Physics – Optics
Scientific paper
May 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...188.4307d&link_type=abstract
American Astronomical Society, 188th AAS Meeting, #43.07; Bulletin of the American Astronomical Society, Vol. 28, p.889
Physics
Optics
Scientific paper
We report on preliminary results from a high-resolution, high-sensitivity imaging survey of the galactic Hα emission. The survey is carried out using the Spectral Line Imaging Camera (SLIC) which incorporates a fast (f/1.2) lens attached to a cryogenic CCD in combination with a narrowband interference filter. The pixel size is 1.6 arcminutes and the diameter of each field is 10 degrees. The fast optics, narrow bandpass (1.7 nm) filter, and high quantum-efficiency, low-noise CCD yield a high brightness sensitivity to Hα emission (1sigma ~0.2 Rayleigh, which is equivalent to EM~0.4 pc cm(-6) ). The region presented at this time includes approximately 75(deg) < l < 163(deg) and -12(deg) < b < 1(deg) , as well as several extensions away from the galactic plane. Some faint features detected include a shell connected with the star forming region W4 extending 7(deg) above the galactic plane, and filaments possibly related to galactic loops II and III. This research was supported by NSF grant AST-9319670 and a grant from the Horton Foundation to Virginia Tech.
Dennison Brian
Simonetti John H.
Topasna Gregory A.
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