359 citations · 4.2k across the 145 of their papers we have counts for
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The Properties of Little Red Dot Galaxies in the ASTRID Simulation
Patrick LaChance, Rupert A. C. Croft, Tiziana Di Matteo +5
We present simulated counterparts of the ``Little Red Dot'' (LRD) galaxies observed with JWST, using the large cosmological hydrodynamic simulation, ASTRID. We create mock observat…
(Nearly) Model-Independent Constraints on the Neutral Hydrogen Fraction in the Intergalactic Medium at Using Dark Pixel Fractions in Ly and Ly Forests
Xiangyu Jin, Jinyi Yang, Xiaohui Fan +10
Cosmic reionization was the last major phase transition of hydrogen from neutral to highly ionized in the intergalactic medium (IGM). Current observations show that the IGM is sign…
Cosmology with the Laser Interferometer Space Antenna
Pierre Auclair, David Bacon, Tessa Baker +177
The Laser Interferometer Space Antenna (LISA) has two scientific objectives of cosmological focus: to probe the expansion rate of the universe, and to understand stochastic gravita…
Implications for the Hubble tension from the ages of the oldest astrophysical objects
Sunny Vagnozzi, Fabio Pacucci, Abraham Loeb
We use the ages of old astrophysical objects (OAO) in the redshift range as stringent tests of the late-time cosmic expansion history. Since the age of th…
Effects of the Hubble Parameter on the Cosmic Growth of the First Quasars
Rafael C. Nunes, Fabio Pacucci
Supermassive black holes (SMBHs) play a crucial role in the evolution of galaxies and are currently detected up to . Theories describing black hole (BH) growth are chall…
Warm dark matter constraints from high- Direct Collapse Black Holes using the JWST
Pratika Dayal, Tirthankar Roy Choudhury, Fabio Pacucci +1
We use a semi-analytic model, , that jointly tracks the dark matter and baryonic assembly of high-redshift () galaxies to gain insight on the number de…
Reionization and Galaxy Formation in Warm Dark Matter Cosmologies
Pratika Dayal, Tirthankar Roy Choudhury, Volker Bromm +1
We compare model results from a semi-analytic (merger-tree based) framework for high-redshift (z ~ 5-20) galaxy formation against reionization indicators, including the Planck elec…
The X-ray spectra of the first galaxies: 21cm signatures
Fabio Pacucci, Andrei Mesinger, Stefano Mineo +1
The cosmological 21cm signal is a physics-rich probe of the early Universe, encoding information about both the ionization and the thermal history of the intergalactic medium (IGM)…
Focusing on Warm Dark Matter with Lensed High-redshift Galaxies
Fabio Pacucci, Andrei Mesinger, Zoltan Haiman
We propose a novel use of high-redshift galaxies, discovered in deep Hubble Space Telescope (HST) fields around strong lensing clusters. These fields probe small comoving volumes (…