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8 papers · 2 filters
Explaining the statistical properties of Fast Radio Bursts with suppressed low-frequency emission
Vikram Ravi, Abraham Loeb
The possibility of Fast Radio Burst (FRB) emission being suppressed at low frequencies, resulting in a cutoff of the average rest-frame spectrum, has been raised as an explanation…
Formation Redshift of the Massive Black Holes Detected by LIGO
Razieh Emami, Abraham Loeb
We compare the event rate density detected by LIGO to the comoving number density of isolated stellar progenitors and find a range for their formation redshift. Our limit depends o…
Redshift Evolution of the Black Hole Merger Rate from Globular Clusters
Carl L. Rodriguez, Abraham Loeb
As the sensitivity of current and future gravitational-wave detectors improves, it will become possible to measure the evolution of the binary black hole merger rate with redshift.…
Shock Breakouts from Tidal Disruption Events
Almog Yalinewich, James Guillochon, Re'em Sari +1
Tidal disruption events of stars by supermassive black holes have so far been discovered months to years after the fact. In this paper we explore the short, faint and hard burst of…
Detecting the Orbital Motion of Nearby Supermassive Black Hole Binaries with Gaia
Daniel J. D'Orazio, Abraham Loeb
We show that a 10 year Gaia mission could astrometrically detect the orbital motion of ~1 sub-parsec separation supermassive black hole binary in the heart of nearby, bright active…
Constraining the Stellar Mass Function from the Deficiency of Tidal Disruption Flares in the Nuclei of Massive Galaxies
Daniel J. D'Orazio, Abraham Loeb, James Guillochon
The rate of tidal disruption flares (TDFs) per mass of the disrupting black hole encodes information on the present-day mass function (PDMF) of stars in the clusters surrounding su…