Results 101 to 110 of about 13,046,567 (395)

A statistical study of the luminosity gap in galaxy groups

, 2010
The luminosity gap between the two brightest members of galaxy groups and clusters is thought to offer a strong test for the models of galaxy formation and evolution.
Ghanbari, Jamshid, Khosroshahi, Habib G., Koohpaee, Ali, Rahmani, Hadi, Tavasoli, Saeed   +4 more
core   +1 more source

First results of the XI Groups Project: Studying an unbiased sample of galaxy groups [PDF]

, 2006
X-ray observations of hot, intergalactic gas in galaxy groups provide a useful means of characterizing the global properties of groups. However, X-ray studies of large group samples have typically involved very shallow X-ray exposures or have been based ...
Miles, Trevor A., Mulchaey, John S., Ponman, Trevor J., Rasmussen, Jesper, Raychaudhury, Somak   +4 more
core   +3 more sources

Galaxy And Mass Assembly: Estimating galaxy group masses via caustic analysis [PDF]

, 2012
We have generated complementary halo mass estimates for all groups in the Galaxy And Mass Assembly Galaxy Group Catalogue (GAMA G3Cv1) using a modified caustic mass estimation algorithm, originally developed by Diaferio & Geller (1997).
M. Alpaslan, A. Robotham, S. Driver, P. Norberg, J. Peacock, I. Baldry, J. Bland-Hawthorn, S. Brough, A. Hopkins, L. Kelvin, J. Liske, J. Loveday, A. Merson, R. Nichol, K. Pimbblet   +14 more
semanticscholar   +1 more source

Galaxy groups in the 2dF Galaxy Redshift Survey: a compactness analysis of groups [PDF]

Monthly Notices of the Royal Astronomical Society, 2003
A comprehensive study on compactness has been carried out on the 2dF Galaxy Group Catalogue constructed by Merch n & Zandivarez. The compactness indexes defined in this work take into account different geometrical constraints in order to explore a wide range of possibilities.
Zandivarez, A., Dominguez, M. J. L., Ragone, C. J., Muriel, H., Martinez, H. J.   +4 more
openaire   +2 more sources

From Sample to Mixed Reality: A Translational 3D MALDI Imaging Platform for Advanced 3D Spatial Omics Analysis of 3D Cell Culture Disease Models

Advanced Science, EarlyView.
A comprehensive technology platform enables high‐fidelity, volumetric MALDI imaging of 3D cell cultures by integrating custom embedding molds, a semi‐automated computational framework for 3D reconstruction, voxel‐instead of pixel‐based biomarker discovery, and immersive mixed reality data exploration.
Stefania Alexandra Iakab, Jonas Cordes, Thomas Enzlein, Florian Keller, Kevin Kastner, Theresa Mulholland, Björn Christian Fröhlich, Lars Gruber, James Lucas Cairns, Stefan Schmidt, Mathias Hafner, Richard Schneider, Johannes Betge, Frank Fischer, Julian Reichwald, Rüdiger Rudolf, Carsten Hopf   +16 more
wiley   +1 more source

A Physically Motivated Framework to Compare Pair Fractions of Isolated Low- and High-mass Galaxies across Cosmic Time

The Astrophysical Journal
Low-mass galaxy pair fractions are understudied, and it is unclear whether low-mass pair fractions evolve in the same way as more massive systems over cosmic time. In the era of JWST, Roman, and Rubin, selecting galaxy pairs in a self-consistent way will
Katie Chamberlain, Gurtina Besla, Ekta Patel, Vicente Rodriguez-Gomez, Paul Torrey, Garreth Martin, Kelsey Johnson, Nitya Kallivayalil, David Patton, Sarah Pearson, George Privon, Sabrina Stierwalt   +11 more
doaj   +1 more source

Dwarf Galaxies in Focus: A Survey of Observational and Theoretical Studies

Galaxies
This paper presents provides a comprehensive survey of dwarf galaxies, which represent the most numerous and diverse systems in the Universe. We discuss their definitions and morphological classifications, emphasizing the unique properties that ...
Komiljon Tillaboev, Ikram Tadjibaev, Kamolidin Mamadaliyev, Dildor Otajonova, Malokhat Atajonova, Bagzodbek Abdullayev   +5 more
doaj   +1 more source

The Local Group on FIRE: dwarf galaxy populations across a suite of hydrodynamic simulations [PDF]

Monthly notices of the Royal Astronomical Society, 2018
We present a new set of high-resolution hydrodynamic cosmological zoom-in simulations that apply the Feedback In Realistic Environments physics to both Local Group (LG)-like and isolated Milky Way (MW)-like volumes (10 host systems in total with a ...
S. Garrison-Kimmel, P. Hopkins, A. Wetzel, J. Bullock, M. Boylan-Kolchin, D. Keres̆, C. Faucher-Giguére, K. El-Badry, A. Lamberts, E. Quataert, R. Sanderson   +10 more
semanticscholar   +1 more source

Galaxy groups in the 2dF Galaxy Redshift Survey: large-scale structure with groups [PDF]

Monthly Notices of the Royal Astronomical Society, 2003
11 pages, 9 figures, resubmitted to MNRAS after ...
Zandivarez, Ariel, Merchan, Manuel E., Padilla, Nelson D.   +2 more
openaire   +2 more sources

Solid Harmonic Wavelet Bispectrum for Image Analysis

Advanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown, Mathilda Avirett‐Mackenzie, Carolin Villforth, Georgios Exarchakis   +3 more
wiley   +1 more source