Results 91 to 100 of about 97,868 (355)

Galaxy formation in the Planck cosmology – I. Matching the observed evolution of star formation rates, colours and stellar masses [PDF]

, 2014
We have updated the Munich galaxy formation model to the Planck first-year cosmology, while modifying the treatment of baryonic processes to reproduce recent data on the abundance and passive fractions of galaxies from z = 3 down to z = 0. Matching these
B. Henriques, S. White, P. Thomas, R. Angulo, Q. Guo, G. Lemson, V. Springel, R. Overzier   +7 more
semanticscholar   +1 more source

Stellar Mass—Halo Mass Relation and Star Formation Efficiency in High-Mass Halos [PDF]

Astronomy letters, 2014
We study relation between stellar mass and halo mass for high-mass halos using a sample of galaxy clusters with accurate measurements of stellar masses from optical and ifrared data and total masses from X-ray observations.
A. Kravtsov, A. Vikhlinin, Alexander Meshscheryakov   +2 more
semanticscholar   +1 more source

The cosmic assembly of stellar haloes in massive Early-Type Galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2017
Using the exquisite depth of the Hubble Ultra Deep Field (HUDF12 programme) dataset, we explore the ongoing assembly of the outermost regions of the most massive galaxies ($\rm M_{\rm stellar}\geq$ 5$\times$10$^{10}$ M$_{\odot}$) at $z \leq$ 1. The outskirts of massive objects, particularly Early-Types Galaxies (ETGs), are expected to suffer a dramatic
Buitrago, Fernando, Trujillo, Ignacio, Curtis-Lake, Emma, Montes, Mireia, Cooper, Andrew P., Bruce, Victoria A., Pérez-González, Pablo G., Cirasuolo, Michele   +7 more
openaire   +5 more sources

Facile Bottom‐Up Assembly of Photonic Micropatterns via Surface‐Guided Colloidal Crystallization

Advanced Materials, EarlyView.
High‐resolution photonic micropatterns with vivid structural colors are fabricated through bottom‐up assembly, guided by surface‐dependent regioselective heterogeneous nucleation and crystal growth of colloidal particles. Full‐spectrum color tunability is achieved by controlling particle size and interparticle attraction, while in situ color mixing is ...
Yongseok Jung, Sehee Yang, Sanghyuk Park, Shin‐Hyun Kim   +3 more
wiley   +1 more source

Analysis of Galaxies at the Extremes: Failed Galaxy Progenitors in the MAGNETICUM Simulations

The Open Journal of Astrophysics
There is increasing observational evidence for a “failed galaxy” formation pathway for ultra-diffuse galaxies (UDGs) at low redshift however they currently lack simulated counterparts.
Jonah S. Gannon, Lucas C. Kimmig, Duncan A. Forbes, Jean P. Brodie, Lucas M. Valenzuela, Rhea-Silvia Remus, Joel L. Pfeffer, Klaus Dolag   +7 more
doaj   +1 more source

CONNECTING DARK MATTER HALOS WITH THE GALAXY CENTER AND THE SUPERMASSIVE BLACK HOLE [PDF]

, 2015
Observational studies of nearby galaxies have demonstrated correlations between the mass of the central supermassive black holes (BHs) and properties of the host galaxies, notably the stellar bulge mass or central stellar velocity dispersion.
Á. Bogdán, A. Goulding
semanticscholar   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Reconciling observed and simulated stellar halo masses [PDF]

, 2018
We use cosmological hydrodynamical simulations of Milky-Way-mass galaxies from the FIRE project to evaluate various strategies for estimating the mass of a galaxy's stellar halo from deep, integrated-light images.
Chan, Tsang Keung, Escala, Ivanna, Faucher-Giguère, Claude-André, Garrison-Kimmel, Shea, Hopkins, Philip F., Kereš, Dušan, Ma, Xiangcheng, Sanderson, Robyn E., Wetzel, Andrew   +8 more
core   +5 more sources

Dark Matter Substructure within Galactic Halos [PDF]

, 1999
We use numerical simulations to examine the substructure within galactic and cluster mass halos that form within a hierarchical universe. Clusters are easily reproduced with a steep mass spectrum of thousands of substructure clumps that closely matches ...
B. Moore, S. Ghigna, F. Governato, G. Lake, T. Quinn, J. Stadel, P. Tozzi   +6 more
semanticscholar   +1 more source

A ‘Universal’ Density Profile for the Outer Stellar Halos of Galaxies [PDF]

Proceedings of the International Astronomical Union, 2016
AbstractThe outer stellar halos of galaxies contain vital information about the formation history of galaxies, since the relaxation timescales in the outskirts are long enough to keep the memory, while the information about individual formation events in the central parts has long been lost due to mixing, star formation and relaxation.
Remus, R., Burkert, A., Dolag, K.
openaire   +4 more sources