1.4k citations · 42.7k across the 723 of their papers we have counts for
13 papers · 2 filters
Escape of Ionizing Radiation from High-Redshift Galaxies
Kenneth Wood, Abraham Loeb
We use a three-dimensional radiation transfer code to calculate the steady-state escape fraction of ionizing photons from disk galaxies as a function of redshift and galaxy mass. T…
Variability of GRB Afterglows Due to Interstellar Turbulence
Xiaohu Wang, Abraham Loeb
Gamma-Ray Burst (GRB) afterglows are commonly interpreted as synchrotron emission from a relativistic blast wave produced by a point explosion in an ambient medium, plausibly the i…
The First Sources of Light in the Universe
Abraham Loeb
The formation of the first stars and quasars marks the transition between the smooth initial state and the clumpy current state of the Universe. In popular CDM cosmologies, the fir…
Radio Detection of Old GRB Remnants in the Local Universe
Eric Woods, Abraham Loeb
We investigate the hydrodynamic evolution of Gamma--Ray Burst (GRB) remnants at late times (>> 1 year), by extending the standard fireball model into the nonrelativistic Sedov--Tay…
High-Redshift Galaxies: Their Predicted Size and Surface Brightness Distributions and Their Gravitational Lensing Probability
Rennan Barkana, Abraham Loeb
Direct observations of the first generation of luminous objects will likely become feasible over the next decade. The advent of the Next Generation Space Telescope (NGST) will allo…
Generation of Magnetic Fields in the Relativistic Shock of Gamma-Ray-Burst Sources
Mikhail V. Medvedev, Abraham Loeb
We show that the relativistic two-stream instability can naturally generate strong magnetic fields with 1e-5 - 1e-1 of the equipartition energy density, in the collisionless shocks…
X-Ray Emission from the First Quasars
Zoltan Haiman, Abraham Loeb
It is currently unknown whether the Universe was reionized by quasars or stars at z>5. We point out that quasars can be best distinguished from stellar systems by their X-ray emiss…
Identifying Gamma-Ray Burst Remnants in Nearby Galaxies
Rosalba Perna, John Raymond, Abraham Loeb
We study the spectral signatures arising from cooling and recombination of an interstellar medium whose equilibrium state has been altered over \sim 100 pc by the radiation of a Ga…
Constraints on Off-Axis X-Ray Emission from Beamed GRBs
Eric Woods, Abraham Loeb
We calculate the prompt x-ray emission as a function of viewing angle for beamed Gamma-Ray Burst (GRB) sources. Prompt x-rays are inevitable due to the less highly blueshifted phot…
Polarization of the \lya Halos Around Sources Before Cosmological Reionization
George B. Rybicki, Abraham Loeb
In Loeb & Rybicki (1999; paper I) it was shown that before reionization, the scattering of \lya photons from a cosmological source might lead to a fairly compact () \lya…
Probing Red Giant Atmospheres with Gravitational Microlensing
David Heyrovsky, Dimitar Sasselov, Abraham Loeb
Gravitational microlensing provides a new technique for studying the surfaces of distant stars. Microlensing events are detected in real time and can be followed up with precision…
Scattered Lyman-alpha Radiation Around Sources Before Cosmological Reionization
Abraham Loeb, George Rybicki
The spectra of the first galaxies and quasars in the Universe should be strongly absorbed shortward of their rest-frame Lyman-alpha wavelength by neutral hydrogen (HI) in the inter…
The Photo-Evaporation of Dwarf Galaxies During Reionization
Rennan Barkana, Abraham Loeb
During the period of reionization the Universe was filled with a cosmological background of ionizing radiation. By that time a significant fraction of the cosmic gas had already be…