Results 81 to 90 of about 130,011 (259)

GALAXY CLUSTERS AT HIGH REDSHIFT AND EVOLUTION OF BRIGHTEST CLUSTER GALAXIES [PDF]

The Astrophysical Journal, 2011
10 pages, 14 figures, 2 tables; added reference, corrected typos; Table 2 is available at http://zmtt.bao.ac.cn/wzl/CV_wen ...
Wen, Z. L., Han, J. L.
openaire   +2 more sources

Form flows function: Learner‐centered game Re‐design in a STEM classroom

British Educational Research Journal, EarlyView.
Abstract Re‐designing games facilitates interest‐driven learning and immerses learners in systems thinking. However, there are limited studies exploring how the form and function of tabletop games influence learners' design decisions and learning experiences. To address this gap, we conducted a mixed‐methods study in a STEM classroom in western Canada.
Farzan Baradaran Rahimi, Beaumie Kim, Shima Dadkhahfard   +2 more
wiley   +1 more source

Galaxy Populations in Groups and Clusters: Evidence for a Characteristic Stellar Mass Scale at M ∗ ∼ 109.5 M ⊙

The Astrophysical Journal, 2023
We use the DR9 of the DESI legacy imaging survey and SDSS galaxy groups to measure the conditional luminosity function (CLF) for groups with halo mass M _h ≥ 10 ^12 M _⊙ and redshift 0.01 ≤ z ≤ 0.08, down to a limiting r -band magnitude of M _r = −10 to −
Jiacheng Meng, Cheng Li, H. J. Mo, Yangyao Chen, Zhen Jiang, Lizhi Xie   +5 more
doaj   +1 more source

Shell-like structures in our cosmic neighbourhood

, 2016
Signatures of the processes in the early Universe are imprinted in the cosmic web. Some of them may define shell-like structures characterised by typical scales.
Arnalte-Mur, P., Einasto, J., Einasto, M., Heinämäki, P., Hurtado-Gil, L., Liivamägi, L. J., Martinez, V. J., Nurmi, P., Saar, E.   +8 more
core   +1 more source

Cosmology with Clusters of Galaxies [PDF]

Particle Physics and the Universe, 2000
I show that three independent methods utilizing clusters of galaxies - cluster dynamics and mass-to-light ratio, baryon fraction in clusters, and cluster evolution - all indicate the same robust result: the mass-density of the universe is low, Omega ~ 0.2, and the mass approximately traces light on large scales.
openaire   +4 more sources

Constraints on Nonthermal Pressure at Galaxy Cluster Outskirts from a Joint SPT and XMM-Newton Analysis

The Astrophysical Journal Letters
We 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, Michael McDonald, Lindsey Bleem, Mark Bautz, Bradford A. Benson, Priyanka Chakraborty, Catherine E. Grant, Christine Jones, Florian Kéruzoré, Eric D. Miller, Scott Randall, Charles Romero, Taweewat Somboonpanyakul, Yuanyuan Su   +13 more
doaj   +1 more source

Constraining Baryon Loading Efficiency of Active Galactic Nuclei with Diffuse Neutrino Flux from Galaxy Clusters

The Astrophysical Journal, 2023
Active galactic nuclei (AGNs) are widely believed to be one of the promising acceleration sites of ultrahigh-energy cosmic rays (CRs). Essentially, AGNs are powered by the gravitational energy of matter falling into supermassive black holes. However, the
Xin-Yue Shi, Ruo-Yu Liu, Chong Ge, Xiang-Yu Wang   +3 more
doaj   +1 more source

A Multiband Study of the Galaxy Populations of the First Four Sunyaev--Zeldovich Effect selected Galaxy Clusters

, 2011
We present first results of an examination of the optical properties of the galaxy populations in SZE selected galaxy clusters. Using clusters selected by the South Pole Telescope survey and deep multiband optical data from the Blanco Cosmology Survey ...
A. A. Stark, A. Rest, A. Zenteno, Andersson, Andreon, B. A. Benson, B. Stalder, Barkhouse, Bartelmann, Berlind, Bertin, Bertin, Biviano, Brimioulle, Brodwin, C.-C. Ngeow, Carlberg, Carlstrom, Collins, D. L. Tucker, De Lucia, De Propris, De Propris, E. Bertin, E. J. Buckley-Geer, Ebeling, Eisenhardt, Elston, F. W. High, G. Bazin, Gladders, Guzzo, H. Lin, Hansen, High, High, Holden, J. J. Mohr, J. Liu, J. Song, Johnston, K. Andersson, Koester, Komatsu, Lin, Lin, Lin, Loh, Lucey, López-Cruz, M. Brodwin, Margoniner, Marinoni, Menanteau, Muzzin, Muzzin, Muzzin, Muzzin, Nagai, Navarro, Press, R. Armstrong, R. C. Smith, Rines, S. Desai, S. M. Hansen, S. S. Allam, Song, Stanford, Staniszewski, Sunyaev, Sutherland, Szalay, Vanderlinde, Vikhlinin, Vikhlinin, Voges, Voges, W. A. Barkhouse, Williamson, Y. Yang, Y.-T. Lin, Zheng   +82 more
core   +2 more sources

MUC1 as a Survival Effector of Radiotherapy‐Induced Epithelial Hybrid States in Basal‐Like Breast Cancer

International Journal of Cancer, EarlyView.
Basal‐like breast cancer (BLBC) is aggressive and often exhibits inherent or acquired resistance to radiotherapy (RT), a primary treatment option. RT resistance is underpinned by molecular alterations, many of which are poorly understood. Here, RT‐induced transcriptomic changes were analyzed using bulk and spatial sequencing in a BLBC mouse model and ...
Garyfallia Pantelaiou‐Prokaki, Husam Bamahmoud, Nadine S. Georges, Shaishavi Jansari, Annika Jung, Daniela Grimm, Evangelos Prokakis, Fabian Alexander Gayer, Maryam Deldar, Christian Dullin, Julia Gallwas, Florian Wegwitz, Frauke Alves   +12 more
wiley   +1 more source

Low Injection Rate of Cosmic-Ray Protons in the Turbulent Reacceleration Model of Radio Halos in Galaxy Clusters

The Astrophysical Journal
A giant radio halo (RH) is a diffuse synchrotron emission observed on the scale of megaparsecs, typically found in the central region of merging galaxy clusters.
Kosuke Nishiwaki, Katsuaki Asano
doaj   +1 more source