Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Ucci, Graziano"'
Autor:
Ucci, Graziano, Dayal, Pratika, Hutter, Anne, Kobayashi, Chiaki, Gottloeber, Stefan, Yepes, Gustavo, Hunt, Leslie, Legrand, Laurent, Tortora, Crescenzo
In this work, we have implemented a detailed physical model of galaxy chemical enrichment into the ${\it Astraeus}$ (semi-numerical rAdiative tranSfer coupling of galaxy formaTion and Reionization in N-body dark matter simUlationS) framework which co
Externí odkaz:
http://arxiv.org/abs/2112.02115
Autor:
Legrand, Laurent, Hutter, Anne, Dayal, Pratika, Ucci, Graziano, Gottlöber, Stefan, Yepes, Gustavo
We use the \textsc{astraeus} framework, that couples an N-body simulation with a semi-analytic model for galaxy formation and a semi-numerical model for reionization, to quantify the star formation histories (SFHs) of galaxies in the first billion ye
Externí odkaz:
http://arxiv.org/abs/2110.06971
Autor:
Ucci, Graziano, Dayal, Pratika, Hutter, Anne, Yepes, Gustavo, Gottlöber, Stefan, Legrand, Laurent, Pentericci, Laura, Castellano, Marco, Choudhury, Tirthankar Roy
Next generation telescopes such as the James Webb Space Telescope (JWST) and the Nancy Grace Roman Space Telescope (NGRST) will enable us to study the first billion years of our Universe in unprecedented detail. In this work we use the ASTRAEUS (semi
Externí odkaz:
http://arxiv.org/abs/2004.11096
Autor:
Hutter, Anne, Dayal, Pratika, Yepes, Gustavo, Gottlöber, Stefan, Legrand, Laurent, Ucci, Graziano
We introduce a new self-consistent model of galaxy evolution and reionization, ASTRAEUS (semi-numerical rAdiative tranSfer coupling of galaxy formaTion and Reionization in N-body dArk mattEr simUlationS), which couples a state-of-the-art N-body simul
Externí odkaz:
http://arxiv.org/abs/2004.08401
Autor:
Hutter, Anne, Dayal, Pratika, Malhotra, Sangeeta, Rhoads, James, Choudhury, Tirthankar Roy, Ciardi, Benedetta, Conselice, Christopher J., Cooray, Asantha, Cuby, Jean-Gabriel, Datta, Kanan K., Fan, Xiaohui, Finkelstein, Steven, Hirata, Christopher, Iliev, Ilian, Jansen, Rolf, Kakiichi, Koki, Koekemoer, Anton, Maio, Umberto, Majumdar, Suman, Mellema, Garrelt, Mondal, Rajesh, Papovich, Casey, Rhodes, Jason, Sahlén, Martin, Schauer, Anna, Takahashi, Keitaro, Ucci, Graziano, Windhorst, Rogier, Zackrisson, Erik
This white paper highlights the crucial and urgent synergies required between WFIRST, Subaru Hyper Suprime-Cam or other >25m-class telescopes galaxy observations and SKA 21cm measurements to constrain the nature of reionization (ionization history an
Externí odkaz:
http://arxiv.org/abs/1903.03628
Autor:
Ucci, Graziano, Ferrara, Andrea, Gallerani, Simona, Pallottini, Andrea, Cresci, Giovanni, Kehrig, Carolina, Hunt, Leslie K., Vilchez, José M., Vanzi, Leonardo
Dwarf galaxies are ideal laboratories to study the physics of the interstellar medium (ISM). Emission lines have been widely used to this aim. Retrieving the full information encoded in the spectra is therefore essential. This can be efficiently and
Externí odkaz:
http://arxiv.org/abs/1810.10548
The 21-cm power spectrum (PS) has been shown to be a powerful discriminant of reionization and cosmic dawn astrophysical parameters. However, the 21-cm tomographic signal is highly non-Gaussian. Therefore there is additional information which is wast
Externí odkaz:
http://arxiv.org/abs/1805.02699
We present an updated, optimized version of GAME (GAlaxy Machine learning for Emission lines), a code designed to infer key interstellar medium physical properties from emission line intensities of UV/optical/far infrared galaxy spectra. The improvem
Externí odkaz:
http://arxiv.org/abs/1803.10236
We present a new approach based on Supervised Machine Learning (SML) algorithms to infer key physical properties of galaxies (density, metallicity, column density and ionization parameter) from their emission line spectra. We introduce a numerical co
Externí odkaz:
http://arxiv.org/abs/1611.00768
Publikováno v:
EPJ Web Conf. 99 (2015) 08002; Conference: C14-08-18.1 Proceedings
In this paper we review all the up-to-date Ultra High Energy Cosmic Rays (UHECR) events reported by AUGER, by Telescope Array (TA) and by AGASA in common coordinate maps. We also confirm our earliest (2008-2013) model, where UHECR are mostly made by
Externí odkaz:
http://arxiv.org/abs/1412.1573