Astrophysics

All large-scale structure cosmologists are faced with the question: how do we robustly extract cosmological information, such as on dark energy, gravity, and inflation, from observed tracers such as galaxies whose astrophysics is extremely complex...

Abstract: I will present upcoming linear and non-linear stability results concerning the asymptotic behavior of collisionless many-particle systems on black hole exteriors. On the one hand, I will discuss the decay properties of massive Vlasov...

A signal of Local Primordial non-Gaussianity (LPNG) in the cosmological density field heralds the presence of multiple fields in the inflationary era. Optical and NIR galaxy surveys will soon exceed the sensitivity of the Cosmic Microwave Background...

Planetary-scale magnetic fields provide a unique window into a planet's deep interior. From the magnetic field of Earth to that of Jupiter, the existence of such fields is tied to the presence of an electrically conductive convecting fluid (dynamo...

Each week, we hold a relatively informal seminar/discussion series with an emphasis on extra-galactic and large-scale structure astrophysics.

During Galread a leader/visitor presents a recent paper to the discussion group. The PDF of the paper is...

Galaxy clusters undergoing mergers host spectacular megaparsec-scale, highly polarized diffuse radio emission known as radio relics. With their enormous extent, these sources trace the largest particle accelerators in the Universe. Relics are...

TBA

Abstract: More than twenty years ago, in an experiment at Brookhaven National Laboratory, physicists detected what seemed to be a discrepancy between measurements of the muon’s magnetic moment and theoretical calculations of what that measurement...

Mass is the most fundamental stellar parameter of stars. The mass of a star largely determines its stellar structure, surface temperature, luminosity, chemical evolution, lifetime, and its ultimate fate. However, robust stellar mass measurements are...

Collider experiments have proven themselves immensely useful in studying the behavior of fundamental particles such as quarks and gluons. The last few years in particular have seen a push towards an exploration of QCD, that has hitherto been...