Neutrino Wakes


Pen, U. (2014). Neutrino Wakes. Perimeter Institute. https://pirsa.org/14060041


Pen, Ue-Li. Neutrino Wakes. Perimeter Institute, Jun. 06, 2014, https://pirsa.org/14060041


          @misc{ pirsa_PIRSA:14060041,
            doi = {10.48660/14060041},
            url = {https://pirsa.org/14060041},
            author = {Pen, Ue-Li},
            keywords = {Cosmology},
            language = {en},
            title = {Neutrino Wakes},
            publisher = {Perimeter Institute},
            year = {2014},
            month = {jun},
            note = {PIRSA:14060041 see, \url{https://pirsa.org}}

Ue-Li Pen Canadian Institute for Theoretical Astrophysics (CITA)

Talk Type Scientific Series


We identify a new non-linear neutrino wake effect, due to the streaming motions of neutrinos relative to dark matter, analogous to the Tseliakhovich-Hirata effect. We compute the effect in moving background perturbation theory, compare to direct n-body simulations, and forecast its observability in current and future surveys. Depending on neutrino mass, this effect could be observable in upcoming surveys through a cross correlation dipole in lensing and galaxies. Unlike previous cosmological neutrino effects, this depends primarily on neutrino mass, making it complementary to measurements that depend on neutrino density.