Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Li Dayi"'
Autor:
Cook, A. M., Li, Dayi, Eadie, Gwendolyn M., Stenning, David C., Scholz, Paul, Bingham, Derek, Craiu, Radu, Gaensler, B. M., Masui, Kiyoshi W., Pleunis, Ziggy, Herrera-Martin, Antonio, Joseph, Ronniy C., Pandhi, Ayush, Pearlman, Aaron B., Prochaska, J. Xavier
This paper introduces an approach to analyze nonhomogeneous Poisson processes (NHPP) observed with noise, focusing on previously unstudied second-order characteristics of the noisy process. Utilizing a hierarchical Bayesian model with noisy data, we
Externí odkaz:
http://arxiv.org/abs/2410.12146
Autor:
Li, Dayi, Eadie, Gwendolyn, Brown, Patrick, Harris, William, Abraham, Roberto, van Dokkum, Pieter, Janssens, Steven, Berek, Samantha, Danieli, Shany, Romanowsky, Aaron, Speagle, Joshua
We present \textsc{Mathpop}, a novel method to infer the globular cluster (GC) counts in ultra-diffuse galaxies (UDGs) and low-surface brightness galaxies (LSBGs). Many known UDGs have a surprisingly high ratio of GC number to surface brightness. How
Externí odkaz:
http://arxiv.org/abs/2409.06040
Autor:
van Dokkum, Pieter, Li, Dayi David, Abraham, Roberto, Danieli, Shany, Eadie, Gwendolyn M., Harris, William E., Romanowsky, Aaron J.
Publikováno v:
Res. Notes AAS, 8, 135 (2024)
CDG-1 is a tight grouping of four likely globular clusters in the Perseus cluster, and a candidate dark galaxy with little or no diffuse light. Here we provide new constraints on the luminosity of any underlying stellar emission, using HST/UVIS F200L
Externí odkaz:
http://arxiv.org/abs/2405.12907
Autor:
Li, Dayi, Zhang, Ziang
Approximate Bayesian inference based on Laplace approximation and quadrature methods have become increasingly popular for their efficiency at fitting latent Gaussian models (LGM), which encompass popular models such as Bayesian generalized linear mod
Externí odkaz:
http://arxiv.org/abs/2403.12250
We propose a novel set of Poisson Cluster Process (PCP) models to detect Ultra-Diffuse Galaxies (UDGs), a class of extremely faint, enigmatic galaxies of substantial interest in modern astrophysics. We model the unobserved UDG locations as parent poi
Externí odkaz:
http://arxiv.org/abs/2302.06567
Autor:
Li, Dayi, Eadie, Gwendolyn M., Abraham, Roberto G., Brown, Patrick E., Harris, William E., Janssens, Steven R., Romanowsky, Aaron J., van Dokkum, Pieter, Danieli, Shany
We introduce a new method for detecting ultra-diffuse galaxies by searching for over-densities in intergalactic globular cluster populations. Our approach is based on an application of the log-Gaussian Cox process, which is a commonly used model in t
Externí odkaz:
http://arxiv.org/abs/2204.05487
Autor:
Li, Dayi, Barmby, Pauline
Publikováno v:
2021, MNRAS, 501, 3472
We demonstrate the power of Gibbs point process models from the spatial statistics literature when applied to studies of resolved galaxies. We conduct a rigorous analysis of the spatial distributions of objects in the star formation complexes of M33,
Externí odkaz:
http://arxiv.org/abs/2012.05938
Akademický článek
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Autor:
Cai, Xin, Ng, Charles P., Jones, Olivia, Fung, Tak Shun, Ryu, Keun Woo, Li, Dayi, Thompson, Craig B.
Publikováno v:
In Molecular Cell 2 November 2023 83(21):3904-3920
Autor:
Li, Dayi, Zhou, Jingchun, Wang, Shiyin, Zhang, Dehuan, Zhang, Weishi, Alwadai, Raghad, Alenezi, Fayadh, Tiwari, Prayag, Shi, Taian
Publikováno v:
In Engineering Applications of Artificial Intelligence August 2023 123 Part C