Loading...
THE STRUCTURE OF THE LOCAL HOT BUBBLE
Liu, W. Chiao, Meng P. Collier, Michael R. Cravens, Thomas Edward Galeazzi, Mauro Koutroumpa, D. Kuntz, K. D. Lallement, R. Lepri, S. T. McCammon, D.
Liu, W.
Chiao, Meng P.
Collier, Michael R.
Cravens, Thomas Edward
Galeazzi, Mauro
Koutroumpa, D.
Kuntz, K. D.
Lallement, R.
Lepri, S. T.
McCammon, D.
Citations
Altmetric:
Abstract
Diffuse X-rays from the Local Galaxy (DXL) is a sounding rocket mission designed to quantify and characterize the contribution of Solar Wind Charge eXchange (SWCX) to the Diffuse X-ray Background and study the properties of the Local Hot Bubble (LHB). Based on the results from the DXL mission, we quantified and removed the contribution of SWCX to the diffuse X-ray background measured by the ROSAT All Sky Survey. The "cleaned" maps were used to investigate the physical properties of the LHB. Assuming thermal ionization equilibrium, we measured a highly uniform temperature distributed around kT = 0.097 keV ± 0.013 keV (FWHM) ± 0.006 keV (systematic). We also generated a thermal emission measure map and used it to characterize the three-dimensional (3D) structure of the LHB, which we found to be in good agreement with the structure of the local cavity measured from dust and gas.
Description
Date
2016-12-28
Journal Title
Journal ISSN
Volume Title
Publisher
American Astronomical Society
Collections
Research Projects
Organizational Units
Journal Issue
Keywords
ISM: bubbles, ISM: structure, X-rays: diffuse background, X-rays: ISM
Citation
W. Liu et al 2017 ApJ 834 33