Astrophysics Seminars

I will explore the "Elusive Universe," where dark matter, neutrinos, and gravity sculpt our observed nature, leaving many open questions.
My work focuses on opening up new directions to answer these puzzles. I will present two approaches:
1) Using...

Centers of galaxies are fertile environments for a variety of dynamical processes, owing to the high density of stars and the presence of a central supermassive black hole. Stars may occasionally be deflected onto a deadly trajectory, passing too...

When a globular cluster or a dwarf galaxy is tidally disrupted due to its host galactic potential, the unbound stars assemble into coherent filamentary structures known as stellar streams. Given the ordered nature of their dynamical formation...

Astrophysical black holes are surrounded by accretion disks, jets, and coronae consisting of magnetized, (near)-collisionless relativistic plasma. They produce observable high-energy radiation and it is currently unclear where and how this emission...

Merging binary neutron stars are an important class of sources for advanced gravitational wave (GW) detectors such as LIGO and VIRGO, as well as for searches for transient astronomical events. In this talk, I will discuss two aspects of the GW...

Extracting information from stochastic fields is a ubiquitous task in science. However, from cosmology to biology, it tends to be done either through a power spectrum analysis, which is often too limited, or the use of convolutional neural networks...

The discovery of high-energy cosmic neutrinos opened a new window of astroparticle physics. Their origin is a new mystery in the field, which is tightly connected to the long-standing puzzle about the origin of cosmic rays. I will discuss...

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...

Current observations in black-hole astronomy could offer new pathways to constrain deviations from General Relativity. This includes tests of black-hole uniqueness, black-hole stability, and corrections at strong curvature.

• The uniqueness...

Super star clusters with masses > 1e6 Msun are thought to be progenitors of globular clusters (GCs). Their births however are seldomly seen in the local Universe. Given radiation and kinetic feedbacks that regulate star formation, contribution to...