Observations of the Diffuse Far-UV Sky with SPEAR

Details Observations of the Diffuse Far-UV Sky with SPEAR Observations of the Diffuse Far-UV Sky with SPEAR

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aspc..348..541e&link_type=abstract

Astrophysics in the Far Ultraviolet: Five Years of Discovery with FUSE ASP Conference Series, Vol. 348, Proceedings of the Confe

Astronomy and Astrophysics

Astrophysics

Scientific paper

The Spectroscopy of Plasma Evolution from Astrophysical Radiation (SPEAR) instrument, aboard the STSAT-1 satellite mission, is now observing emission from the cosmic far ultraviolet background. The primary science objectives of the mission are to characterize the Galactic interstellar medium and particularly to study interfaces of hot interstellar plasma. The mission plan is to map most of the sky and then to conduct pointed observations of selected targets. We describe the mission and examples of observations of the Vela supernova remnant and the Eridanus Loop superbubble. The SPEAR results provide unprecedented imaging spectra of diffuse emission from highly ionized species including He II, C III, C IV, O III], and O VI, and from molecular hydrogen.

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