Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Han Aung"'
Autor:
Han Aung, Daisuke Nagai, Anatoly Klypin, Peter Behroozi, Mohamed H Abdullah, Tomoaki Ishiyama, Francisco Prada, Enrique Pérez, Javier López Cacheiro, José Ruedas
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 519:1648-1656
We present the public data release of the Uchuu-UM galaxy catalogues by applying the UNIVERSEMACHINE algorithm to assign galaxies to the dark matter haloes in the Uchuu N-body cosmological simulation. It includes a variety of baryonic properties for
Autor:
Rafael García, Edgar Salazar, Eduardo Rozo, Susmita Adhikari, Han Aung, Benedikt Diemer, Daisuke Nagai, Brandon Wolfe
Dark matter haloes have long been recognized as one of the fundamental building blocks of large scale structure formation models. Despite their importance -- or perhaps because of it! -- halo definitions continue to evolve towards more physically mot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::693705c4998603f650c99bbae473190b
http://arxiv.org/abs/2207.11827
http://arxiv.org/abs/2207.11827
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 504:1619-1626
The line-of-sight velocity dispersion profile of galaxy clusters exhibits a "kink" corresponding to the spatial extent of orbiting galaxies. Because the spatial extent of a cluster is correlated with the amplitude of the velocity dispersion profile,
We present a percent-level accurate model of the line-of-sight velocity distribution of galaxies around dark matter halos as a function of projected radius and halo mass. The model is developed and tested using synthetic galaxy catalogs generated wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::866451c86ef1a32a0e645121338bcd1a
http://arxiv.org/abs/2204.13131
http://arxiv.org/abs/2204.13131
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 502:1041-1047
The phase space structure of dark matter halos can be used to measure the mass of the halo, infer mass accretion rates, and probe the effects of modified gravity. Previous studies showed that the splashback radius can be measured in position space us
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 499:1291-1299
We study the distribution of line-of-sight velocities of galaxies in the vicinity of SDSS redMaPPer galaxy clusters. Based on their velocities, galaxies can be split into two categories: galaxies that are dynamically associated with the cluster, and
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 484:1100-1132
We study the effects of Kelvin-Helmholtz instability (KHI) on the cold streams that feed high-redshift galaxies through their hot haloes, generalizing our earlier analyses of a 2D slab to a 3D cylinder, but still limiting our analysis to the adiabati
We develop a machine learning algorithm that generates high-resolution thermal Sunyaev-Zeldovich (SZ) maps of novel galaxy clusters given only halo mass and mass accretion rate. The algorithm uses a conditional variational autoencoder (CVAE) in the f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3799cef3501c547ba822fb265bad5950
Autor:
Srinivasan Raghunathan, Nathan Whitehorn, Marcelo A. Alvarez, Han Aung, Nicholas Battaglia, Gilbert P. Holder, Daisuke Nagai, Elena Pierpaoli, Christian L. Reichardt, Joaquin D. Vieira
We forecast the number of galaxy clusters that can be detected via the thermal Sunyaev-Zeldovich (tSZ) signals by future cosmic microwave background (CMB) experiments, primarily the wide area survey of the CMB-S4 experiment but also CMB-S4's smaller
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9118848f7385b901d56f6b9e477d282c
Recent advances in simulations and observations of galaxy clusters suggest that there exists a physical outer boundary of massive cluster-size dark matter haloes. In this work, we investigate the locations of the outer boundaries of dark matter and g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ce8c4512e35e001016085d4c059b94c
http://arxiv.org/abs/2012.00977
http://arxiv.org/abs/2012.00977