Results 31 to 40 of about 60,837 (131)

PS1-12sk IS A PECULIAR SUPERNOVA FROM A He-RICH PROGENITOR SYSTEM IN A BRIGHTEST CLUSTER GALAXY ENVIRONMENT [PDF]

, 2013
We report on our discovery and observations of the Pan-STARRS1 supernova (SN) PS1-12sk, a transient with properties that indicate atypical star formation in its host galaxy cluster or pose a challenge to popular progenitor system models for this class of
N. Sanders, A. Soderberg, R. Foley, R. Chornock, D. Milisavljevic, R. Margutti, M. Drout, M. Moe, E. Berger, Warren R. Brown, R. Lunnan, S. Smartt, M. Fraser, R. Kotak, L. Magill, K. Smith, D. Wright, K. Huang, Y. Urata, J. S.Mulchaey, A. Rest, D. Sand, L. Chomiuk, A. Friedman, R. Kirshner, G. H. Marion, J. Tonry, W. Burgett, K. Chambers, K. Hodapp, R. Kudritzki, P. Price   +31 more
semanticscholar   +1 more source

A candidate supermassive binary black hole system in the brightest cluster galaxy of RBS 797 [PDF]

, 2013
Context. The radio source at the center of the cool-core galaxy cluster RBS 797 ( z  = 0.35) is known to exhibit a misalignment of its radio jets and lobes observed at different VLA scales, with the innermost ~kpc-scale jets being almost orthogonal to ...
M. Gitti, M. Giroletti, G. Giovannini, L. Feretti, E. Liuzzo   +4 more
semanticscholar   +1 more source

The XMM Cluster Survey: the interplay between the brightest cluster galaxy and the intracluster medium via AGN feedback [PDF]

, 2012
Using a sample of 123 X-ray clusters and groups drawn from the XMM Cluster Survey first data release, we investigate the interplay between the brightest cluster galaxy (BCG), its black hole and the intracluster/group medium (ICM).
J. Stott, R. Hickox, A. Edge, C. Collins, M. Hilton, C. Harrison, A. Romer, P. Rooney, S. Kay, C. Miller, M. Sahlén, E. Lloyd-Davies, N. Mehrtens, B. Hoyle, A. Liddle, P. T. P. Viana, I. G. McCarthy, J. Schaye, C. Booth   +18 more
semanticscholar   +1 more source

Miscentring in Galaxy Clusters: Dark Matter to Brightest Cluster Galaxy Offsets in 10,000 SDSS Clusters [PDF]

, 2012
We characterise the typical offset between the Dark Matter (DM) projected centre and the Brightest Cluster Galaxy (BCG) in 10,000 SDSS clusters. To place constraints on the centre of DM, we use an automated strong-lensing analysis, mass-modelling ...
A. Zitrin, M. Bartelmann, K. Umetsu, M. Oguri, T. Broadhurst   +4 more
semanticscholar   +1 more source

Blowing cold flows away: the impact of early AGN activity on the formation of a brightest cluster galaxy progenitor [PDF]

, 2012
Supermassive black holes (BH) are powerful sources of energy that are already in place at very early epochs of the Universe (by z=6). Using hydrodynamical simulations of the formation of a massive M_vir=5 10^11 M_sun halo by z=6 (the most massive ...
Y. Dubois, C. Pichon, J. Devriendt, J. Silk, M. Haehnelt, T. Kimm, A. Slyz   +6 more
semanticscholar   +1 more source

Liquid Metal Nanotransformers for Drug‐Resistant Pan‐Cancer Therapy in Patient‐Derived Organoids

Advanced Science, EarlyView.
Pan‐cancer therapies are severely limited in drug‐resistance patients due to genetic mutations and other factors, resulting in poor therapeutic outcomes and constrained clinical benefit. Liquid metal nanotransformers, a new class of shape‐transformable nanomaterials capable of dramatic morphological changes, offer a promising physical strategy to ...
Xiaojie Yuan, Xuelin Wang, Zhongyao Chen, Shuo Wang, Weining Gao, Ziyi Chen, Runyang Li, Cheng Hao, Lei Zhang, Qiongqiong Zhang, Ke Zhang, Mei Yu, Qian Liu, Jingxuan Wang, Huiping Li, Simpkins Fiona, Jing Liu, Qiang Liu, Peng Liu, Yawei Hu   +19 more
wiley   +1 more source

A Circuit of Mechanically Regulated Transcription Factors Balances Regenerative and Fibrotic Memory of Mesenchymal Stromal Cells

Advanced Science, EarlyView.
Producing MSCs on rigid culture substrates induces a scar‐making phenotype, jeapordizing therapeutic success. ‘Tissue‐soft’ surfaces prevent MSC fibrogenesis and preserve regenerative traits. An epigenetic network, driven by HOXA11 and SALL1, maintains ‘soft memory’ by keeping chromatin open in relaxed MSCs, promoting anti‐fibrotic programs.
Fereshteh Sadat Younesi, Andrew E. Miller, Li Diao, Xinying Guo, Natalie Andonian, Elham Karimizadeh, Thomas H. Barker, Boris Hinz   +7 more
wiley   +1 more source

Brightest Cluster Galaxy Profile Shapes [PDF]

, 1996
We model the surface brightness profiles of a sample of 119 Abell Brightest Cluster Galaxies (BCG), finding a generalised deVaucouleurs R^{1/n} law, where n is a free parameter, to be appropriate.
A. Graham, T. Lauer, M. Postman
semanticscholar   +1 more source

Feasibility Study for Application of Digitized Henize Mt. Wilson Michigan Southern Sky Hα$$ \boldsymbol{\alpha} $$ Survey Low‐Dispersive Spectral Plates for Searches for Anomalous and Highly Redshifted Objects

Astronomische Nachrichten, EarlyView.
ABSTRACT The goal of this study is to confirm the feasibility of the use of digitized low dispersive MtWilson Michigan Southern Sky Hα$$ \alpha $$ survey astronomical photographic plates for modern astrophysical research. The detection of highly redshifted objects, such as early galaxies and quasars, is fundamental to understanding the universe's ...
Tauseef Ahmad Zafar, René Hudec, Marta Mara Merono Vidagany, Fehmi Mejri   +3 more
wiley   +1 more source

LoCuSS: the connection between brightest cluster galaxy activity, gas cooling and dynamical disturbance of X‐ray cluster cores [PDF]

, 2009
We study the distribution of projected offsets between the cluster X-ray centroid and the brightest cluster galaxy (BCG) for 65 X-ray-selected clusters from the Local Cluster Substructure Survey, with a median redshift of z = 0.23.
A. Sanderson, A. Edge, Graham P. Smith
semanticscholar   +1 more source