Fast Radio Bursts are a recently discovered phenomenon
consisting of brief (typically few millisecond) bursts of radio
waves coming from far outside our Milky Way galaxy, indeed from
cosmological distances. Their origin is unknown. I will
review...
Abstract: It is well known that the study and
observation of core collapse Supernovae provide powerful tools to
probe possible scenarios of physics beyond the Standard Model (SM).
In this seminar, I will provide an overview of the
mechanisms...
Recent uncalibrated supernova measurements from Pantheon+, DES
Y5, and Union3 tend to prefer high values of the fractional matter
density, Omega_m, relative to CMB + BAO data or even Pantheon
supernova constraints. This preference has important...
I will present a combination of three observational
techniques—astrometry, radial velocity, and direct imaging—to
discover, weigh, and characterize massive exoplanets and brown
dwarfs. Only a few exoplanets have both measured masses (from
radial...
Abstract: We present a wholly self-consistent,
complete cyclic bouncing cosmology based on components drawn from
string theory and constructed in a way that is under perturbative
control throughout (e.g., with temperatures well below the
string...
Hot Jupiters can form through high-eccentricity tidal migration,
where primordial Jovian planets are driven to near-unity
eccentricities and then tidally circularized into short-period
orbits. This pathway is well-studied in three-body systems...
