187 citations · 751 across the 26 of their papers we have counts for
16 papers · 1 filter
Searching for Population III stars with line intensity mapping cross-correlations
Sahil Hegde, Guochao Sun, Julian B. Muñoz +1
Decades of searches for Population III stars in individual galaxies have yielded a few potential candidates, but a statistically robust characterization of the demographics of the…
LIMFAST. IV. Learning High-Redshift Galaxy Formation from Multiline Intensity Mapping with Implicit Likelihood Inference
Guochao Sun, Tri Nguyen, Claude-André Faucher-Giguère +5
By opening up new avenues to statistically constrain astrophysics and cosmology with large-scale structure observations, the line intensity mapping (LIM) technique calls for novel…
Constraining bursty star formation histories with galaxy UV and H luminosity functions and clustering
Guochao Sun, Julian B. Muñoz, Jordan Mirocha +1
The observed prevalence of galaxies exhibiting bursty star formation histories (SFHs) at has created new challenges and opportunities for understanding their formation…
Effects of Bursty Star Formation on [CII] Line Intensity Mapping of High-redshift Galaxies
Lun-Jun Liu, Guochao Sun, Tzu-Ching Chang +2
Bursty star formation -- a key prediction for high-redshift galaxies from cosmological simulations explicitly resolving stellar feedback in the interstellar medium -- has recently…
Bursty Star Formation Naturally Explains the Abundance of Bright Galaxies at Cosmic Dawn
Guochao Sun, Claude-André Faucher-Giguère, Christopher C. Hayward +3
Recent discoveries of a significant population of bright galaxies at cosmic dawn have enabled critical tests of cosmological galaxy formation models. In…
Probing bursty star formation by cross-correlating extragalactic background light and galaxy surveys
Guochao Sun, Adam Lidz, Andreas L. Faisst +1
Understanding the star formation rate (SFR) variability and how it depends on physical properties of galaxies is important for developing and testing the theory of galaxy formation…
Seen and unseen: bursty star formation and its implications for observations of high-redshift galaxies with JWST
Guochao Sun, Claude-André Faucher-Giguère, Christopher C. Hayward +1
Both observations and simulations have shown strong evidence for highly time-variable star formation in low-mass and/or high-redshift galaxies, which has important observational im…
The early Universe was dust-rich and extremely hot
Marco P. Viero, Guochao Sun, Dongwoo T. Chung +2
We investigate the dust properties and star-formation signature of galaxies in the early universe by stacking 111227 objects in the recently released COSMOS catalogue on maps at wa…
Probing Population III Initial Mass Functions with He II/H Intensity Mapping
Jasmine Parsons, Lluis Mas-Ribas, Guochao Sun +3
We demonstrate the potential of line-intensity mapping to place constraints on the initial mass function (IMF) of Population III stars via measurements of the mean He II 1640A/H…
Revealing the formation histories of the first stars with the cosmic near-infrared background
Guochao Sun, Jordan Mirocha, Richard H. Mebane +1
The cosmic near-infrared background (NIRB) offers a powerful integral probe of radiative processes at different cosmic epochs, including the pre-reionization era when metal-free, P…
Probing Cosmic Reionization and Molecular Gas Growth with TIME
Guochao Sun, Tzu-Ching Chang, Bade D. Uzgil +23
Line intensity mapping (LIM) provides a unique and powerful means to probe cosmic structures by measuring the aggregate line emission from all galaxies across redshift. The method…
A Self-consistent Framework for Multiline Modeling in Line Intensity Mapping Experiments
Guochao Sun, Brandon S. Hensley, Tzu-Ching Chang +2
Line intensity mapping (LIM) is a promising approach to study star formation and the interstellar medium (ISM) in galaxies by measuring the aggregate line emission from the entire…
A Minimalist Feedback-Regulated Model for Galaxy Formation During the Epoch of Reionization
Steven Furlanetto, Jordan Mirocha, Richard Mebane +1
Near-infrared surveys have now determined the luminosity functions of galaxies at 6<z<9 to impressive precision and identified a number of candidates at even earlier times. Here we…
A Foreground Masking Strategy for [CII] Intensity Mapping Experiments Using Galaxies Selected by Stellar Mass and Redshift
Guochao Sun, Lorenzo Moncelsi, Marco P. Viero +11
Intensity mapping provides a unique means to probe the epoch of reionization (EoR), when the neutral intergalactic medium was ionized by the energetic photons emitted from the firs…
The Global 21-cm Signal in the Context of the High-z Galaxy Luminosity Function
Jordan Mirocha, Steven R. Furlanetto, G. Sun
Motivated by recent progress in studies of the high- Universe, we build a new model for the global 21-cm signal that is explicitly calibrated to measurements of the galaxy lumin…
Constraints on the Star Formation Efficiency of Galaxies During the Epoch of Reionization
Guochao Sun, Steven R. Furlanetto
Reionization is thought to have occurred in the redshift range of , which is now being probed by both deep galaxy surveys and CMB observations. Using halo abundance matc…