Zobrazeno 1 - 10
of 902
pro vyhledávání: '"Shapiro Paul"'
Autor:
Ziegler, Joshua J., Shapiro, Paul R., Dawoodbhoy, Taha, Beniamini, Paz, Kumar, Pawan, Freese, Katherine, Ocvirk, Pierre, Aubert, Dominique, Lewis, Joseph S. W., Teyssier, Romain, Park, Hyunbae, Ahn, Kyungjin, Sorce, Jenny G., Iliev, Ilian T., Yepes, Gustavo, Gottlober, Stefan
Dispersion measures (DM) of fast radio bursts (FRBs) probe the density of electrons in the intergalactic medium (IGM) along their lines-of-sight, including the average density versus distance to the source and its variations in direction. While previ
Externí odkaz:
http://arxiv.org/abs/2411.02699
Autor:
Park, Hyunbae, Jung, Intae, Yajima, Hidenobu, Sorce, Jenny, Shapiro, Paul R., Ahn, Kyungjin, Ocvirk, Pierre, Teyssier, Romain, Yepes, Gustavo, Iliev, Ilian T., Lewis, Joseph S. W.
Recently, NIRSpec PRISM/CLEAR observations by JWST have begun providing rest-frame UV continuum measurements of galaxies at $z\gtrsim7$, revealing signatures of Ly$\alpha$ damping-wing (DW) absorption by the intergalactic medium (IGM). We develop a m
Externí odkaz:
http://arxiv.org/abs/2410.07377
Autor:
Ocvirk, Pierre, Lewis, Joseph S. W., Conaboy, Luke, Dubois, Yohan, Bethermin, Matthieu, Sorce, Jenny G., Aubert, Dominique, Shapiro, Paul R., Dawoodbhoy, Taha, Lee, Joohyun, Teyssier, Romain, Yepes, Gustavo, Gottlöber, Stefan, Iliev, Ilian T., Ahn, Kyungjin, Park, Hyunbae
We investigate the spatial offsets between dust and ultraviolet (UV) emission in high-redshift galaxies using the Cosmic Dawn III (CoDa III) simulation, a state-of-the-art fully coupled radiation-hydrodynamics cosmological simulation. Recent observat
Externí odkaz:
http://arxiv.org/abs/2409.05946
Publikováno v:
ApJ, 966, 72 (2024)
Dark matter-deficient galaxies (DMDGs) discovered in the survey of ultra-diffuse galaxies (UDGs), in apparent conflict with standard CDM, may be produced by high-velocity galaxy-galaxy collisions, the $\textit{Mini-bullet}$ scenario. Recent observati
Externí odkaz:
http://arxiv.org/abs/2312.11350
Dense gas in minihalos with masses of $10^6-10^8~M_\odot$ can shield themselves from reionization for $\sim100$ Myr after being exposed to the UV background. These self-shielded systems, often unresolved in cosmological simulations, can introduce str
Externí odkaz:
http://arxiv.org/abs/2309.04129
Publikováno v:
Phys. Rev. D 107, 123524 (2023)
We illustrate the effect of boundary conditions on the evolution of structure in Fuzzy Dark Matter. Scenarios explored include the evolution of single, ground-state equilibrium solutions of the Schr\"odinger-Poisson system, the relaxation of a Gaussi
Externí odkaz:
http://arxiv.org/abs/2304.03419
Autor:
Dawoodbhoy, Taha, Shapiro, Paul R., Ocvirk, Pierre, Lewis, Joseph S. W., Aubert, Dominique, Sorce, Jenny G., Ahn, Kyungjin, Iliev, Ilian T., Park, Hyunbae, Teyssier, Romain, Yepes, Gustavo
When the first galaxies formed and starlight escaped into the intergalactic medium to reionize it, galaxy formation and reionization were both highly inhomogeneous in time and space, and fully-coupled by mutual feedback. To show how this imprinted th
Externí odkaz:
http://arxiv.org/abs/2302.08523