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Heating and scattering of stellar distributions by ultralight dark matter
Andrew Eberhardt, Mateja Gosenca, Lam Hui
Due to wave interference, an ultralight light dark matter halo has stochastic, granular substructures which can scatter stars, leading to the heating of stellar distributions. Stud…
Caustic fringes for wave dark matter
Andrew Eberhardt, Lam Hui
Wave dark matter is composed of particles sufficiently light that their de Broglie wavelength exceeds the average inter-particle separation. A typical wave dark matter halo exhibit…
Massive-ish Particles from Small-ish Scales: Non-Perturbative Techniques for Cosmological Collider Physics from Large-Scale Structure Surveys
Samuel Goldstein, Oliver H. E. Philcox, J. Colin Hill +1
Massive particles produced during inflation impact soft limits of primordial correlators. Searching for these signatures presents an exciting opportunity to uncover the particle sp…
Consistently constraining with the squeezed lensing bispectrum using consistency relations
Samuel Goldstein, Oliver H. E. Philcox, J. Colin Hill +2
We introduce a non-perturbative method to constrain the amplitude of local-type primordial non-Gaussianity () using squeezed configurations of the CMB lensing convergen…