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...
