Are Milky Way's Disk, Dark matter, and Paleoclimatology related? Yes, though Cosmic rays.

Speaker:Prof. Nir Shaviv
Affiliation:Racah Institute of Physics The Hebrew University
Organizer:Amit Keren
Time:14:30 - 15:30
Location:Lidow Rosen Auditorium (323)

We will review our current understanding of cosmic ray diffusion in the Milky Way disk and its effects on climate, and see that cosmic rays appear to link a swath of seemingly unrelated phenomena once we consider that cosmic ray sources are not distributed symmetrically around the galaxy.  These phenomena include paleoclimate variations from spiral arm passages and the vertical oscillation of the solar system, evidence for dark matter at the galactic disk, an explanation to the positron excess known as the Pamela Anomaly, better understanding of recent climate change and global warming in general, and many more.