The Astrophysical Journal LettersWe present joint South Pole Telescope and XMM-Newton observations of eight massive galaxy clusters (0.8–2 × 10 ^15 M _⊙ ) spanning a redshift range of 0.16–0.35. Employing a novel Sunyaev–Zel’dovich + X-ray fitting technique, we effectively constrain the
Arnab Sarkar +13 more
doaj +1 more source
Formation Scenarios for Globular Clusters and Their Host Galaxies [PDF]
arXiv, 2001 This review focuses on how galaxies and their globular cluster systems form. I first discuss the now fairly convincing evidence that some globular clusters form in galaxy starbursts/mergers. One way these observations are valuable is they place important constraints on the physics of the formation of globular clusters.
arxiv
Similarity Assessment of the Engineering Concepts: Decision‐Making Support and Metrics
Systems Engineering, EarlyView.ABSTRACT The new product development (NPD) process is a systematic approach to bring new products and innovations to market. Nowadays, this process is affected by a number of influencing factors associated with the fast‐paced technological changes. One of those factors is the distributed design nature of product development activities: team members are
Yaroslav Menshenin +3 more
wiley +1 more source
Cosmic ray feedback in galaxies and galaxy clusters: A pedagogical introduction and a topical review of the acceleration, transport, observables, and dynamical impact of cosmic rays. [PDF]
Astron Astrophys Rev, 2023 Ruszkowski M, Pfrommer C.
europepmc +1 more source
AMICO galaxy clusters in KiDS-DR3: sample properties and selection function
, 2018 We present the first catalogue of galaxy cluster candidates derived from the third data release of the Kilo Degree Survey (KiDS-DR3). The sample of clusters has been produced using the Adaptive Matched Identifier of Clustered Objects (AMICO) algorithm ...
Bardelli, Sandro +7 more
core +1 more source
On the Particle Acceleration Mechanisms in a Double Radio Relic Galaxy Cluster, Abell 1240
The Astrophysical JournalWe present a 368 ks deep Chandra observation of Abell 1240, a binary merging galaxy cluster at a redshift of 0.195 with two brightest cluster galaxies that may have passed each other 0.3 Gyr ago.
Arnab Sarkar +14 more
doaj +1 more source
Galaxy clusters enveloped by vast volumes of relativistic electrons. [PDF]
Nature, 2022 Cuciti V +14 more
europepmc +1 more source
Wide field imaging of distant clusters
, 2004 Wide field imaging is key to understanding the build-up of distant clusters and their galaxy population. By focusing on the so far unexplored outskirts of clusters, where infalling galaxies first hit the cluster potential and the hot intracluster medium,
A. Diaferio, Tommaso Treu
core +2 more sources
Clustering of Mass and Galaxies [PDF]
, 2001 These lectures cover various aspects of the statistical description of cosmological density fields. Observationally, this consists of the point process defined by galaxies, and the challenge is to relate this to the continuous density field generated by gravitational instability in dark matter.
openaire +3 more sources
Machine learning approach of multi‐RAT selection for travelling users in 5G NSA networks
IET Networks, EarlyView.The authors present RAT selection algorithm for efficient resource allocation for public bus travelling user(s), utilising live data from multiple 5G NSA base stations. Models of the supervised machine learning algorithms: SVM, DNN and XGBoost were deployed for implementation to predict or select the appropriate RAT between 4G and 5G RATs.
Nurudeen O. Salau +2 more
wiley +1 more source