Results 121 to 130 of about 88,791 (299)
The Astrophysical Journal, 2023 We present a multiwavelength analysis of the galaxy cluster SPT-CL J0607-4448 (SPT0607), which is one of the most distant clusters discovered by the South Pole Telescope at z = 1.4010 ± 0.0028. The high-redshift cluster shows clear signs of being relaxed
Megan Masterson +11 more
doaj +1 more source
Constraining star formation rates in cool-core brightest cluster galaxies [PDF]
, 2015 We used broad-band imaging data for 10 cool-core brightest cluster galaxies (BCGs) and conducted a Bayesian analysis using stellar population synthesis to determine the likely properties of the constituent stellar populations.
R. Mittal, J. Whelan, F. Combes
semanticscholar +1 more source
Loss of PI3Kδ Activity Drives Autoimmune Colitis by Impairing Extrathymic Treg Differentiation
European Journal of Immunology, Volume 55, Issue 10, October 2025.Mice with inactivated PI3Kδ develop colitis, reminiscent of immune‐related adverse effects observed in human patients treated with PI3Kδ inhibitors. We demonstrate that loss of PI3Kδ activity abrogates the Helios− peripherally induced Treg (pTreg) population in the mouse colon, resulting in inflammation and tissue damage that Helios+ thymic Tregs fail ...
Ee Lyn Lim +4 more
wiley +1 more source
The Astrophysical Journal, 2023 We investigate the formation channels of the intracluster light (ICL) and the brightest cluster galaxy (BCG) in clusters at z = 0. For this, we perform multi-resolution cosmological N -body simulations using the “galaxy replacement technique.” We study ...
Kyungwon Chun +4 more
doaj +1 more source
Evolution of the brightest cluster galaxies: the influence of morphology, stellar mass and environment [PDF]
, 2015 Using a sample of 425 nearby brightest cluster galaxies (BCGs) from von der Linden et al., we study the relationship between their internal properties (stellar masses, structural parameters and morphologies) and their environment.
Dongyao Zhao +2 more
semanticscholar +1 more source
A Chromosome Inversion Creates a Supergene for Sex and Colour in Lake Malawi Cichlids
Molecular Ecology, Volume 34, Issue 20, October 2025.ABSTRACT Cichlid fishes have the highest rates of evolutionary turnover of sex chromosomes among vertebrates. Many large structural polymorphisms in the radiation of cichlids in Lake Malawi are associated with sex chromosomes and may also carry adaptive variation.
Kristen A. Behrens +10 more
wiley +1 more source
The Astrophysical Journal, 2023 The radial acceleration relation (RAR) represents a tight empirical relation between the inferred total and baryonic centripetal accelerations, g _tot = GM _tot (< r )/ r ^2 and g _bar = GM _bar (< r )/ r ^2 , observed in galaxies and galaxy clusters ...
Sut-Ieng Tam +3 more
doaj +1 more source
GLOBULAR CLUSTER SYSTEMS IN BRIGHTEST CLUSTER GALAXIES: A NEAR-UNIVERSAL LUMINOSITY FUNCTION? [PDF]
, 2014 We present the first results from our Hubble Space Telescope brightest cluster galaxy (BCG) survey of seven central supergiant cluster galaxies and their globular cluster (GC) systems.
W. Harris +12 more
semanticscholar +1 more source
Reassessing the Relationship Between Meteor Radio Afterglows and Optical Persistent Trains
Journal of Geophysical Research: Space Physics, Volume 130, Issue 9, September 2025.Abstract Meteor radio afterglows (MRAs) and optical persistent trains (PTs) are two types of long‐lived phenomena which are occasionally observed following the occurrence of a meteor. Both phenomena are thought to be produced by intrinsic emission mechanisms; PTs have been associated with chemiluminescent reactions between meteoric metals and ...
L. E. Cordonnier +5 more
wiley +1 more source
The Astrophysical JournalWe present an algorithm designed to identify galaxy (proto)clusters in wide-area photometric surveys by first selecting their dominant galaxy—i.e., the brightest cluster galaxy (BCG) or protoBCG—through the local stellar mass density traced by massive ...
Marcelo C. Vicentin +3 more
doaj +1 more source