Detections of neutron stars in binaries through gravitational
waves offer a novel way to probe the properties of extremely dense
matter. In this talk I will describe the properties of the signals
we have observed, what they have already taught us...
The classical perspective of astrophysical discs models them as
being flat, circular and coplanar. However, a wealth of
observational evidence has highlighted the ubiquity of warped
geometries in a variety of contexts. This has motivated
theoretical...
This is an exciting time for stellar astrophysics as
high-cadence time domain surveys (Gaia, PTF, ZTF, ATLAS, Kepler,
TESS, and, in the near future, the Vera Rubin Observatory) are
revolutionizing the landscape of stellar studies by allowing
the...
Fast inward migration of planetary cores embedded in gaseous
disks is a common problem in the current planet formation paradigm.
Even though dust is ubiquitous in protoplanetary disks, its
dynamical role in the migration history of planetary embryos...
Driven by gravity, galaxies continuously grow through accretion
of smaller systems. Stellar streams are nice illustrations of this
hierarchical build-up, but the accreted stars quickly disperse. I
will present advanced dynamical models that can...
Data from ESA’s Gaia mission is already revolutionizing Galactic
astronomy, providing an unprecedented view of the Solar
neighborhood and beyond. However, while it provides us a great
opportunity to transform our understanding of the Milky Way,
it...
Weak gravitational lensing imprints a coherent distortion onto
the observed shapes of distant galaxies. At the image level, this
gravitational shear is degenerate with the intrinsic shape of
galaxies, and the weak lensing signal-to-noise from an...
Tidal disruption events (TDEs) provide an exciting opportunity
to study supermassive black holes (SMBHs) in quiescent galaxies and
the stellar populations and dynamics in galactic nuclei. They test
the limits of black hole accretion by regularly...
