Astrophysics

Understanding the physics of living systems allows us to design new materials that are active and adaptive, akin to cells and tissues. Conversely, these active matter systems can reveal fundamental principles in physics and biology. In this talk, I...

Among a handful of mysteries in the LambdaCDM paradigm of cosmology, I focus on three: Dark Matter, Baryogenesis and the origin of structure. I then provide a pedagogical introduction to Chiral Gravity and show how these three mysteries may be...

With upcoming arcminute resolution multi-frequency CMB maps and full-sky galaxy surveys, observables based on the Sunyaev Zeldovich (SZ) effect will constitute a promising avenue for reshaping our understanding of galaxy formation and constraining...

Abstract: One can paraphrase Penrose’s strong cosmic censorship conjecture as stating that general relativity is generically a deterministic theory. While the full conjecture remains wide open there has long been evidence pointing towards its...

The Kepler Mission has revolutionized exoplanet science, with over 2000 confirmed planets to date. However, most exoplanet host stars observed by Kepler are too faint to perform extensive radial-velocity follow-up to precisely measure Doppler semi...

X-ray emission from star-forming galaxies, consisting primarily of emission from accreting black holes and neutron stars (i.e., X-ray binaries) and the hot interstellar medium, is a key tracer of processes like the physics of accretion onto compact...

Abstract: A variety of astrophysical phenomena can only be explained as being powered by black holes. In particular, accreting supermassive black holes are responsible for launching relativistic plasma jets and for accelerating ultra-energetic...

Abstract: Pulsar radio emission may be generated in pair discharges which fill the pulsar magnetosphere with plasma as an accelerating electric field is screened by freshly created pairs. In this talk we present a simplified analytic theory for the...

The intensity mapping (IM) technique has been devised as a powerful tool to investigate the large scale structure and galaxies, alternative and complementary to the more traditional means relying on galaxy detection. In the high-redshift universe...