We report analytical and numerical investigations of
sub-ion-scale turbulence in low-beta plasmas, focusing on the
spectral properties of the fluctuations and electron heating. In
the isothermal limit, the numerical results strongly support
a...
The aggregate light emitted by all extragalactic sources can be
measured either as an absolute intensity or through its spatial
fluctuations; these are known as line-intensity mapping (LIM) when
a particular line transition is targeted. I will...
Dark matter not only provides the invisible scaffolding from
which the birth of galaxies takes place, but by studying its
distribution in our universe we can infer a great deal of
information regarding the growth of structure and cosmic
expansion...
Abstract: The use of different
perspectives on a problem is a very powerful principle in
statistical physics, and has been especially important in
mathematical physics. I will illustrate this theme with old and
recent applications. These include the...
The collapsar model suggests that when the core of a massive
star exhausts its fuel, it collapses to a black hole which launches
a pair of relativistic jets. Collapsars offer unique opportunities
to study a wide range of cutting-edge astrophysical...
On August 17, 2017, LIGO/Virgo detected the first
gravitational waves from merging neutron stars. This event, known
as GW170817 was accompanied by observations all over the
electromagnetic spectrum. The peculiar gamma-ray burst that
followed the...
