Results 101 to 110 of about 739 (176)

Galaxy populations of protoclusters in cosmological hydrodynamical simulations [PDF]

open access: yes
Context. The study of protoclusters at cosmic noon is essential for understanding the impact of the environment and of the transformational processes occurring during this epoch on galaxy properties. Aims. This work tests the predictions regarding galaxy
Cinthia Ragone-Figueroa   +8 more
core   +1 more source

Tracking Protostellar Variability in Massive Protoclusters with ALMA. I. Insights from QUARKS and MaMMOtH

open access: yesThe Astrophysical Journal
Millimeter/submillimeter variability is often attributed to dynamical disk-mediated accretion, yet detection is limited to low-mass protostars in nearby clouds.
Yuhan Yang   +24 more
doaj   +1 more source

Digging into the Interior of Hot Cores with ALMA (DIHCA). VI. The Formation of Low-mass Multiple Systems in High-mass Cluster-forming Regions

open access: yesThe Astrophysical Journal
Most stars form in multiple systems, with profound implications in numerous astronomical phenomena intrinsically linked to multiplicity. However, our knowledge about the process of how multiple stellar systems form is incomplete and biased toward nearby ...
Qiu-yi Luo   +16 more
doaj   +1 more source

Identification of Galaxy Protoclusters Based on the Spherical Top-hat Collapse Theory

open access: yesThe Astrophysical Journal
We propose a new method for finding galaxy protoclusters that is motivated by structure formation theory and also directly applicable to observations. We adopt the conventional definition that a protocluster is a galaxy group whose virial mass M _vir < M
Jaehyun Lee   +9 more
doaj   +1 more source

Visualization of tumor heterogeneity and prediction of isocitrate dehydrogenase mutation status for human gliomas using multiparametric physiologic and metabolic MRI. [PDF]

open access: yesSci Rep, 2022
Hagiwara A   +13 more
europepmc   +1 more source

A Survey of Sulfur-bearing Molecular Lines toward the Dense Cores in 11 Massive Protoclusters

open access: yesThe Astrophysical Journal Supplement Series
Sulfur-bearing molecules are commonly detected in dense cores within star-forming regions, but the total sulfur budget is significantly lower when compared to the interstellar medium value.
Mengyao Tang   +8 more
doaj   +1 more source

High Redshift Clusters and Protoclusters

open access: yes, 1999
Our understanding of the cosmic history of galaxy clusters has recently been enhanced due to an extensive series of observations including faint spectroscopic data (especially those obtained at the Keck Observatory), deep optical and NIR imaging from the ground and in space, morphological data from HST, and new constraints on the evolution of the ...
openaire   +2 more sources

The properties of X-ray-selected active galactic nuclei in protoclusters pinpointed by enormous Lyman alpha nebulae [PDF]

open access: yes
Context. Protoclusters of galaxies are overdense regions of the Universe characterized by large gas reservoirs. These environments make them ideal laboratories for investigating galaxy-AGN coevolution and the growth of SMBHs.
Vignali, C.   +27 more
core   +1 more source

The One-hundred-deg2 DECam Imaging in Narrowbands (ODIN): Survey Design and Science Goals

open access: yesThe Astrophysical Journal
We describe the survey design and science goals for One-hundred-deg ^2 DECam Imaging in Narrowbands (ODIN), a NOIRLab survey using the Dark Energy Camera (DECam) to obtain deep (AB ∼ 25.7) narrowband images over an unprecedented area of sky.
Kyoung-Soo Lee   +42 more
doaj   +1 more source

Differentiating IDH status in human gliomas using machine learning and multiparametric MR/PET. [PDF]

open access: yesCancer Imaging, 2021
Tatekawa H   +11 more
europepmc   +1 more source

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