16 citations · 25 across the 11 of their papers we have counts for
11 papers
Semiresolved Stellar Populations as Distance Indicators
Ignacio Martín-Navarro, Patricia Iglesias Navarro, Francesco La Barbera +13
Galaxy distances are central to our understanding of the Universe. Despite the success of existing approaches, independent and complementary methods remain valuable for testing sys…
Alleviating prior dependencies for DESI DR1 clustering fits through reparameterization
Marco Bonici, Simone Paradiso, Glenn McGee +48
Bayesian analyses of the full-shape clustering of Dark Energy Spectroscopic Instrument (DESI) Data Release 1 (DR1) exhibit prior-volume projection effects, whereby weakly constrain…
Reconstructing Quasar Spectra and Measuring the Ly Forest with
ChangHoon Hahn, Satya Gontcho A Gontcho, Peter Melchior +37
Quasar spectra carry the imprint of foreground intergalactic medium (IGM) through absorption features. In particular, absorption caused by neutral hydrogen gas, the ``Ly forest,…
Simulation-based inference of galaxy properties from JWST pixels
Patricia Iglesias-Navarro, Marc Huertas-Company, Pablo Pérez-González +6
We present an efficient Bayesian SED-fitting framework tailored to multiwavelength pixel photometry from the JWST Advanced Deep Extragalactic Survey (JADES). Our method employs sim…
Inhomogeneous Dust Biases Photometric Redshifts and Stellar Masses for LSST
ChangHoon Hahn, Peter Melchior
Spectral energy distribution (SED) modeling is one of the main methods to estimate galaxy properties, such as photometric redshifts, , and stellar masses, , for extragalact…
Constraining Protoplanetary Disk Winds from Forbidden Line Profiles with Simulation-based Inference
Ahmad Nemer, ChangHoon Hahn, Jiaxuan Li +2
Protoplanetary disks are the sites of vigorous hydrodynamic processes, such as accretion and outflows, and ultimately establish the conditions for the formation of planets. The pro…
Modeling the Kinematics of Central and Satellite Galaxies Using Normalizing Flows
K. J. Kwon, ChangHoon Hahn
Galaxy clustering contains information on cosmology, galaxy evolution, and the relationship between galaxies and their dark matter hosts. On small scales, the detailed kinematics o…
Cosmology with Galaxy Photometry Alone
ChangHoon Hahn, Francisco Villaescusa-Navarro, Peter Melchior +1
We present the first cosmological constraints using only the observed photometry of galaxies. Villaescusa-Navarro et al. (2022; arXiv:2201.02202) recently demonstrated that the int…
Galaxies Going Bananas: Inferring the 3D Geometry of High-Redshift Galaxies with JWST-CEERS
Viraj Pandya, Haowen Zhang, Marc Huertas-Company +53
The 3D geometry of high-redshift galaxies remains poorly understood. We build a differentiable Bayesian model and use Hamiltonian Monte Carlo to efficiently and robustly infer the…
Cosmology with multiple galaxies
Chaitanya Chawak, Francisco Villaescusa-Navarro, Nicolas Echeverri Rojas +3
Recent works have discovered a relatively tight correlation between and properties of individual simulated galaxies. Because of this, it has been shown that constraints…
PopSED: Population-Level Inference for Galaxy Properties from Broadband Photometry with Neural Density Estimation
Jiaxuan Li, Peter Melchior, ChangHoon Hahn +1
We present PopSED, a framework for the population-level inference of galaxy properties from photometric data. Unlike the traditional approach of first analyzing individual galaxies…