Computer Science
Scientific paper
Sep 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995csc..rept.....n&link_type=abstract
Final Report, 24 Aug. 1992 - 23 Aug 1995 Computer Sciences Corp., Calverton, MD.
Computer Science
Absorption Spectra, Interstellar Gas, Supernova Remnants, Ubv Spectra, Ultraviolet Absorption, Ultraviolet Spectra, B Stars, Iue, Milky Way Galaxy, O Stars
Scientific paper
The purpose of this study was to estimate the frequency and distribution of high-velocity gas in the Galaxy using UV absorption line measurements from archival high-dispersion IUE spectra and to identify particularly interesting regions for future study. Approximately 500 spectra have been examined. The study began with the creation of a database of all 0 and B stars with b less than or = to 30 deg observed with IUE at high dispersion over its 18-year lifetime. The original database of 2500 unique objects was reduced to 1200 objects which had optimal exposures available. The next task was to determine the distances of these stars so the high-velocity structures could be mapped in the Galaxy. Spectroscopic distances were calculated for each star for which photometry was available. The photometry was acquired for each star using the SIMBAD database. Preference was given to the ubvy system where available; otherwise the UBV system was used.
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