A5054668544- Pulsars and Gravitational Waves Research
- Gamma-ray bursts and supernovae
- Statistical and numerical algorithms
- Cold Atom Physics and Bose-Einstein Condensates
- Advanced Frequency and Time Standards
- Enzyme Structure and Function
- Atomic and Subatomic Physics Research
- GNSS positioning and interference
- Radio Astronomy Observations and Technology
- Spaceflight effects on biology
- Astrophysical Phenomena and Observations
- Geophysics and Gravity Measurements
University of Toronto
2024
University of California, Berkeley
2024
Massachusetts Institute of Technology
2021-2024
Messerschmitt-Bölkow-Blohm (Germany)
1988
Abstract We describe a pipeline to measure scintillation in fast radio bursts (FRBs) detected by CHIME/FRB the 400–800 MHz band analyzing frequency structure of FRB's spectrum. use characteristic bandwidths between 4–100 kHz 12 FRBs corresponding timescales ∼2–40 μ s for 10 CHIME/FRB. For other two FRBs, we did not detect region our analysis is sensitive. compared measured NE2001 predictions from Milky Way. find strong correlation be an indication that most instances, observed can explained
Fast radio bursts (FRBs) are millisecond-duration, luminous transients of extragalactic origin. These events have been used to trace the baryonic structure Universe using their dispersion measure (DM) assuming that contribution from host galaxies can be reliably estimated. However, contributions immediate environment an FRB may dominate observed DM, thus making redshift estimates challenging without a robust galaxy association. Furthermore, while at least one Galactic burst has associated...
We calculate, via variational techniques, single- and two-photon Rydberg microwave transitions, as well scalar tensor polarizabilities of sodium atom using the parametric one-electron valence potential, including spin-orbit coupling. The trial function is expanded in a basis set optimized Slater-type orbitals, resulting highly accurate converged eigen-energies up to $n=60$. focus our studies on band 90-150 GHz, due its relevance laser excitation Earth's upper-atmospheric layer for...
We calculate, via variational techniques, single- and two-photon Rydberg microwave transitions, as well scalar tensor polarizabilities of the sodium atom using parametric one-electron valence potential, including spin-orbit coupling. The trial function is expanded in a basis set optimized Slater-type orbitals, resulting highly accurate converged eigenenergies up to $n=60$. focus our studies on band 90--150 GHz due its relevance laser excitation Earth's upper-atmospheric layer for...
We describe a pipeline to measure scintillation in fast radio bursts (FRBs) detected by CHIME/FRB the 400-800 MHz band analyzing frequency structure of FRB's spectrum. use characteristic bandwidths between $4-100$ kHz 12 FRBs corresponding timescales $\sim$2-40 $\mu$s for 10 CHIME/FRB. For other two FRBs, we did not detect region our analysis is sensitive. compared measured NE2001 predictions from Milky Way. find strong correlation be an indication that most instances, observed can explained