Results 141 to 150 of about 2,662,849 (293)

Forecasting Constraints from Surface Brightness Fluctuations in Galaxy Clusters

The Astrophysical Journal
Studies of surface brightness (SB) fluctuations in the intracluster medium present an indirect estimate of turbulent pressure support and associated Mach numbers.
Charles E. Romero
doaj   +1 more source

X-ray Observations of the Chemical Abundances in the Intra-Cluster Medium

, 2014
Clusters of galaxies as the largest clearly defined objects in our Universe are ideal laboratories to study the distribution of the most abundant chemical elements heavier than hydrogen and helium and the history of their production.
Böhringer, Hans
core  

Supernovae Types Ia/II and Intracluster Medium Enrichment [PDF]

, 1997
We re-examine the respective roles played by supernovae (SNe) Types Ia and II in enriching the intracluster medium (ICM) of galaxy clusters, in light of the recent downward shift of the ASCA abundance ratios of alpha-elements to iron favoured by Ishimaru
Gibson, Brad K., Loewenstein, Mike, Mushotzky, Richard F.   +2 more
core   +2 more sources

HOW AGN JETS HEAT THE INTRACLUSTER MEDIUM—INSIGHTS FROM HYDRODYNAMIC SIMULATIONS [PDF]

, 2016
Feedback from active galactic nuclei (AGNs) is believed to prevent catastrophic cooling in galaxy clusters. However, how the feedback energy is transformed into heat, and how the AGN jets heat the intracluster medium (ICM) isotropically, still remain ...
H.-Y. Karen Yang, C. Reynolds
semanticscholar   +1 more source

School‐Based Weekly Iron–Folic Acid Supplementation and Its Effect on Mental Health Outcomes Among Adolescent Girls in Central Ethiopia: A Cluster‐Randomized Controlled Trial

Journal of Nutrition and Metabolism, Volume 2026, Issue 1, 2026.
Background Common mental disorders (CMDs) are increasingly recognized as a major public health challenge worldwide, with adolescent girls bearing a disproportionate burden. Moreover, iron deficiency (ID) and iron deficiency anemia (IDA) remain prevalent nutritional problems among adolescents.
Shemsu Kedir, Dessalegn Tamiru, Beyene Wondafrash Ademe, Kalkidan Hassen Abate, Qian Lin   +4 more
wiley   +1 more source

Simulating the Arrival of the Southern Substructure in the Galaxy Cluster Abell 1758

The Astrophysical Journal
Abell 1758 ( z ∼ 0.278) is a galaxy cluster composed of two structures, A1758N and A1758S, separated by ∼2.2 Mpc. The northern cluster is itself a dissociative merging cluster that has already been modeled by dedicated simulations.
Rubens E. G. Machado, Ricardo C. Volert, Richards P. Albuquerque, Rogério Monteiro-Oliveira, Gastão B. Lima Neto   +4 more
doaj   +1 more source

Implications of a Nonthermal Origin of the Excess EUV Emission from the Coma Cluster of Galaxies

, 1999
The inverse Compton (IC) interpretation of the excess EUV emission, that was recently reported from several clusters of galaxies, suggests that the amount of relativistic electrons in the intracluster medium is highly significant, W_e>10^{61} erg ...
A. M. Atoyan, Blasi P., Bloom E.D., Bowyer S., Bridle A. H., Briel U. G., Deiss B. M., Deiss B. M., Ensslin T. A., Feretti L., H. J. Völk, Kaastra J. S., Kontorovich V. M., Mittaz J. P. D., Schlickeiser R., Volk H. J.   +15 more
core   +2 more sources

Introducing the TNG-Cluster Simulation: overview and physical properties of the gaseous intracluster medium [PDF]

, 2023
Dylan Nelson, Annalisa Pillepich, Mohammadreza Ayromlou, Wonki Lee, Katrin Lehle, Eric Rohr, Nhut Truong   +6 more
openalex   +1 more source

Associations Between Night Shifts and Comorbid Depressive–Anxiety Symptoms Among Chinese Nurses: Indirect Associations via Sleep Quality and Duration

Journal of Nursing Management, Volume 2026, Issue 1, 2026.
Objectives Irregular sleep, frequently resulting from night shifts, is associated with various mental health issues. However, the specific associations among these factors remain unclear. This study aimed to investigate the associations of night shift frequency with depressive, anxiety, and comorbid depressive–anxiety symptoms and to estimate the ...
Chenhao Zhang, Jiali Zhou, Yi Zhou, Siyu Zhu, Weidi Sun, Shiyi Shan, Zeyu Luo, Denan Jiang, Lili Yang, Peige Song, Xinqiao Liu   +10 more
wiley   +1 more source

THE EVOLUTION OF THE INTRACLUSTER MEDIUM METALLICITY IN SUNYAEV ZEL’DOVICH-SELECTED GALAXY CLUSTERS AT 0 < z < 1.5 [PDF]

, 2016
We present the results of an X-ray spectral analysis of 153 galaxy clusters observed with the Chandra, XMM-Newton, and Suzaku space telescopes. These clusters, which span 0 < z < 1.5, were drawn from a larger, mass-selected sample of galaxy clusters ...
M. McDonald, E. Bulbul, T. Haan, E. Miller, B. Benson, B. Benson, L. Bleem, L. Bleem, M. Brodwin, J. Carlstrom, I. Chiu, W. Forman, J. Hlavacek-Larrondo, G. Garmire, N. Gupta, N. Gupta, J. Mohr, C. Reichardt, A. Saro, B. Stalder, A. Stark, J. Vieira   +21 more
semanticscholar   +1 more source