Implications of Solar Wind Charge-Exchange 14 keV emission on the Local Bubble hot gas in the galactic disk

Dimitra Koutroumpa (1) , Rosine Lallement (1) , J.C. Raymond (2) , V. Kharchenko (2)

1 SA - Service d'aéronomie
2 CfA - Harvard-Smithsonian Center for Astrophysics

We present calculations of the heliospheric solar wind charge exchange (SWCX) emission spectra below 0.3 keV that we compare with the soft X-ray diffuse background (SXRB) emission detected in front of identified shadowing regions during the ROSAT All-Sky Survey. We discuss combinations of SWCX spectra and thermal emission in an attempt to match the observed X-ray fluxes and band ratios, while simultaneously being compatible with FUSE O VI emission measurements

Domaines: Astrophysique stellaire et solaire [astro-ph.SR]; Astrophysique stellaire et solaire [astro-ph.SR]

Dimitra Koutroumpa, Rosine Lallement, J.C. Raymond, V. Kharchenko. Implications of Solar Wind Charge-Exchange 14 keV emission on the Local Bubble hot gas in the galactic disk. Future directions in ultraviolet spectroscopy: A Conference Inspired by the Accomplishments of the Far Ultraviolet Spectroscopic Explorer Mission, Oct 2008, Annapolis (Maryland, United States. pp.116-118, ⟨10.1063/1.3154029⟩. ⟨hal-00392354⟩