Conveners
DE: Cosmic Physics and Dark Energy, Inflation, and Strong-Field Gravity: CMB and Gravitational Waves
- Simone Ferraro (Lawrence Berkeley National Laboratory)
- Kyle Dawson (University of Utah)
DE: Cosmic Physics and Dark Energy, Inflation, and Strong-Field Gravity: Modeling Large-Scale Structure
- Simone Ferraro (Lawrence Berkeley National Laboratory)
- Kyle Dawson (University of Utah)
Description
Cosmic Physics and Dark Energy, Inflation, and Strong-Field Gravity
The Cosmic Microwave Background (CMB) provides us both with a snapshot of the early Universe and with a backlight that illuminates all the later-developing structure. The statistics of this light provide an avenue to detect beyond-the-standard-model physics from inflationary gravitational waves or light relic particles. The growth of large-scale structure, measured by gravitational lensing...
Gravitational lensing of the cosmic microwave background is a powerful probe of the distribution of matter in the post-recombination Universe. Combining CMB lensing with galaxy surveys at different redshifts provides a tomographic view of the growth of structure, improving cosmological constraints. Using Planck CMB lensing and unWISE infrared galaxies, we find $S_8 \equiv \sigma_8...
Gravitational waves from black holes and neutron stars are standard candles, the only input needed to infer their luminosity distance being Einstein's general theory of relativity. Combined with follow-up electromagnetic observations to measure the redshift of their hosts will provide a precision tool for calibration-free cosmology. Over the next decade we can expect the current generation of...
In this talk, I will discuss our recent analysis of the BOSS power spectrum monopole and quadrupole, and the bispectrum monopole and quadrupole data, using the predictions from the Effective Field Theory of Large-Scale Structure (EFTofLSS). Specifically, we use the one-loop prediction for the power spectrum and the bispectrum monopole, and the tree level for the bispectrum quadrupole. After...
In the standard cosmological paradigm, the initial condition follows Gaussian statistics. At later times, gravitational evolution induces nonlinearities in the large-scale structure, and information that had been fully captured by the two-point statistics gets spread into higher-order statistics. In this talk, I will present our recent progress on the N-point Correlation Function (NPCF) for N...
Recently we have shown that the galaxy 4-point correlation function, which measures an excess of quartets of galaxies over random, is sensitive to parity violation in our universe’s large scale structure. It is fundamentally 3d and thus has a handedness even after applying isotropy, in contrast to galaxy pair and triplet correlations. With this new observable we have detected parity violation...
Abstract ––a 35 minute presentation plus time for Q & A
Evidence of dark energy found on earth is commonplace. Just strike a match and the atom electrons fueled by dark energy drive light photons out instantaneously at 186,282 miles per second.
That power source is an energy currently undetected by any sensing instruments known beyond our own eyesight. Further, that energy exercise is...
