AAS 195th Meeting, January 2000
Session 53. ISM: Ionized Gas
Display, Thursday, January 13, 2000, 9:20am-6:30pm, Grand Hall

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[53.09] The Virginia Tech H-alpha and [SII] Imaging Survey of the Northern Sky

B. Dennison, J. H. Simonetti, G. A. Topasna (Virginia Tech)

We are conducting a northern hemisphere survey of the Galactic H-alpha and [SII] emission. Our instrument, the Virginia Tech Spectral Line Imaging Camera (SLIC), utilizes a fast objective lens (f/1.2), a cryogenically-cooled TK 512x512 CCD, and narrow-band interference filters. The result is 10-degree diameter images with 1.6-arcminute pixel sizes. Observations in H-alpha are nearly complete over a region within 30 degrees of the Galactic plane between longitudes of 0 and 240 degrees, plus selected regions farther from the plane. [SII] observations have already covered a major fraction of the sky observed in H-alpha. Observations of the entire northern hemisphere in both H-alpha and [SII] are in progress. Processed images are made available to the community on the Web (http://www.phys.vt.edu/halpha).

Our survey, with its 1.6 arcminute resolution, is complementary to Reynold's and collaborators' WHAM (Wisconsin H-Alpha Mapper) survey which collects detailed spectral information with approximately 1 degree angular resolution.

This research is supported by NSF grants AST-9319670 and AST-9800476 and a grant from the Horton Foundation to Virginia Tech.

If you would like more information about this abstract, please follow the link to http://www.phys.vt.edu/halpha. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser. [Previous] | [Session 53] | [Next]