Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21347507f&link_type=abstract
American Astronomical Society, AAS Meeting #213, #475.07; Bulletin of the American Astronomical Society, Vol. 41, p.436
Astronomy and Astrophysics
Astronomy
Scientific paper
The rocket-borne Long-slit Imaging Dual Order Spectrograph (LIDOS) was used to obtain spectra of the Trifid and Orion nebula regions and their illuminating stars in the 900 - 1650 A bandpass during successive flights in 2007 and 2008. The instrument uses both positive and negative diffraction orders, employing a delta-doped CCD in addition to an MCP detector for an expanded dynamic range. We present preliminary extractions of the stellar spectra and the nebular dust scattered light profiles. The chosen lines of sight show little extinction and molecular hydrogen absorption, providing unique observations of stellar atmospheric features below 1200 A, including O VI, C III and He II, and the overall far-ultraviolet continuum output. This work was supported by NASA grants NNG04WC03G and NNX08AM68G to the Johns Hopkins University.
Feldman Paul D.
Fleming Brian
France Kevin
Lupu Roxana E.
McCandliss Stephan R.
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