I will present the cosmological weak lensing results from the
Dark Energy Survey (DES) using its first three years of data, taken
on the 4m Blanco telescope at CTIO. This analysis spans the full
DES footprint, more than 4000 sq. deg. of sky, with...
Astrometry from Gaia, deep variability surveys and large-area
Galactic spectroscopic surveys are enabling novel probes into white
dwarf astrophysics, and in particular are allowing us to tackle
anew the search for ultra-compact binaries containing...
GW170817 heralded the opening of multimessenger astronomy. To
predict or interpret gravitational wave sources, numerical
modeling, in particular, numerical relativity is a unique and
viable tool. In this talk, I will present the current status
of...
Magnetism has been in the forefront in our understandings of
protoplanetary disks (PPD) and planet formation. With the
prevalence of disk substructures, a major observational revolution
over the past few years, PPDs are now considered as “planet...
Cosmic rays, the relativistic component of diffuse astrophysical
plasma, exchange energy and momentum with the thermal gas
collisionlessly, mediated by the ambient magnetic field. Some but
not all models of this interaction show that cosmic rays can...
Polycyclic Aromatic Hydrocarbons (PAHs) have been implicated as
a large reservoir of reactive carbon in the interstellar medium
since the 1980s. PAHs have been widely attributed as the carriers
of the unidentified infrared bands where their...
The Gaia mission and its data releases are driving a revolution
in our understanding of the Milky Way and its constituents. In this
talk, I will highlight a few of the results stemming from the
analysis of the truly spectacular datasets produced so...
Compact mass-spring models can measure remarkably small
deformations while conserving angular momentum. We use them within
an N-body code to simulate tidal evolution of viscoelastic spinning
objects, tying simulated rheology to spin dynamics...
I will present a recent numerical study on the generation and
the amplification of magnetic fields in the Universe. Through
cosmological simulations of galaxy formation, we have studied the
Biermann battery process that drives microscopic current...
