523 citations · 2.5k across the 23 of their papers we have counts for
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The imprint of the cosmic supermassive black hole growth history on the 21 cm background radiation
Takamitsu L. Tanaka, Ryan M. O'Leary, Rosalba Perna
The redshifted 21 cm transition line of hydrogen tracks the thermal evolution of the neutral intergalactic medium (IGM) at "cosmic dawn," during the emergence of the first luminous…
The impact of the supersonic baryon-dark matter velocity difference on the z~20 21cm background
Matthew McQuinn, Ryan M. O'Leary
Recently, Tseliakhovich and Hirata (2010) showed that during the cosmic Dark Ages the baryons were typically moving supersonically with respect to the dark matter with a spatially…
The formation of the first cosmic structures and the physics of the z~20 Universe
Ryan M. O'Leary, Matthew McQuinn
We perform a suite of cosmological simulations in the LCDM paradigm of the formation of the first structures in the Universe prior to astrophysical reheating and reionization (15<~…
Recoiled star clusters in the Milky Way halo: N-body simulations and a candidate search through SDSS
Ryan M. O'Leary, Abraham Loeb
During the formation of the Milky Way, > 100 central black holes (BHs) may have been ejected from their small host galaxies as a result of asymmetric gravitational wave emission. W…