THE STRUCTURE OF THE LOCAL HOT BUBBLE
- Department of Physics, University of Miami, Coral Gables, FL, 33124 (United States)
- NASA Goddard Space Flight Center, Greenbelt, MD, 20771 (United States)
- Department of Physics and Astronomy, University of Kansas, Lawrence, KS 66045 (United States)
- Universite Versailles St-Quentin (France)
- The Henry A. Rowland Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218 (United States)
- GEPI Observatoire de Paris, CNRS, Universite Paris Diderot, F-92190, Meudon (France)
- Department of Atmospheric, Oceanic, and Space Sciences, University of Michigan, Ann Arbor, MI 48109 (United States)
- Department of Physics, University of Wisconsin, Madison, WI 53706 (United States)
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.
- OSTI ID:
- 22661410
- Journal Information:
- Astrophysical Journal, Vol. 834, Issue 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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