Results 21 to 30 of about 11,465 (256)
Machine-learning Cosmology from Void Properties
The Astrophysical Journal, 2023 Cosmic voids are the largest and most underdense structures in the Universe. Their properties have been shown to encode precious information about the laws and constituents of the Universe.
Bonny Y. Wang +3 more
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The Astrophysical Journal, 2023 We present CAMELS-ASTRID, the third suite of hydrodynamical simulations in the Cosmology and Astrophysics with MachinE Learning (CAMELS) project, along with new simulation sets that extend the model parameter space based on the previous frameworks of ...
Yueying Ni +14 more
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The Time Evolution of Mutual Information between Disjoint Regions in the Universe
Entropy, 2023 We study the time evolution of mutual information between mass distributions in spatially separated but casually connected regions in an expanding universe.
Biswajit Pandey
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Observed Evidence for the Primordial Origin of Galaxy Sizes
The Astrophysical JournalWe present observational evidence supporting the scenario that the protogalactic angular momenta play an important role in molding the optical sizes of present galaxies. Analyzing the NASA-Sloan Atlas catalog in the redshift range of 0.02 ≤ z
Jun-Sung Moon, Jounghun Lee
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Large–scale structure and matter in the Universe
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2003 17 Pages. Review paper from the January 2003 Royal Society Discussion Meeting, "The search for dark matter and dark energy in the universe"
openaire +3 more sources
Quasars and large scale structure of the universe [PDF]
, 2008 The majority of bright distant quasars $(z {}^{>}_{\sim} 1)$ may form in massive mergers appearing in compact galaxy groups in/and young clusters. The expected tests are (i) large correlation signal for medium-$z$ QSOs $(1 < z < 2)$ and (ii) direct search for quasar groups (QGs) indicating positions of distant pre-superclusters which later ...
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The Astrophysical JournalLarge-scale structure (LSS) analysis in galaxy surveys is a powerful cosmological probe but is limited by tracer bias, which can obscure underlying information and weaken parameter constraints.
Zhujun Jiang +8 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Introduction The use of herbal medical preparation (HMP) is rising among pediatric oncology patients, often to manage treatment‐related symptoms. Their effectiveness remains uncertain, and the risk of herb–drug interactions is underestimated.
Orianne Mahot +6 more
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Density-shear Baryon Acoustic Oscillation as a Cosmological Consistency Check
The Astrophysical Journal LettersTensions often arise between different data sets in cosmology, and consistency tests can serve as a powerful tool for diagnosing potential issues. Density-shear baryon acoustic oscillation (GI BAO) is the imprint of the BAO feature on the shear field ...
Kwan Chuen Chan +2 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei +17 more
wiley +1 more source