Speaker
Dr
Priscilla Frisch
(University of Chicago)
Description
Similar directions are obtained for the local interstellar magnetic
field (ISMF) by comparing diverse data that sample five orders of
magnetic in spatial scales. The direction of the ISMF that shapes the
heliosphere, and that is traced by the ribbon of energetic neutral
atoms discovered by the Interstellar Boundary Explorer (IBEX) mission,
is compared to the ISMF direction obtained from linearly polarized
light from nearby stars, the ISMF of the Loop I superbubble that has
expanded to the solar vicinity, and the ISMF direction towards pulsars
within 100-300 pc. Together these data suggest that the local ISMF
direction is correlated over spatial scales of about 100 pc, such as
would be expected for the interarm region of the galaxy.
