1.4k citations · 42.7k across the 723 of their papers we have counts for
7 papers · 2 filters
Resolved Magnetic-Field Structure and Variability Near the Event Horizon of Sagittarius A*
Michael D. Johnson, Vincent L. Fish, Sheperd S. Doeleman +45
Near a black hole, differential rotation of a magnetized accretion disk is thought to produce an instability that amplifies weak magnetic fields, driving accretion and outflow. The…
Inferring the Distances of Fast Radio Bursts Through Associated 21-cm Absorption
Ben Margalit, Abraham Loeb
The distances of Fast Radio Burst (FRB) sources are currently unknown. We show that the 21-cm absorption line of hydrogen can be used to infer the redshifts of FRB sources, and det…
Inferring the composition of super-Jupiter mass companions of pulsars with radio line spectroscopy
Alak Ray, Abraham Loeb
We propose using radio line spectroscopy to detect molecular absorption lines (such as OH at 1.6-1.7 GHz) before and after the total eclipse of black widow (BW) and other short orb…
Detection of Gravitational Wave Emission by Supermassive Black Hole Binaries Through Tidal Disruption Flares
Kimitake Hayasaki, Abraham Loeb
Galaxy mergers produce supermassive black hole binaries, which emit gravitational waves prior to their coalescence. We perform three-dimensional hydrodynamic simulations to study t…
Mapping the Dynamics of Cold Gas around Sgr A* through 21 cm Absorption
Pierre Christian, Abraham Loeb
The presence of a circumnuclear stellar disk around Sgr A* and megamaser systems near other black holes indicates that dense neutral disks can be found in galactic nuclei. We show…
Optical inverse-Compton emission from clusters of galaxies
Ryo Yamazaki, Abraham Loeb
Shocks around clusters of galaxies accelerate electrons which upscatter the Cosmic Microwave Background photons to higher-energies. We use an analytical model to calculate this inv…