1.4k citations · 42.7k across the 723 of their papers we have counts for
15 papers · 2 filters
Reionization on Large Scales III: Predictions for Low-ell Cosmic Microwave Background Polarization and High-ell Kinetic Sunyaev-Zel'dovich Observables
Nick Battaglia, Aravind Natarajan, Hy Trac +2
We present new predictions for temperature (on small angular scales) and polarization (on large angular scales) CMB anisotropies induced during the epoch of reionization (EoR). Usi…
Reionization on Large Scales I: A Parametric Model Constructed from Radiation-Hydrodynamic Simulations
Nick Battaglia, Hy Trac, Renyue Cen +1
We present a new method for modeling inhomogeneous cosmic reionization on large scales. Utilizing high-resolution radiation-hydrodynamic simulations with 2048^3 dark matter particl…
Global 21cm signal experiments: A designer's guide
Adrian Liu, Jonathan R. Pritchard, Max Tegmark +1
[Abridged] The spatially averaged global spectrum of the redshifted 21cm line has generated much experimental interest, for it is potentially a direct probe of the Epoch of Reioniz…
Reionization on Large Scales II: Detecting Patchy Reionization through Cross Correlation of the Cosmic Microwave Background
Aravind Natarajan, Nick Battaglia, Hy Trac +2
We investigate the effect of patchy reionization on the cosmic microwave background temperature. An anisotropic optical depth tau (theta) alters the TT power spectrum on small scal…
Preliminary evidence for a virial shock around the Coma galaxy cluster
Uri Keshet, Doron Kushnir, Abraham Loeb +1
Galaxy clusters, the largest gravitationally bound objects in the Universe, are thought to grow by accreting mass from their surroundings through large-scale virial shocks. Due to…
A suppressed contribution of low mass galaxies to reionization due to supernova feedback
Stuart Wyithe, Abraham Loeb
Motivated by recent observations of the star formation rate density function out to z~7, we describe a simple model for the star formation rate density function at high redshift ba…
Unbound Particles in Dark Matter Halos
Peter S. Behroozi, Abraham Loeb, Risa H. Wechsler
We investigate unbound dark matter particles in halos by tracing particle trajectories in a simulation run to the far future (a = 100). We find that the traditional sum of kinetic…
Probing Pre-galactic Metal Enrichment with High-Redshift Gamma-Ray Bursts
F. Y. Wang, Volker Bromm, Thomas H. Greif +4
We explore high-redshift gamma-ray bursts (GRBs) as promising tools to probe pre-galactic metal enrichment. We utilize the bright afterglow of a Pop III GRB exploding in a primordi…
A Simple Model for the Density Profiles of Isolated Dark Matter Halos
Eli Visbal, Abraham Loeb, Lars Hernquist
We explore the possibility that the density profiles of elliptical galaxies and cold dark matter (CDM) halos found in cosmological simulations can be understood in terms of the sam…
Chandra High resolution Observations of CID-42, a candidate recoiling SMBH
F. Civano, M. Elvis, G. Lanzuisi +15
We present Chandra High Resolution Camera observations of CID-42, a candidate recoiling supermassive black hole (SMBH) at z=0.359 in the COSMOS survey. CID-42 shows two optical com…
Constraints on the Nature of CID-42: Recoil Kick or Supermassive Black Hole Pair?
Laura Blecha, Francesca Civano, Martin Elvis +1
The galaxy CXOC J100043.1+020637, also known as CID-42, is a highly unusual object. An apparent galaxy merger remnant, it displays signatures of both an inspiraling, kiloparsec-sca…
The Origin of the Microlensing Events Observed Towards the LMC and the Stellar Counterpart of the Magellanic Stream
Gurtina Besla, Lars Hernquist, Abraham Loeb
We introduce a novel theoretical model to explain the long-standing puzzle of the nature of the microlensing events reported towards the Large Magellanic Cloud (LMC) by the MACHO a…
The Optimal Cosmic Epoch for Precision Cosmology
Abraham Loeb
The statistical uncertainty in measuring the primordial density perturbations on a given comoving scale is dictated by the number of independent regions of that scale that are acce…
Early structure formation from cosmic string loops
Benjamin Shlaer, Alexander Vilenkin, Abraham Loeb
We examine the effects of cosmic strings on structure formation and on the ionization history of the universe. While Gaussian perturbations from inflation are known to provide the…
Double-peaked Narrow-Line Signatures of Dual Supermassive Black Holes in Galaxy Merger Simulations
Laura Blecha, Abraham Loeb, Ramesh Narayan
We present a first attempt to model the narrow-line (NL) region of active galactic nuclei (AGN) in hydrodynamic simulations of galaxy mergers, using a novel physical prescription.…