Stellar streams, the tidal remnants of globular clusters and
dwarf galaxies orbiting throughout the Milky Way’s halo, are some
of the most powerful tools in the study of near-field cosmology. In
particular, they are sensitive probes of the...
X-ray binaries are known to exhibit different spectral states
which are associated with different black hole accretion modes. In
particular the geometry of the hot accretion flow in hard spectral
state is still not fully understood. Recent...
Many of the astrophyiscal processes that shape galaxies --
stellar evolution, star formation, feedback into the ISM -- are
fundamentally small-scale. At the typical kiloparsec-scale
resolution of extragalactic observations, we can only see
the...
The Bahcall Lunch follow the astrophysics colloquium lecture.
Registration is required by 6pm the previous Thursday so a meal can
be provided. Email Amanda at cenker@ias.edu with
questions.
I will weave three separate threads. The first will be to
describe recent and ongoing results from the Dark Energy
Spectroscopic Survey. I will present the BAO results from the early
DESI data, and some of the preparatory work for the Year 1 data.
I...
The Sunyaev-Zel’dovich Effect—the Doppler boost of low-energy
Cosmic Microwave Background photons scattering off free
electrons—is an excellent probe of ionized gas residing in distant
galaxies. Its two main constituents are the kinematic SZ
effect...
Abstract: General relativistic ray tracing
and radiative transfer (GRRT) are numerical techniques for
simulating images of black holes. They have played an
instrumental role in both predicting and interpreting the horizon
scale resolution images...
