Zobrazeno 1 - 10
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pro vyhledávání: '"Mandelbaum, Rachel"'
Forthcoming cosmological imaging surveys, such as the Rubin Observatory LSST, require large-scale simulations encompassing realistic galaxy populations for a variety of scientific applications. Of particular concern is the phenomenon of intrinsic ali
Externí odkaz:
http://arxiv.org/abs/2409.18761
Noise bias is a significant source of systematic error in weak gravitational lensing measurements that must be corrected to satisfy the stringent standards of modern imaging surveys in the era of precision cosmology. This paper reviews the analytical
Externí odkaz:
http://arxiv.org/abs/2408.06337
Autor:
Asai, Shoji, Ballarino, Amalia, Bose, Tulika, Cranmer, Kyle, Cyr-Racine, Francis-Yan, Demers, Sarah, Geddes, Cameron, Gershtein, Yuri, Heeger, Karsten, Heinemann, Beate, Hewett, JoAnne, Huber, Patrick, Mahn, Kendall, Mandelbaum, Rachel, Maricic, Jelena, Merkel, Petra, Monahan, Christopher, Murayama, Hitoshi, Onyisi, Peter, Palmer, Mark, Raubenheimer, Tor, Sanchez, Mayly, Schnee, Richard, Seidel, Sally, Seo, Seon-Hee, Thaler, Jesse, Touramanis, Christos, Vieregg, Abigail, Weinstein, Amanda, Winslow, Lindley, Yu, Tien-Tien, Zwaska, Robert
This is the report from the 2023 Particle Physics Project Prioritization Panel (P5) approved by High Energy Physics Advisory Panel (HEPAP) on December 8, 2023. The final version was made public on May 8, 2024 and submitted to DOE SC and NSF MPS.
Externí odkaz:
http://arxiv.org/abs/2407.19176
Autor:
Armstrong, Robert, Sheldon, Erin, Huff, Eric, Bosch, Jim, Rykoff, Eli, Mandelbaum, Rachel, Kannawadi, Arun, Melchior, Peter, Lupton, Robert, Becker, Matthew R., Al-Sayyed, Yusra, Collaboration, The LSST Dark Energy Science
Upcoming wide field surveys will have many overlapping epochs of the same region of sky. The conventional wisdom is that in order to reduce the errors sufficiently for systematics-limited measurements, like weak lensing, we must do simultaneous fitti
Externí odkaz:
http://arxiv.org/abs/2407.01771
Autor:
Linke, Laila, Pyne, Susan, Joachimi, Benjamin, Georgiou, Christos, Hoffmann, Kai, Mandelbaum, Rachel, Singh, Sukhdeep
Cosmic shear is a powerful probe of cosmology, but it is affected by the intrinsic alignment (IA) of galaxy shapes with the large-scale structure. Upcoming surveys like Euclid and Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST) req
Externí odkaz:
http://arxiv.org/abs/2406.05122
Autor:
Zhou, Alan Junzhe, Li, Yin, Dodelson, Scott, Mandelbaum, Rachel, Zhang, Yucheng, Li, Xiangchong, Fabbian, Giulio
The analyses of the next generation cosmological surveys demand an accurate, efficient, and differentiable method for simulating the universe and its observables across cosmological volumes. We present Hamiltonian ray tracing (HRT) -- the first post-
Externí odkaz:
http://arxiv.org/abs/2405.12913
Recent cosmic shear analyses have exhibited inconsistencies of up to $1\sigma$ between the inferred cosmological parameters when analyzing summary statistics in real space versus harmonic space. In this paper, we demonstrate the consistent measuremen
Externí odkaz:
http://arxiv.org/abs/2404.02190
Publikováno v:
MNRAS, Volume 531, Issue 4, July 2024, 4954-4973
Galaxy clustering measurements are a key probe of the matter density field in the Universe. With the era of precision cosmology upon us, surveys rely on precise measurements of the clustering signal for meaningful cosmological analysis. However, the
Externí odkaz:
http://arxiv.org/abs/2401.12293
We present a systematic study of cosmological parameter bias in weak lensing and large-scale structure analyses for upcoming imaging surveys induced by the interplay of intrinsic alignments (IA) and photometric redshift (photo-z) model mis-specificat
Externí odkaz:
http://arxiv.org/abs/2401.06060
Diffusion-based generative models represent the current state-of-the-art for image generation. However, standard diffusion models are based on Euclidean geometry and do not translate directly to manifold-valued data. In this work, we develop extensio
Externí odkaz:
http://arxiv.org/abs/2312.11707