Zobrazeno 21 - 30
of 421
pro vyhledávání: '"Villaescusa-Navarro, Francisco"'
Upcoming emission-line spectroscopic surveys, such as Euclid and the Roman Space Telescope, will be affected by systematic effects due to the presence of interlopers: galaxies whose redshift and distance from us are miscalculated due to line confusio
Externí odkaz:
http://arxiv.org/abs/2309.05850
Autor:
Sethuram, Snigdaa S., Cochrane, Rachel K., Hayward, Christopher C., Acquaviva, Viviana, Villaescusa-Navarro, Francisco, Popping, Gergo, Wise, John H.
Forward-modeling observables from galaxy simulations enables direct comparisons between theory and observations. To generate synthetic spectral energy distributions (SEDs) that include dust absorption, re-emission, and scattering, Monte Carlo radiati
Externí odkaz:
http://arxiv.org/abs/2308.13648
Autor:
Gebhardt, Matthew, Anglés-Alcázar, Daniel, Borrow, Josh, Genel, Shy, Villaescusa-Navarro, Francisco, Ni, Yueying, Lovell, Christopher, Nagai, Daisuke, Davé, Romeel, Marinacci, Federico, Vogelsberger, Mark, Hernquist, Lars
We quantify the cosmological spread of baryons relative to their initial neighboring dark matter distribution using thousands of state-of-the-art simulations from the Cosmology and Astrophysics with MachinE Learning Simulations (CAMELS) project. We s
Externí odkaz:
http://arxiv.org/abs/2307.11832
Autor:
Lovell, Christopher C., Hassan, Sultan, Anglés-Alcázar, Daniel, Bryan, Greg, Fabbian, Giulio, Genel, Shy, Hahn, ChangHoon, Iyer, Kartheik, Kwon, James, de Santi, Natalí, Villaescusa-Navarro, Francisco
Using a large sample of galaxies taken from the Cosmology and Astrophysics with MachinE Learning Simulations (CAMELS) project, a suite of hydrodynamic simulations varying both cosmological and astrophysical parameters, we train a normalizing flow (NF
Externí odkaz:
http://arxiv.org/abs/2307.06967
What would a parity-violating universe look like? We present a numerical and theoretical study of mirror asymmetries in the late universe, using a new suite of $N$-body simulations: QUIJOTE-Odd. These feature parity-violating initial conditions, inje
Externí odkaz:
http://arxiv.org/abs/2306.11782
Autor:
Jung, Gabriel, Ravenni, Andrea, Baldi, Marco, Coulton, William R., Jamieson, Drew, Karagiannis, Dionysios, Liguori, Michele, Shao, Helen, Verde, Licia, Villaescusa-Navarro, Francisco, Wandelt, Benjamin D.
Publikováno v:
Astrophys.J. 957 (2023) 1, 50
We study signatures of primordial non-Gaussianity (PNG) in the redshift-space halo field on non-linear scales, using a combination of three summary statistics, namely the halo mass function (HMF), power spectrum, and bispectrum. The choice of adding
Externí odkaz:
http://arxiv.org/abs/2305.10597
Autor:
Rose, Jonah C., Torrey, Paul, Villaescusa-Navarro, Francisco, Vogelsberger, Mark, O'Neil, Stephanie, Medvedev, Mikhail V., Low, Ryan, Adhikari, Rakshak, Angles-Alcazar, Daniel
We present a new suite of over 1,500 cosmological N-body simulations with varied Warm Dark Matter (WDM) models ranging from 2.5 to 30 keV. We use these simulations to train Convolutional Neural Networks (CNNs) to infer WDM particle masses from images
Externí odkaz:
http://arxiv.org/abs/2304.14432
Autor:
Echeverri, Nicolas, Villaescusa-Navarro, Francisco, Chawak, Chaitanya, Ni, Yueying, Hahn, ChangHoon, Hernandez-Martinez, Elena, Teyssier, Romain, Angles-Alcazar, Daniel, Dolag, Klaus, Castro, Tiago
Recent work has pointed out the potential existence of a tight relation between the cosmological parameter $\Omega_{\rm m}$, at fixed $\Omega_{\rm b}$, and the properties of individual galaxies in state-of-the-art cosmological hydrodynamic simulation
Externí odkaz:
http://arxiv.org/abs/2304.06084
Autor:
Ni, Yueying, Genel, Shy, Anglés-Alcázar, Daniel, Villaescusa-Navarro, Francisco, Jo, Yongseok, Bird, Simeon, Di Matteo, Tiziana, Croft, Rupert, Chen, Nianyi, de Santi, Natalí S. M., Gebhardt, Matthew, Shao, Helen, Pandey, Shivam, Hernquist, Lars, Dave, Romeel
We present CAMELS-ASTRID, the third suite of hydrodynamical simulations in the Cosmology and Astrophysics with MachinE Learning (CAMELS) project, along with new simulation sets that extend the model parameter space based on the previous frameworks of
Externí odkaz:
http://arxiv.org/abs/2304.02096
We build a bijective mapping between different physical fields from hydrodynamic CAMELS simulations. We train a CycleGAN on three different setups: translating dark matter to neutral hydrogen (Mcdm-HI), mapping between dark matter and magnetic fields
Externí odkaz:
http://arxiv.org/abs/2303.07473