Observations of long-period Cepheids between L = 294 and 331 deg

Details Observations of long-period Cepheids between L = 294 and 331 deg Observations of long-period Cepheids between L = 294 and 331 deg

Nov 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978aj.....83.1397g&link_type=abstract

Astronomical Journal, vol. 83, Nov. 1978, p. 1397-1411.

Astronomy and Astrophysics

Astronomy

19

Astronomical Spectroscopy, Cepheid Variables, Early Stars, Radio Astronomy, Astronomical Catalogs, Electrophotometers, Light Curve, Radial Velocity, Stellar Motions, Ubv Spectra

Scientific paper

Photoelectric and spectroscopic observations of long-period Cepheids, as well as 21-cm profiles in the directions of these young stars, are presented for the Crux-Centaurus-Circinus-Norma section of the Milky Way. The UBV data have been used to revise periods and light-curve parameters and ultimately to calculate the distances of these stars. From the spectroscopic information velocity estimates have been made. Finally, the stellar velocities have been compared with H I gas motions detected along the same line of sight. These results are briefly discussed with a view to understanding the spiral structure of the region.

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