Zobrazeno 101 - 110
of 421
pro vyhledávání: '"Villaescusa-Navarro, Francisco"'
Autor:
Zamudio-Fernandez, Juan, Okan, Atakan, Villaescusa-Navarro, Francisco, Bilaloglu, Seda, Cengiz, Asena Derin, He, Siyu, Levasseur, Laurence Perreault, Ho, Shirley
One of the most promising ways to observe the Universe is by detecting the 21cm emission from cosmic neutral hydrogen (HI) through radio-telescopes. Those observations can shed light on fundamental astrophysical questions only if accurate theoretical
Externí odkaz:
http://arxiv.org/abs/1904.12846
Autor:
Pisani, Alice, Massara, Elena, Spergel, David N., Alonso, David, Baker, Tessa, Cai, Yan-Chuan, Cautun, Marius, Davies, Christopher, Demchenko, Vasiliy, Doré, Olivier, Goulding, Andy, Habouzit, Mélanie, Hamaus, Nico, Hawken, Adam, Hirata, Christopher M., Ho, Shirley, Jain, Bhuvnesh, Kreisch, Christina D., Marulli, Federico, Padilla, Nelson, Pollina, Giorgia, Sahlén, Martin, Sheth, Ravi K., Somerville, Rachel, Szapudi, Istvan, van de Weygaert, Rien, Villaescusa-Navarro, Francisco, Wandelt, Benjamin D., Wang, Yun
Cosmic voids, the less dense patches of the Universe, are promising laboratories to extract cosmological information. Thanks to their unique low density character, voids are extremely sensitive to diffuse components such as neutrinos and dark energy,
Externí odkaz:
http://arxiv.org/abs/1903.05161
Autor:
Dvorkin, Cora, Gerbino, Martina, Alonso, David, Battaglia, Nicholas, Bird, Simeon, Rivero, Ana Diaz, Font-Ribera, Andreu, Fuller, George, Lattanzi, Massimiliano, Loverde, Marilena, Muñoz, Julian B., Sherwin, Blake, Slosar, Anže, Villaescusa-Navarro, Francisco
Recent advances in cosmic observations have brought us to the verge of discovery of the absolute scale of neutrino masses. Nonzero neutrino masses are known evidence of new physics beyond the Standard Model. Our understanding of the clustering of mat
Externí odkaz:
http://arxiv.org/abs/1903.03689
Autor:
Diemer, Benedikt, Stevens, Adam R. H., Lagos, Claudia del P., Calette, A. R., Tacchella, Sandro, Hernquist, Lars, Marinacci, Federico, Nelson, Dylan, Pillepich, Annalisa, Rodriguez-Gomez, Vicente, Villaescusa-Navarro, Francisco, Vogelsberger, Mark
Publikováno v:
2019 MNRAS 487, 1529
We have recently developed a post-processing framework to estimate the abundance of atomic and molecular hydrogen (HI and H2, respectively) in galaxies in large-volume cosmological simulations. Here we compare the HI and H2 content of IllustrisTNG ga
Externí odkaz:
http://arxiv.org/abs/1902.10714
Autor:
Zhang, Xinyue, Wang, Yanfang, Zhang, Wei, Sun, Yueqiu, He, Siyu, Contardo, Gabriella, Villaescusa-Navarro, Francisco, Ho, Shirley
Cosmological surveys aim at answering fundamental questions about our Universe, including the nature of dark matter or the reason of unexpected accelerated expansion of the Universe. In order to answer these questions, two important ingredients are n
Externí odkaz:
http://arxiv.org/abs/1902.05965
We study the clustering properties of dark matter halos in real- and redshift-space in cosmologies with massless and massive neutrinos through a large set of state-of-the-art N-body simulations. We provide quick and easy-to-use prescriptions for the
Externí odkaz:
http://arxiv.org/abs/1901.06045
Baryonic feedback can significantly modify the spatial distribution of matter on small scales and create a bulk relative velocity between the dominant cold dark matter and the hot gas. We study the consequences of such bulk motions using two high res
Externí odkaz:
http://arxiv.org/abs/1812.02148
Publikováno v:
Phys. Rev. Lett. 122, 041302 (2019)
Using $N$-body simulations with massive neutrino density perturbations, we detect the scale-dependent linear halo bias with high significance. This is the first time that this effect is detected in simulations containing neutrino density perturbation
Externí odkaz:
http://arxiv.org/abs/1811.12412
Publikováno v:
ApJ 874 (2019) 133
The large-scale structure of the Universe should soon be measured at high redshift during the Epoch of Reionization (EoR) through line-intensity mapping. A number of ongoing and planned surveys are using the 21 cm line to trace neutral hydrogen fluct
Externí odkaz:
http://arxiv.org/abs/1811.10609
Autor:
Square Kilometre Array Cosmology Science Working Group, Bacon, David J., Battye, Richard A., Bull, Philip, Camera, Stefano, Ferreira, Pedro G., Harrison, Ian, Parkinson, David, Pourtsidou, Alkistis, Santos, Mario G., Wolz, Laura, Abdalla, Filipe, Akrami, Yashar, Alonso, David, Andrianomena, Sambatra, Ballardini, Mario, Bernal, Jose Luis, Bertacca, Daniele, Bengaly, Carlos A. P., Bonaldi, Anna, Bonvin, Camille, Brown, Michael L., Chapman, Emma, Chen, Song, Chen, Xuelei, Cunnington, Steven, Davis, Tamara M., Dickinson, Clive, Fonseca, Jose, Grainge, Keith, Harper, Stuart, Jarvis, Matt J., Maartens, Roy, Maddox, Natasha, Padmanabhan, Hamsa, Pritchard, Jonathan R., Raccanelli, Alvise, Rivi, Marzia, Roychowdhury, Sambit, Sahlen, Martin, Schwarz, Dominik J., Siewert, Thilo M., Viel, Matteo, Villaescusa-Navarro, Francisco, Xu, Yidong, Yamauchi, Daisuke, Zuntz, Joe
Publikováno v:
Publ. Astron. Soc. Austral. 37 (2020) e007
We present a detailed overview of the cosmological surveys that will be carried out with Phase 1 of the Square Kilometre Array (SKA1), and the science that they will enable. We highlight three main surveys: a medium-deep continuum weak lensing and lo
Externí odkaz:
http://arxiv.org/abs/1811.02743