The researchers found that the quasar's X-ray emissions had doubled ... the Israel Munson Professor of Physics and Astronomy in Yale's Faculty of Arts and Sciences and co-author of the study.

Potential evidence of negative quasar feedback at protocluster scales, Astronomy & Astrophysics (2024). DOI: 10.1051/0004-6361/202449566 ...

Whether a galactic environment has the right conditions for habitable planets to form could depend on how the black hole in ...

The Schmidt story was not an easy one to report or to write. The world of quasar astronomy is one of nigh-incredible reaches in time, space and imagination. It involves unheard-of distances ...

Abstract: Quasars in the Age of Time-Domain Astronomy: Black hole feeding ... Single-epoch spectroscopy has been a workhorse for building the modern picture of quasar central engines. Extending this ...

Quasar J0742+2704 (center) became the subject of astronomers' interest after it was discovered to have a newborn jet blasting from the disk around its supermassive black hole in 2020, using the ...

and the observations reveal why previous studies seeking to characterize the density of early-Universe quasar neighborhoods have yielded conflicting results.

PhD, Astronomy & Astrophysics, University of Chicago ... how mass and energy ejected from these black holes influence the evolution of galaxies over time, and how large quasar samples may serve as ...

Past work has included constraining cosmology, and models of quasar activity and galaxy formation by analyzing clustering within large surveys of quasars and galaxies, using proximate pairs of quasars ...

Astronomy is arguably the oldest science, and has featured strongly throughout the history of Nature — the first quasar, the first exoplanet, the nature of spiral nebulae, to name but a few of ...

My research interests lie in theoretical astrophysics and UV/X-ray space astronomy. I work on theories of galaxy ... studies of missing baryons in the intergalactic medium, quasar ionizing spectra, ...