FUV Observations of a Thermal Interface in the Orion-Eridanus Superbubble

Details FUV Observations of a Thermal Interface in the Orion-Eridanus Superbubble FUV Observations of a Thermal Interface in the Orion-Eridanus Superbubble

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.8115k&link_type=abstract

American Astronomical Society Meeting 207, #81.15; Bulletin of the American Astronomical Society, Vol. 37, p.1303

Astronomy and Astrophysics

Astronomy

Scientific paper

Diffuse FUV emission lines have been observed from the shell boundary of the Orion-Eridanus superbubble using the SPEAR imaging spectrometer. We have discovered numerous lines arising from both atomic species including OVI emission, and from molecular hydrogen. Spatial variations in the line intensities of CIV, SiII, and OVI, in comparison with soft X-ray, H-alpha and dust observations, indicate that these ions are associated with processes located at the interface between the hot 106 K gas inside the superbubble and the cooler ambient medium. Thus our observations probe physical conditions for an evolved thermal interface in the ISM.
SPEAR (a.k.a. FIMS) is funded by NASA NAG5-5355 and the Korea MOST grants.

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