet been studied in detail, though isolated high-mass pairs (5 × 10 ^9 < M _* < 10 ^11 M _⊙ ) have been studied extensively.
Katie Chamberlain   +4 more
doaj   +1 more source

Validation of a novel instrumented hoof boot with pressure sensors using force plate gait kinetics in horses at walk and trot

open access: yesEquine Veterinary Journal, EarlyView.
Abstract Background Force plates (FP) are considered the gold standard for quantitative equine gait evaluation but are limited to experimental use. An instrumented hoof boot (IHB) with pressure sensors and an inertial measurement unit would allow clinicians to objectively assess kinetic parameters and gait symmetry.
Jasmin Keller   +3 more
wiley   +1 more source

Metallicity gradients and gas flows in galaxy pairs

open access: yes, 2010
We present the first systematic investigation into the metallicity gradients in galaxy close pairs. We determine the metallicity gradients for eight galaxies in close pairs using H II region metallicities obtained with high signalto- noise multi-slit ...
Rupke, D S N   +9 more
core   +1 more source

The clustering of galaxies in hierarchical galaxy formation models [PDF]

open access: yes, 2010
Galaxy clustering encodes information about the values of cosmological parameters and also about the physical processes behind galaxy formation and evolution. The GALFORM semi-analytical model is the theoretical approach we used to model galaxy formation.
KIM, HAN,SIK, Kim, Han Sik
core  

Viral Genome Sequencing Tutorial

open access: yes, 2018
<p>Datasets required for the Galaxy Training on Viral Genome Sequencing</p ...
Galaxy Training Network (8220705)   +1 more
core   +1 more source

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