Results 21 to 30 of about 2,712 (226)

The X-Ray Intracluster Medium [PDF]

Symposium - International Astronomical Union, 1996
Clusters of galaxies are the largest aggregates of matter that have decoupled from the universal expansion and have approximately evolved to a proper dynamical equilibrium configuration. While in the optical they are just observed as dense concentrations of galaxies, they are seen in X-rays as continuously connected entities through the emission of the
openaire   +1 more source

The Sunyaev–Zel'dovich temperature of the intracluster medium [PDF]

Monthly Notices of the Royal Astronomical Society, 2008
This version accepted for publication in MNRAS following minor ...
Kay, Scott T, Powell, Leila C, Liddle, Andrew R, Thomas, Peter A   +3 more
openaire   +3 more sources

THE INTRAGROUP VERSUS THE INTRACLUSTER MEDIUM

The Astrophysical Journal, 2016
ABSTRACT Galaxy groups differ from clusters primarily by way of their lower masses, M ∼ 1014 M ⊙ versus M ∼ 1015 M ⊙. We discuss how mass affects the thermal state of the intracluster or the intragroup medium, specifically as to their entropy levels and radial ...
Cavaliere, A., Fusco Femiano, R., Lapi, Andrea   +2 more
openaire   +3 more sources

The Enrichment of the Intracluster Medium [PDF]

Symposium - International Astronomical Union, 1996
Recent observational evidence for steep dwarf galaxy luminosity functions in several rich clusters has led to speculation that their precursors, via supernovae (SNe)-driven galactic winds, may be the source of the majority of gas and metals inferred from intracluster medium (ICM) x-ray observations (Trentham 1994).
B. K. Gibson, F. Matteucci
openaire   +4 more sources

A multiphase model for the intracluster medium [PDF]

Monthly Notices of the Royal Astronomical Society, 2000
Nine pages, submitted to Monthly Notices of the RAS.
Nagai, Daisuke, Sulkanen, Martin E., Evrard, August E.   +2 more
openaire   +3 more sources

Missing thermal energy of the intracluster medium [PDF]

Monthly Notices of the Royal Astronomical Society, 2007
The Sunyaev-Zel'dovich (SZ) effect is a direct probe of thermal energy content of the Universe, induced in the cosmic microwave background (CMB) sky through scattering of CMB photons off hot electrons in the intracluster medium (ICM). We report a 9-sigma detection of the SZ signal in the CMB maps of Wilkinson Microwave Anisotropy Probe (WMAP) 3yr data,
Niayesh Afshordi, Yen‐Ting Lin, Daisuke Nagai, Andy Sanderson   +3 more
openalex   +4 more sources

Altered Functional Specialization and Interhemispheric Coordination in Rhegmatogenous Retinal Detachment: Associations With Gene Expression, Neurotransmitter Receptor Distribution, and SVM-SHAP Classification: A Multimodal Neuroimaging-Transcriptomics Study Integrating Functional Metrics and Interpretable Machine Learning. [PDF]

CNS Neurosci Ther
Autonomy Index (AI) and Connective Flexibility of Homotopic voxels (CFH) were derived from resting‐state fMRI data following standard preprocessing. These functional metrics were computed based on the AAL90 atlas to characterize intrinsic activity and interhemispheric coordination patterns in RRD patients.
Ji Y, Wang YY, Wu XR.
europepmc   +2 more sources

Intracluster Stars and the Chemical Enrichment of the Intracluster Medium

The Astrophysical Journal, 2004
5 pages, accepted for publication by ApJ Letters. Changed title to follow ApJL convention, added references, and incorporated referee's comments.
Zaritsky, Dennis, Gonzalez, Anthony H., Zabludoff, Ann I.   +2 more
openaire   +2 more sources

Enrichment of the Hot Intracluster Medium: Observations [PDF]

Space Science Reviews, 2018
Four decades ago, the firm detection of an Fe-K emission feature in the X-ray spectrum of the Perseus cluster revealed the presence of iron in its hot intracluster medium (ICM). With more advanced missions successfully launched over the last 20 years, this discovery has been extended to many other metals and to the hot atmospheres of many other galaxy ...
Mernier, F., Biffi, V., Yamaguchi, H., Medvedev, P., Simionescu, A., Ettori, S., Werner, N., Kaastra, J.S., Plaa, J. de, Gu, L.   +9 more
openaire   +4 more sources

Novel Sulfonium Reagents for the Modular Synthesis of Spiro[2.3]Hexanes and Heteroatom‐Containing Analogues: Synthesis, Application, and Evaluation as Bioisosteres

Angewandte Chemie, Volume 138, Issue 5, 28 January 2026.
Strained spirocyclic spiro[2.3]hexane and its heteroatom‐containing derivatives, including previously underrepresented 5‐oxa‐1‐azaspiro[2.3]hexanes and 1,5‐diazaspiro[2.3]hexanes, were synthesized via a modular approach of insertion of cyclobutane‐, oxetane‐, and azetidine‐containing sulfonium reagents into alkenes, carbonyls and imines.
Philipp Natho, Annarita Vicenti, Fabrizio Mastrolorito, Francesca De Franco, Lee Walsh‐Benn, Marco Colella, Ernesto Mesto, Emanuela Schingaro, Orazio Nicolotti, Antimo Gioiello, Renzo Luisi   +10 more
wiley   +2 more sources