Most of the power from an Active Galactic Nucleus is released
close to the black hole, and thus studying accretion at event
horizon scales—at the intersection of inflow and outflow—is
essential for understanding how much matter accretes and
grows...
Gravitational waves offer a unique window for probing gravity in
the most dynamical regime. In particular, the ringdown of an
astrophysical black hole encodes information about the properties
of the remnant and the progenitor binary. In this talk, I...
Abstract: In gravity, spacelike separated
regions can be dependent on each other due to the constraint
equations. I my talk, I will propose a natural definition of
subsystem independence in classical gravity. Next, I show
that extremal surfaces...
Accretion-powered X-ray Pulsars (XRPs) are strongly magnetized
neutron stars (NSs), that accrete matter from a donor companion
star, often exhibiting a cyclotron resonant scattering feature
(CRSF) in their X-ray spectra. Accretion onto their...
Circumbinary discs around young stars have been observed to be
misaligned to the binary orbital plane. A misaligned circumbinary
gas disc evolves towards one of two states: alignment with the
binary orbital plane or polar alignment where the disc is...
In this presentation, we will explore how laboratory magnetized
plasma can help us uncover key questions of space physics and space
exploration, including spacecraft heat shield performance,
energetic electron transport during geomagnetic storms...