Probing Dark Matter with Future Spectroscopic Surveys
by
Karl Mannheim
→
Europe/Stockholm
FA32
FA32
Description
The rich inventory of astrophysical sources at the electroweak
symmetry-breaking scale renders the detection of radiative signatures of
dark matter difficult, i.e. a background-free measurement seems unfeasible.
The correlated signatures at different photon energies due to the prompt pion
decay and the secondary inverse Compton and synchrotron radiation may help to
disentangle dark matter annihilation from astrophysical sources. Since dark
matter is a blend of hot and cold, and possibly warm, components, future
spectroscopic galaxy surveys will play an important role in improving our
understanding of dark matter. Unbiased by the baryonic mass distribution, the
large-scale velocity fields of galaxies encode the crucial information on
potential gradients on cosmological scales, and are thus highly sensitive on
the dark matter distribution.
