Joint Astrophysics/Space Physics Seminar - Mr. Jesse Bluem; Department of Physics & Astronomy; The University of Iowa "A HaloSat Analysis of the Cygnus Superbubble"

September 9, 2020 - 3:30pm to 4:30pm
via Zoom

Zoom ID 939 5758 0565

Mr. Jesse Bluem 

Department of Physics & Astronomy 

The University of Iowa

"A HaloSat Analysis of the Cygnus Superbubble"

Abstract: 

The Cygnus Superbubble (CSB) is a large region of soft X-ray emission in the direction of the local
spiral arm. This region is approximately 450 parsecs in diameter. Such a large region might be the
result of strong stellar winds and supernova from nearby stellar nurseries, or it could be the result of a
single event - a hypernova. To differentiate between these two scenarios, it is important to understand
if the CSB is a line of sight composite of multiple discrete regions or a cohesive object. Determining
this is complicated due to the complex observational environment of the local spiral arm. HaloSat
observed the entire CSB region in 4 primary sections in the 0.4-7.0 keV band, with a wide field of view.
Spectra obtained were fit in XSPEC to find temperatures and absorptions for each field. Consistent
absorptions and temperatures were found across the CSB, supporting the CSB being a cohesive object
with a singular origin.

Jesse Bluem