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D.K. Walter (South Carolina State University), R. Gelderman (Western Kentucky University), E. Guinan (Villanova University), S. Howell (Planetary Science Institute), J.R. Mattox (Francis Marion University), C.H. McGruder III (Western Kentucky University), D. Davis, M. Everett (Planetary Science Institute)
We present the first results of imaging the Interstellar Medium (ISM) using narrow-band filters with the Robotically Controlled Telescope (RCT). The RCT is the recently refurbished 1.3-meter telescope at the Kitt Peak National Observatory. Details regarding the RCT can be found elsewhere at this meeting (Gelderman, R. et al.).
Our filters are centered on diagnostic, nebular emission lines of the ions H+, He+, S+, N+ and O++. Objects of interest in the galactic and extragalactic ISM were observed including the starburst galaxy NGC 4449. Ionization ratio maps include [OIII]/Hbeta, [NII]/Halpha and the C(Hbeta) extinction map from the ratio of Halpha/Hbeta. Electron densities are derived from the ratio of images taken through filters centered on the sulfur lines at 671.7 and 673.1 nm.
Refurbishment of the RCT has been made possible by NASA NAG 58-762. Funding for filters and additional equipment has been made possible by NASA OSS NAG 5-10145 and NASA MU-SPIN NCC 5-534.
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Bulletin of the American Astronomical Society, 35 #3
© 2003. The American Astronomical Soceity.