BEGIN:VCALENDAR VERSION:2.0 PRODID:Data::ICal 0.22 BEGIN:VEVENT DESCRIPTION:Theo O'Neill\, UVA\n\n
Our sol
ar system is embedded in the Local Bubble\, an expanding\, 1\,000-light-ye
ar-wide cavity in the interstellar medium (ISM). \; The Bubble was cre
ated ~14 million years ago by a chain of supernova explosions that drove o
ut most of the diffuse dust and gas in the nearby ISM. \; Recent work
mapping the 3D shape and dynamics of the Local Bubble has revealed that ne
arly all recent star formation within
\n200 pc of the Sun was trigger
ed by the Bubble'\;s rapid expansion. \; The exact mechanics of thi
s expansion\, and the role that magnetic fields in the ISM have played in
regulating its evolution\, is not yet clear. \; By combining detailed
models of the Bubble&rsquo\;s geometry (derived from 3D dust
\nmappin
g) with Planck dust polarization observations and the assumption that magn
etic field vectors are tangent to the Bubble&rsquo\;s surface\, we are abl
e to infer the Bubble&rsquo\;s 3D magnetic field orientation. \; This
map is the first to fully chart magnetic fields over an observed superbubb
le in 3D. \; We analyze the relationship between the Local Bubble&rsqu
o\;s magnetic field and background starlight polarimetry observations\, an
d discuss how magnetic fields may have affected the dynamics of the Local
Bubble and progression of nearby star formation.