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Target of Opportunity Observations of Gravitational Wave Events with LSST
R. Margutti, P. Cowperthwaite, Z. Doctor +79
The discovery of the electromagnetic counterparts to the binary neutron star merger GW170817 has opened the era of GW+EM multi-messenger astronomy. Exploiting this breakthrough req…
The Impact of Photometric Redshift Errors on Lensing Statistics in Ray-Tracing Simulations
Matthew W. Abruzzo, Zoltán Haiman
Weak lensing surveys are reaching sensitivities at which uncertainties in the galaxy redshift distributions n(z) from photo-z errors degrade cosmological constraints. We use ray-tr…
Machine learning uncovers new cosmological information
Zoltán Haiman
Large cosmological datasets have been probing the properties of our universe and constraining the parameters of dark matter and dark energy with increasing precision. Deep learning…
H2 self-shielding with non-LTE rovibrational populations: implications for cooling in protogalaxies
J. Wolcott-Green, Z. Haiman
The abundance of molecular hydrogen (H2), the primary coolant in primordial gas, is critical for the thermodynamic evolution and star-formation histories in early protogalaxies. De…
Non-steady-state long-term evolution of supermassive black hole binaries surrounded by accretion discs
Camilo Fontecilla, Zoltán Haiman, Jorge Cuadra
Supermassive black holes (SMBHs) pair and form bound binaries after their host galaxies merge. In a gas-rich merger, accretion discs are expected to form around the binary and its…
Titans of the Early Universe: The Prato Statement on the Origin of the First Supermassive Black Holes
Tyrone E. Woods, Bhaskar Agarwal, Volker Bromm +30
In recent years, the discovery of massive quasars at z~7 has provided a striking challenge to our understanding of the origin and growth of supermassive black holes in the early Un…