2k citations · 4.1k across the 32 of their papers we have counts for
32 papers
Rimmed and Rippled Accretion Disc Models to Explain AGN Continuum Lags
D. A. Starkey, Jiamu Huang, Keith Horne +1
We propose a solution to the problem of accretion disc sizes in active galactic nuclei being larger when measured by reverberation mapping than predicted by theory. Considering bla…
Fast Radio Burst Tomography of the Unseen Universe
Vikram Ravi, Nicholas Battaglia, Sarah Burke-Spolaor +13
The discovery of Fast Radio Bursts (FRBs) at cosmological distances has opened a powerful window on otherwise unseen matter in the Universe. In the 2020s, observations of …
Hubble Space Telescope photometry of multiple stellar populations in the inner parts of NGC 2419
S. S. Larsen, H. Baumgardt, N. Bastian +2
We present new deep imaging of the central regions of the remote globular cluster NGC 2419, obtained with the F343N and F336W filters of HST/WFC3. The new data are combined with ar…
Imprints of the first billion years: Lyman limit systems at
Neil H. M. Crighton, J. Xavier Prochaska, Michael T. Murphy +3
Lyman Limit systems (LLSs) trace the low-density circumgalactic medium and the most dense regions of the intergalactic medium, so their number density and evolution at high redshif…
The Astrophysical Consequences of Intervening Galaxy Gas on Fast Radio Bursts
J. Xavier Prochaska, Marcel Neeleman
We adopt and analyze results on the incidence and physical properties of damped Ly systems (DLAs) to predict the astrophysical impact of gas in galaxies on observations of Fast…
Quasar Quartet Embedded in Giant Nebula Reveals Rare Massive Structure in Distant Universe
Joseph F. Hennawi, J. Xavier Prochaska, Sebastiano Cantalupo +1
All galaxies once passed through a hyperluminous quasar phase powered by accretion onto a supermassive black hole. But because these episodes are brief, quasars are rare objects ty…