Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...206..243j&link_type=abstract
Astrophysical Journal, vol. 206, May 15, 1976, pt. 1, p. 243-246. Research sponsored by the Lockheed Independent Research Progr
Astronomy and Astrophysics
Astrophysics
12
Fabry-Perot Spectrometers, Hydrogen, Nebulae, O Stars, X Ray Sources, H Alpha Line, Interstellar Gas, Kinematics, Oxygen Spectra, Stellar Envelopes, Velocity Distribution
Scientific paper
Kinematical data are illustrated and discussed. Ionized gas around Sco X-1 is moving with peaks at local standards of rest equal to plus 23 km/s and, probably, -22 km/s. A nebular arc 13 arcmin southeast of HD 148937 is kinematically indistinguishable from background. Velocity distribution north of the O VI-sequence star in the peculiar nebula G2.4 plus 1.4 is reobserved, this time in forbidden O III emission at 5007 A, removing an ambiguity of possible presence of airglow or geocoronal H-alpha in the Fabry-Perot scan profile. The Gamma Cyg nebular velocities fall within the range of various radio recombination-line data, which are themselves in some disagreement.
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