Results 91 to 100 of about 427,202 (211)
Probing the universe with multiple large-scale structure tracers
, 2021 Ziang Yan
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Monopole Fluctuations in Galaxy Surveys
The Astrophysical Journal LettersGalaxy clustering provides a powerful way to probe cosmology. This requires understanding of the background mean density of galaxy samples, which is estimated from the survey itself by averaging the observed galaxy number density over the angular ...
Jaiyul Yoo, Daniel Eisenstein
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Enhancing Morphological Measurements of the Cosmic Web with Delaunay Tessellation Field Estimation
The Astrophysical Journal Supplement SeriesThe density fields constructed by traditional mass assignment methods are susceptible to irritating discreteness, which hinders morphological measurements of cosmic large-scale structure (LSS) through Minkowski functionals (MFs). To alleviate this issue,
Yu Liu, Yu Yu, Pengjie Zhang, Hao-Ran Yu
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Signatures of Primordial Gravitational Waves on the Large-Scale\n Structure of the Universe [PDF]
, 2021 Pritha Bari +4 more
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TANGENTIAL LARGE SCALE STRUCTURE EVIDENCE FOR A LOW DENSITY UNIVERSE
, 2002 Boudewijn F. Roukema, G. A. Mamon
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Metacatalogue of galaxies and large scale structures in the Universe [PDF]
, 1982 M. Kalinkov
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Correlation-based Beam Calibration of 21 cm Intensity Mapping
The Astrophysical Journal Supplement SeriesForeground removal presents a significant obstacle in both current and forthcoming intensity-mapping surveys. While numerous techniques have been developed that show promise in simulated data sets, their efficacy often diminishes when they are applied to
Jiacheng Ding +3 more
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Recovering Cosmic Structure with a Simple Physical Constraint
The Astrophysical JournalRadio observation of the large-scale structure (LSS) of our Universe faces major challenges from foreground contamination, which is many orders of magnitude stronger than the cosmic signal.
Tian-Cheng Luan +5 more
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The Cosmic Dance: Observational Detection of Coherent Spin in Galaxy Clusters
The Astrophysical Journal LettersThe spin of galaxy clusters encodes key information about their formation, dynamics, and the influence of large-scale structure. However, whether clusters possess statistically significant spin and how to measure it observationally remain open questions.
Xiao-xiao Tang +4 more
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